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County in California, United States

Placer County, California
County
Images from top, left to right: The Auburn Courthouse, a panorama of a forested area, Lake Tahoe in Tahoe Vista
FlagSeal
Interactive map of Placer County
Location in the state of California
Coordinates: 39°04′N 120°44′W / 39.06°N 120.73°W / 39.06; -120.73
Country	United States
State	California
Regions	Sacramento Valley, Sierra Nevada
Metro area	Greater Sacramento
Incorporated	April 25, 1851
Named for	Placer mining, a reference to the area being a center of the California Gold Rush
County seat	Auburn
Largest city	Roseville
Government
• Type	Council–CEO
• Body	Board of Supervisors Bonnie Gore Shanti Landon Jim Holmes Suzanne Jones Cindy Gustafson
• Chair	Suzanne Jones
• Vice Chair	Bonnie Gore
• County Executive Officer	Daniel J. Chatigny
Area
• Total	1,502 sq mi (3,890 km)
• Land	1,407 sq mi (3,640 km)
• Water	95 sq mi (250 km)
Highest elevation	9,044 ft (2,757 m)
Population
• Total	404,739
• Density	270/sq mi (100/km)
Time zone	UTC−8 (Pacific Time Zone)
• Summer (DST)	UTC−7 (Pacific Daylight Time)
Area codes	530, 916, 279
FIPS code	06-061
GNIS feature ID	277295
Congressional district	3rd
Website	www.placer.ca.gov

Gold specimen from the Eagle's Nest Mine, a source of specimen gold in Placer County

Placer County (/ˈplæsər/ PLASS-ər; Placer, Spanish for "sand deposit"), officially the County of Placer, is a county located in the U.S. state of California. As of the 2020 census, the population was 404,739. The county seat is Auburn.

Placer County is included in the Greater Sacramento metropolitan area. It is in both the Sacramento Valley and Sierra Nevada regions, in what is known as the Gold Country. The county stretches roughly 65 miles (105 km) from Sacramento's suburbs at Roseville to the Nevada border and the shore of Lake Tahoe.

Etymology

The discovery of gold in 1848 brought tens of thousands of miners from around the world during the California Gold Rush. In addition, many more thousands came to provide goods and services to the miners. On April 25, 1851, the fast-growing county was formed from parts of Sutter and Yuba Counties with Auburn as the county seat. Placer County took its name from the Spanish word for sand or gravel deposits containing gold. Miners washed away the gravel, leaving the heavier gold, in a process known as "placer mining".

History

Gold mining was a major industry through the 1880s, but gradually the new residents turned to farming the fertile foothill soil, harvesting timber and working for the Southern Pacific Railroad. Auburn was settled when Claude Chana discovered gold in Auburn Ravine in May 1848, and it later became a shipping and supply center for the surrounding gold camps. The cornerstone of Placer's courthouse, which is clearly visible from Interstate 80 through Auburn, was laid on July 4, 1894. The building was renovated during the late 1980s and continues to serve the public with courtrooms, a sheriff's office and the Placer County Museum. Roseville, once a small agricultural center, became a major railroad center and grew to the county's most populous city after Southern Pacific Railroad moved its railroad switching yards there in 1908.

Loomis and Newcastle began as mining towns, but soon became centers of a booming fruit-growing industry, supporting many local packing houses. Penryn was founded by a Welsh miner, Griffith Griffith, who established a large granite quarry. Rocklin began as a railroad town and became home to a number of granite quarries. Lincoln and Sheridan continue to support ranching and farming. Lincoln also is the home of one of the county's oldest businesses, the Gladding, McBean terra cotta clay manufacturing plant, established in 1875.

The 1960 Winter Olympics were hosted in Squaw Valley, in Placer County.

Geography

According to the U.S. Census Bureau, the county has an area of 1,502 square miles (3,890 km), of which 1,407 square miles (3,640 km) is land and 95 square miles (250 km) (6.4%) is water. Watercourses in Placer County include the American River and Bunch Creek. 40.96% of Lake Tahoe's surface area is in Placer County, more than in any of the four other counties in which it lies.

The county is typically divided into three regions; “South Placer” in the Central Valley and the Sierra Nevada foothills south of Auburn, “Gold Country” which consists of the Sierra Foothills around Auburn, Colfax, and Foresthill, and the Sierra Nevada which consists of all areas east of Foresthill and northeast of Colfax (including the Lake Tahoe region). Roughly 3/4ths of the population lives in South Placer, Roseville being the primary job and retail center of the county. Auburn and Lincoln are the main secondary commercial centers.

Adjacent counties

Nevada County - north
Washoe County, Nevada - northeast
Carson City, Nevada - east
Douglas County, Nevada - southeast
El Dorado County - south
Sacramento County - southwest
Sutter County - west
Yuba County - northwest

National protected areas

Eldorado National Forest in part
Tahoe National Forest in part

Demographics

Historical population
Census	Pop.	%±
1860	13,270	—
1870	11,357	−14.4%
1880	14,232	25.3%
1890	15,101	6.1%
1900	15,786	4.5%
1910	18,237	15.5%
1920	18,584	1.9%
1930	24,468	31.7%
1940	28,108	14.9%
1950	41,649	48.2%
1960	56,998	36.9%
1970	77,306	35.6%
1980	117,247	51.7%
1990	172,796	47.4%
2000	248,399	43.8%
2010	348,432	40.3%
2020	404,739	16.2%
2023 (est.)	423,561	4.7%
U.S. Decennial Census 1790–1960 1900–1990 1990–2000 2010 2020

2020 census

**Placer County, California – Racial and ethnic composition**
*Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos may be of any race.*
Race / Ethnicity (NH = Non-Hispanic)	Pop 2000	Pop 2010	Pop 2020	% 2000	% 2010	% 2020
White alone (NH)	207,326	265,294	272,471	83.43%	76.14%	67.32%
Black or African American alone (NH)	1,896	4,427	6,440	0.76%	1.27%	1.59%
Native American or Alaska Native alone (NH)	1,687	2,080	2,010	0.68%	0.60%	0.50%
Asian alone (NH)	7,148	19,963	34,776	2.88%	5.73%	8.59%
Pacific Islander alone (NH)	324	697	967	0.13%	0.20%	0.24%
Other Race alone (NH)	336	603	2,091	0.14%	0.17%	0.52%
Mixed Race or Multi-Racial (NH)	5,753	10,658	25,356	2.32%	3.06%	6.26%
Hispanic or Latino (any race)	24,019	44,710	60,628	9.67%	12.83%	14.98%
Total	248,399	348,432	404,739	100.00%	100.00%	100.00%

2011

Population, race, and income
Total population	343,554
White	290,923	84.7%
Black or African American	4,587	1.3%
American Indian or Alaska Native	2,654	0.8%
Asian	20,515	6.0%
Native Hawaiian or other Pacific Islander	750	0.2%
Some other race	11,478	3.3%
Two or more races	12,647	3.7%
Hispanic or Latino (of any race)	43,268	12.6%
Per capita income	$35,583
Median household income	$74,645
Median family income	$90,446

Places by population, race, and income

Places by population and race
Place	Type	Population	White	Other	Asian	Black or African American	Native American	Hispanic or Latino (of any race)
Alta	CDP	549	97.6%	2.0%	0.0%	0.0%	0.4%	9.8%
Auburn	City	13,476	90.4%	6.7%	1.2%	1.0%	0.7%	6.6%
Carnelian Bay	CDP	289	100.0%	0.0%	0.0%	0.0%	0.0%	0.0%
Colfax	City	1,999	92.1%	5.0%	2.7%	0.1%	0.2%	4.1%
Dollar Point	CDP	1,091	98.4%	1.6%	0.0%	0.1%	0.0%	8.9%
Dutch Flat	CDP	114	100.0%	0.0%	0.0%	0.0%	0.0%	3.5%
Foresthill	CDP	1,823	84.5%	7.2%	2.1%	0.0%	6.1%	0.6%
Granite Bay	CDP	22,201	88.0%	5.3%	5.2%	0.4%	1.2%	5.3%
Kings Beach	CDP	3,136	95.7%	2.8%	0.0%	0.3%	1.2%	61.3%
Kingvale ‡	CDP	0	0.0%	0.0%	0.0%	0.0%	0.0%	0.0%
Lincoln	City	40,177	79.0%	11.6%	6.2%	2.2%	1.0%	18.7%
Loomis	Town	6,511	92.2%	3.1%	3.7%	0.8%	0.2%	3.1%
Meadow Vista	CDP	3,095	92.5%	2.9%	1.5%	0.0%	3.0%	2.7%
Newcastle	CDP	1,166	87.7%	7.5%	0.0%	0.0%	4.9%	10.5%
North Auburn	CDP	13,184	83.0%	10.2%	4.9%	1.1%	0.8%	16.2%
Penryn	CDP	665	99.1%	0.0%	0.9%	0.0%	0.0%	0.0%
Rocklin	City	55,713	83.1%	6.0%	8.2%	1.7%	1.1%	10.5%
Roseville	City	116,613	81.4%	7.7%	8.4%	1.7%	0.8%	15.1%
Sheridan	CDP	1,444	85.9%	6.8%	0.0%	0.0%	7.3%	13.8%
Sunnyside-Tahoe City	CDP	1,667	95.4%	2.8%	0.0%	1.7%	0.0%	15.6%
Tahoe Vista	CDP	1,376	86.4%	9.4%	4.1%	0.0%	0.0%	42.5%
Tahoma ‡	CDP	361	100.0%	0.0%	0.0%	0.0%	0.0%	10.2%
‡ Data for Placer County area of this CDP

Places by population and income
Place	Type	Population	Per capita income	Median household income	Median family income
Alta	CDP	549	$27,408	$56,250	$68,214
Auburn	City	13,476	$34,471	$62,600	$84,679
Carnelian Bay	CDP	289	$29,998	$47,900	$55,000
Colfax	City	1,999	$27,379	$58,750	$70,455
Dollar Point	CDP	1,091	$36,547	$70,673	$74,659
Dutch Flat	CDP	114	$34,586	$50,288	$73,056
Foresthill	CDP	1,823	$29,272	$41,410	$79,276
Granite Bay	CDP	22,201	$58,548	$126,937	$135,578
Kings Beach	CDP	3,136	$23,607	$40,060	$55,268
Kingvale ‡	CDP	0
Lincoln	City	40,177	$33,260	$75,071	$83,373
Loomis	Town	6,511	$35,922	$86,990	$94,966
Meadow Vista	CDP	3,095	$35,557	$69,709	$88,806
Newcastle	CDP	1,166	$24,996	$31,736	$49,348
North Auburn	CDP	13,184	$25,674	$44,107	$51,752
Penryn	CDP	665	$46,799	$87,604	$98,415
Rocklin	City	55,713	$34,658	$79,675	$92,295
Roseville	City	116,613	$34,047	$75,245	$92,433
Sheridan	CDP	1,444	$24,253	$67,813	$81,339
Sunnyside-Tahoe City	CDP	1,667	$32,055	$62,470	$85,776
Tahoe Vista	CDP	1,376	$32,092	$69,145	$77,933
Tahoma ‡	CDP	361	$45,543	$77,926	$77,756
‡ Data for Placer County area of this CDP

2010 Census

The 2010 United States census reported that Placer County had a population of 348,432. The racial makeup of Placer County was 290,977 (83.5%) White, 4,751 (1.4%) African American, 3,011 (0.9%) Native American, 20,435 (5.9%) Asian, 778 (0.2%) Pacific Islander, 13,375 (3.8%) from other races, and 15,105 (4.3%) from two or more races. There were 4,710 Hispanics or Latinos of any race (12.8%).

Population reported at 2010 United States census
The County	Total Population	White	African American	Native American	Asian	Pacific Islander	other races	two or more races	Hispanic or Latino (of any race)
Placer County	348,432	290,977	4,751	3,011	20,435	778	13,375	15,105	44,710
Incorporated cities and towns	Total Population	White	African American	Native American	Asian	Pacific Islander	other races	two or more races	Hispanic or Latino (of any race)
Auburn	13,330	11,863	100	129	240	9	405	584	1,331
Colfax	1,963	1,759	4	26	29	2	54	89	178
Lincoln	42,819	34,087	629	399	2,663	115	3,125	1,801	7,597
Loomis	6,430	5,733	33	74	169	12	149	260	568
Rocklin	56,974	47,047	858	410	4,105	150	1,538	2,866	6,555
Roseville	118,788	94,199	2,329	885	10,026	346	5,087	5,916	17,359
Census-designated places	Total Population	White	African American	Native American	Asian	Pacific Islander	other races	two or more races	Hispanic or Latino (of any race)
Alta	610	592	1	3	5	1	2	6	23
Carnelian Bay	524	493	1	4	14	0	1	11	13
Dollar Point	1,215	1,145	4	6	19	0	24	17	83
Dutch Flat	160	155	0	3	1	0	0	1	4
Foresthill	1,483	1,371	8	29	6	2	17	50	97
Granite Bay	20,402	17,960	148	138	1,152	28	222	754	1,260
Kings Beach	3,796	3,216	15	20	14	2	409	120	2,115
Kingvale‡	143	135	1	1	0	1	2	3	6
Meadow Vista	3,217	3,017	1	21	35	6	34	103	171
Newcastle	1,224	1,113	7	19	17	0	35	33	104
North Auburn	13,022	11,081	115	172	298	13	893	450	2,108
Penryn	831	718	3	22	32	3	27	26	79
Sheridan	1,238	1,026	7	20	13	3	113	56	253
Sunnyside-Tahoe City	1,557	1,480	3	4	15	1	32	22	84
Tahoe Vista	1,433	1,279	3	8	21	2	82	38	352
Tahoma‡	411	393	4	3	7	0	1	3	16
Other unincorporated areas	Total Population	White	African American	Native American	Asian	Pacific Islander	other races	two or more races	Hispanic or Latino (of any race)
All others not CDPs (combined)	57,003	51,248	478	616	1,554	83	1,125	1,899	4,360
‡ Note: these numbers reflect only the portion of these CDPs in Placer County

2000

As of the census of 2000, there were 248,399 people, 93,382 households, and 67,701 families residing in the county. The population density was 177 inhabitants per square mile (68/km). There were 107,302 housing units at an average density of 76 per square mile (29/km). The racial makeup of the county was 88.6% White, 0.8% Black or African American, 0.9% Native American, 3.0% Asian, 0.2% Pacific Islander, 3.4% from other races, and 3.2% from two or more races. 9.7% of the population were Hispanic or Latino of any race. 15.5% were of German, 12.3% English, 10.6% Irish, 7.1% Italian and 7.0% American ancestry according to Census 2000. 89.7% spoke only English at home; 6.0% spoke Spanish.

There were 93,382 households, out of which 35.3% had children under the age of 18 living with them, 59.4% were married couples living together, 9.2% had a female householder with no husband present, and 27.5% were non-families. 21.3% of all households were made up of individuals, and 8.1% had someone living alone who was 65 years of age or older. The average household size was 2.63 and the average family size was 3.06.

In the county, the population was spread out, with 26.5% under the age of 18, 6.9% from 18 to 24, 29.00% from 25 to 44, 24.5% from 45 to 64, and 13.1% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 96.4 males. For every 100 females age 18 and over, there were 93.9 males.

The median income for a household in the county was $57,535, and the median income for a family was $65,858 (these figures had risen to $68,463 and $80,987 respectively as of a 2007 estimate). Males had a median income of $50,410 versus $33,763 for females. The per capita income for the county was $27,963. About 3.9% of families and 5.8% of the population were below the poverty line, including 6.3% of those under age 18 and 3.8% of those age 65 or over. Unemployment in the county is just under 7% which is considerably lower than the state's average.

Politics, government, and policing

Government

County government is by a five-person four-year term elected board of supervisors from five single member districts with a board-appointed county manager and his/her department administrators.

Law enforcement

The Placer County Sheriff's Office provides court protection, jail administration, and coroner services for all of Placer County. It provides patrol, detective, and other police services for the unincorporated areas of the county plus by contract to the city of Colfax and the town of Loomis.

Politics

Voter registration

Population and registered voters
Total population	343,554
Registered voters	208,025	60.6%
Democratic	58,257	28.0%
Republican	97,817	47.0%
Democratic–Republican spread	-39,560	-19.0%
American Independent	4,722	2.3%
Green	1,116	0.5%
Libertarian	2,257	1.1%
Peace and Freedom	359	0.2%
Americans Elect	10	0.0%
Other	410	0.2%
No party preference	43,077	20.7%

Cities by population and voter registration

Cities by population and voter registration
City	Population	Registered voters	Democratic	Republican	D–R spread	Other	No party preference
Auburn	13,476	63.8%	30.9%	41.7%	-10.8%	7.4%	22.3%
Colfax	1,999	46.2%	28.3%	37.6%	-9.3%	11.8%	26.7%
Lincoln	40,177	61.5%	29.1%	48.3%	-19.2%	5.7%	19.1%
Loomis	6,511	64.5%	23.7%	51.6%	-27.9%	6.4%	20.3%
Rocklin	55,713	58.1%	26.6%	47.8%	-21.2%	7.0%	20.8%
Roseville	116,613	58.8%	29.3%	45.8%	-16.5%	6.2%	21.0%

Overview

In its early history Placer County was solidly Republican: it voted Republican in every election between 1860 and 1912, when Bull Moose nominee Theodore Roosevelt was California's official Republican nominee. Between 1916 and 1976, however, the county voted Republican only in three landslide elections of 1920, 1952 and 1972 – in all of which its GOP margins were much smaller than for the state or nation. Since the “Reagan Revolution” Placer County has become and remained a stronghold of the Republican Party; it consistently elects Republican public officials and has voted for presidential candidates from the party in every election since 1980.

United States presidential election results for Placer County, California
Year	Republican		Democratic		Third party(ies)
Year	No.	%	No.	%	No.	%
2024	123,941	52.76%	103,958	44.25%	7,034	2.99%
2020	122,488	52.10%	106,869	45.46%	5,727	2.44%
2016	95,138	51.14%	73,509	39.52%	17,377	9.34%
2012	99,921	58.19%	66,818	38.91%	4,972	2.90%
2008	94,647	54.45%	75,112	43.21%	4,053	2.33%
2004	95,969	62.61%	55,573	36.26%	1,736	1.13%
2000	69,835	59.28%	42,449	36.04%	5,515	4.68%
1996	49,808	52.75%	34,981	37.05%	9,638	10.21%
1992	38,298	41.92%	30,783	33.69%	22,285	24.39%
1988	42,096	59.59%	27,516	38.95%	1,030	1.46%
1984	38,035	62.94%	21,294	35.24%	1,098	1.82%
1980	28,179	54.78%	17,311	33.65%	5,950	11.57%
1976	18,154	45.03%	21,026	52.16%	1,131	2.81%
1972	18,597	50.34%	16,911	45.77%	1,437	3.89%
1968	12,427	42.64%	14,050	48.21%	2,667	9.15%
1964	9,389	33.92%	18,256	65.96%	31	0.11%
1960	10,439	43.75%	13,304	55.75%	120	0.50%
1956	9,059	45.89%	10,611	53.76%	69	0.35%
1952	9,841	50.59%	9,444	48.55%	168	0.86%
1948	5,570	36.87%	8,837	58.49%	702	4.65%
1944	4,196	36.78%	7,149	62.66%	64	0.56%
1940	3,887	31.26%	8,402	67.56%	147	1.18%
1936	2,321	22.34%	7,959	76.62%	108	1.04%
1932	2,242	25.82%	6,200	71.40%	241	2.78%
1928	3,669	49.25%	3,685	49.46%	96	1.29%
1924	2,192	36.63%	390	6.52%	3,402	56.85%
1920	2,894	59.44%	1,559	32.02%	416	8.54%
1916	1,954	33.74%	3,375	58.28%	462	7.98%
1912	15	0.34%	1,823	41.84%	2,519	57.82%
1908	1,865	51.45%	1,491	41.13%	269	7.42%
1904	2,050	62.61%	1,023	31.25%	201	6.14%
1900	2,009	54.64%	1,592	43.30%	76	2.07%
1896	1,890	51.41%	1,721	46.82%	65	1.77%
1892	1,743	49.27%	1,524	43.08%	271	7.66%
1888	1,761	52.35%	1,547	45.99%	56	1.66%
1884	1,749	52.89%	1,483	44.84%	75	2.27%
1880	1,643	52.71%	1,416	45.43%	58	1.86%

In the United States House of Representatives, Placer County is within California's 3rd congressional district, represented by Kevin Kiley (R–Rocklin).

In the California State Senate, Placer County is split between the 1st, 4th, and 6th districts, represented by Megan Dahle, Marie Alvarado-Gil, and Roger Niello, respectively.

In the California State Assembly, the county is split between the 1st, 3rd, and 5th districts, represented by Heather Hadwick, James Gallagher, and Joe Patterson respectively.

Crime

The following table includes the number of incidents reported and the rate per 1,000 persons for each type of offense.

Population and crime rates
Population	343,554
Violent crime	816	2.38
Homicide	6	0.02
Forcible rape	61	0.18
Robbery	156	0.45
Aggravated assault	593	1.73
Property crime	4,274	12.44
Burglary	1,606	4.67
Larceny-theft	5,513	16.05
Motor vehicle theft	711	2.07
Arson	42	0.12

Cities by population and crime rates

Cities by population and crime rates
City	Population	Violent crimes	Violent crime rate per 1,000 persons	Property crimes	Property crime rate per 1,000 persons
Auburn	13,787	44	3.19	249	18.06
Lincoln	44,378	14	0.32	506	11.40
Rocklin	58,865	49	0.83	917	15.58
Roseville	122,896	293	2.38	3,288	26.75

Economy

Top employers

According to the county's 2010 Comprehensive Annual Financial Report, the top employers in the county are:

#	Employer	# of Employees
1	Kaiser Permanente	3,064
2	Hewlett-Packard	2,500
3	Placer County	2,400
4	Union Pacific Railroad	2,000
5	Sutter Health	1,983
6	Northstar at Tahoe	1,500
7	Thunder Valley Casino Resort	1,412
8	City of Roseville	1,282
9	PRIDE Industries	1,135
10	Raley's Supermarkets	1,006

mPOWER Placer

mPOWER Placer is Placer County's Property Assessed Clean Energy (PACE) program. It provides financing to commercial, industrial, agricultural and multifamily property owners to install energy efficiency, water conservation and renewable energy retrofits. The program, administered by the Placer County Treasurer-Tax Collector’s Office, was approved by the Board of Supervisors on February 9, 2010, and launched on March 22, 2010, and is open to eligible Placer County property owners.

Transportation

Major highways

Public transportation

Placer County Transit provides basic bus service primarily along the I-80 corridor between Alta and the Watt Ave. Sacramento Regional Transit light rail station. PCT also runs commuter service to Downtown Sacramento.
The cities of Auburn, Lincoln, and Roseville have their own local transit service. The city of Roseville also offers a commuter service to Sacramento.
Gold Country Stage (Nevada County) provides a connection between Auburn and Grass Valley.
Tahoe Truckee Area Regional Transit, operated by Placer County and the City of Truckee, operates in Truckee (Nevada County), Tahoe City and along the North Shore of Lake Tahoe to Incline Village, Nevada.
Greyhound and Amtrak provide long-distance intercity service.

Airports

There are three general aviation airports in Placer County:

The closest commercial airport is Sacramento International Airport in Sacramento.

Communities

Cities

Towns

Loomis

Census-designated places

Other communities

Ghost town

Iowa Hill

Population ranking

The population ranking of the following table is based on the 2020 census of Placer County.

† county seat

Rank	City/Town/etc.	Municipal type	Population (2020 Census)
1	Roseville	City	147,773
2	Rocklin	City	71,601
3	Lincoln	City	49,757
4	Granite Bay	CDP	21,247
5	† Auburn	City	13,776
6	North Auburn	CDP	13,452
7	Loomis	Town	6,836
8	Kings Beach	CDP	3,563
9	Meadow Vista	CDP	3,263
10	Colfax	City	1,995
11	Foresthill	CDP	1,692
12	Sunnyside-Tahoe City	CDP	1,555
13	Tahoe Vista	CDP	1,392
14	Sheridan	CDP	1,385
15	Newcastle	CDP	1,321
16	Dollar Point	CDP	1,261
17	Penryn	CDP	1,150
18	Tahoma (partially in El Dorado County)	CDP	1,034
19	Alta	CDP	615
20	Carnelian Bay	CDP	518
21	Dutch Flat	CDP	183
22	Kingvale (mostly in Nevada County)	CDP	128
23	Auburn Rancheria	AIAN	2

Education

School districts include:

Unified K-12:

Secondary school districts:

Additionally, Twin Rivers Unified School District includes a section of the county for grades 9-12 only.

Elementary school districts:

Notes

Other = Some other race + Two or more races
Native American = Native Hawaiian or other Pacific Islander + American Indian or Alaska Native
^ Percentage of registered voters with respect to total population. Percentages of party members with respect to registered voters follow.
Only larceny-theft cases involving property over $400 in value are reported as property crimes.

References

"Placer County". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved February 6, 2015.
"Board of Supervisors | Placer County, CA".
"Mount Baldy-West Ridge". Peakbagger.com. Retrieved February 6, 2015.
"Placer County, California". United States Census Bureau. Retrieved January 30, 2022.
"Find a County". National Association of Counties. Retrieved June 7, 2011.
AbbiAgency (February 13, 2024). "A History-Lover's Guide to Placer County". Visit Placer. Retrieved May 13, 2024.
"2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Retrieved October 3, 2015.
Bureau, U.S. Census. "U.S. Census website". United States Census Bureau. Retrieved August 29, 2018. {{cite web}}: |last= has generic name (help)
"Annual Estimates of the Resident Population for Counties: April 1, 2020 to July 1, 2023". United States Census Bureau. Retrieved March 26, 2024.
"Census of Population and Housing from 1790-2000". US Census Bureau. Retrieved January 24, 2022.
"Historical Census Browser". University of Virginia Library. Retrieved October 3, 2015.
Forstall, Richard L., ed. (March 27, 1995). "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved October 3, 2015.
"Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. April 2, 2001. Retrieved October 3, 2015.
^ "P2 Hispanic or Latino, and Not Hispanic or Latino by Race – 2010: DEC Redistricting Data (PL 94-171) – Placer County, California". United States Census Bureau.
^ "P2 Hispanic or Latino, and Not Hispanic or Latino by Race – 2020: DEC Redistricting Data (PL 94-171) – Placer County, California". United States Census Bureau.
"P004: Hispanic or Latino, and Not Hispanic or Latino by Race – 2000: DEC Summary File 1 – Placer County, California". United States Census Bureau.
^ U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B02001. U.S. Census website. Retrieved October 26, 2013.
^ U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B03003. U.S. Census website. Retrieved October 26, 2013.
^ U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B19301. U.S. Census website. Retrieved October 21, 2013.
^ U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B19013. U.S. Census website. Retrieved October 21, 2013.
^ U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B19113. U.S. Census website. Retrieved October 21, 2013.
^ U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates. U.S. Census website. Retrieved October 21, 2013.
U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B01003. U.S. Census website. Retrieved October 21, 2013.
^ Data unavailable
"2010 Census P.L. 94-171 Summary File Data". United States Census Bureau.
"U.S. Census website". United States Census Bureau. Retrieved May 14, 2011.
"Placer County, California - Fact Sheet - American FactFinder". Factfinder.census.gov. Archived from the original on February 11, 2020. Retrieved July 22, 2010.
^ California Secretary of State. February 10, 2013 - Report of Registration Archived July 27, 2013, at the Wayback Machine. Retrieved October 31, 2013.
Menendez, Albert J.; The Geography of Presidential Elections in the United States, 1868-2004, pp. 153-156 ISBN 0786422173
Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org.
"2021 Citizens Redistricting Commission Senate Districts" (PDF). California Citizens Redistricting Commission.
"Final Maps". California Citizens Redistricting Commission.
^ Office of the Attorney General, Department of Justice, State of California. Table 11: Crimes – 2009 Archived December 2, 2013, at the Wayback Machine. Retrieved November 14, 2013.
^ United States Department of Justice, Federal Bureau of Investigation. Crime in the United States, 2012, Table 8 (California). Retrieved November 14, 2013.
County of Placer CAFR
"Explore Census Data". United States Census Bureau. United States Census Bureau. Retrieved October 8, 2021.
Staff, Website Services & Coordination. "2010 Census Interactive Population Map (Text Version) - U.S. Census Bureau". www.census.gov.
^ "2020 CENSUS - SCHOOL DISTRICT REFERENCE MAP: Placer County, CA" (PDF). U.S. Census Bureau. Retrieved August 28, 2024. - Text list

External links

Places adjacent to Placer County, California

Yuba County

Nevada County

Sutter County

Placer County, California

Washoe County, Nevada and Carson City, Nevada

Sacramento County

El Dorado County

Douglas County, Nevada

v t e Municipalities and communities of Placer County, California, United States
County seat: Auburn
Cities and towns	Auburn Colfax Lincoln Loomis Rocklin Roseville	Placer County map
CDPs	Alta Carnelian Bay Cedar Flat Dollar Point Dutch Flat Foresthill Granite Bay Kings Beach Kingvale‡ Meadow Vista Newcastle North Auburn Penryn Sheridan Sunnyside–Tahoe City Tahoe Vista Tahoma‡
Unincorporated communities	Alpine Meadows Applegate Baxter Big Bend Blue Canyon Bowman Brockway Casa Loma Chambers Lodge Cisco Cisco Grove Clipper Gap Donner Emigrant Gap Gold Hill Hidden Valley Homewood Idlewild Iowa Hill Kilaga Springs Lake Forest Michigan Bluff Olympic Valley Ophir Rainbow Soda Springs Sunnyside Tahoe City Todd Valley Weimar Yankee Jims
Ghost towns	Bath Deadwood East Auburn Gold Run Last Chance Secret Ravine Secret Town Towle Virginiatown Westville
Footnotes	‡This CDP also has portions in an adjacent county or counties
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Greater Sacramento

Counties

Major city

Sacramento

Cities
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towns

100k–200k	Elk Grove Roseville
25k–100k	Antelope Arden-Arcade Carmichael Citrus Heights Davis El Dorado Hills Fair Oaks Florin Folsom Foothill Farms Galt Lincoln North Highlands Orangevale Rancho Cordova Rocklin West Sacramento Woodland Yuba City
10k–25k	Auburn Cameron Park Diamond Springs Gardnerville Ranchos (NV) Granite Bay Grass Valley La Riviera Lemon Hill Linda Marysville North Auburn Olivehurst Parkway Placerville Rio Linda Rosemont South Lake Tahoe Truckee Vineyard

Sub-regions

v t e Sacramento Valley
Counties	Butte Colusa Glenn Placer Sacramento Shasta Sutter Tehama Yolo Yuba
Major cities	Sacramento
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Cities and towns 10k-25k	Auburn Galt Granite Bay La Riviera Linda Magalia Marysville North Auburn Olivehurst Oroville Parkway Red Bluff Rio Linda Rosemont Shasta Lake Vineyard
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