Eastern Ridges and Lowlands

Geographical region of Wisconsin

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The Eastern Ridges and Lowlands is a geographical region in the eastern part of the U.S. state of Wisconsin, between Green Bay in the north, and the border with Illinois in the south. Lake Michigan lies to the east of the region.

The Eastern Ridges and Lowlands region is primarily a plain with elevations between 700 and 900 feet above sea level, but the region slopes to form two broad ridges running from north to south that exceed 1,000 feet above sea level in some places. One ridge runs along Lake Michigan from the Door Peninsula to the Illinois border. The other ridge is on the western edge of the region, stretching from Marinette County in the north to Dane County. Between the two ridges is a lowland carved out by the glaciers of the last ice age. The lowland includes the Green Bay, Lake Winnebago, and several other small rivers and lakes. While there are some escarpments along the ridges, the region is primarily flat and the changes in elevation are usually gradual. The flatness of the Eastern Ridges and Lowlands region makes it especially suitable for agriculture. The majority of the region is covered by farmland. Forests are scarce except for in the far northern part of the region. Besides farmland, the area includes a significant amount of urban and suburban development, and a large proportion of Wisconsin's population. Many of Wisconsin's largest cities are located in the Eastern Ridges and Lowlands region, including Milwaukee, Madison, Green Bay, Kenosha, Racine, Appleton, Sheboygan, and others. The abundance of cities in the area make it Wisconsin's most populous region. The largest city in this region is Milwaukee with a population of 592,025 (2018).

Counties and Cities in the Eastern Ridges and Lowlands region

Part or all of the land in the following counties is included in the Eastern Ridges and Lowlands region:

Selected Cities in Eastern Ridges and Lowlands region

In Southeastern and South Central Wisconsin

In Northeastern and East Central Wisconsin

References

WiscOnline: The Geographical Provinces of Wisconsin

43°40′N 88°30′W / 43.667°N 88.500°W / 43.667; -88.500

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Regions	Apostle Islands Central Plain Chippewa Valley Door Peninsula Driftless Area Eastern Ridges and Lowlands Fox River Valley Great River Road Lake Superior Lowland Northern Highland Western Upland
Major metropolitan areas (pop. over 500,000)	Chicago metropolitan area Madison metropolitan area Milwaukee metropolitan area Twin Cities metropolitan area
Largest cities (pop. over 50,000)	Appleton Eau Claire Green Bay Janesville Kenosha La Crosse Madison Milwaukee Oshkosh Racine Waukesha West Allis
Smaller cities (pop. 15,000 to 50,000)	Beaver Dam Beloit Brookfield Cudahy De Pere Fitchburg Fond du Lac Franklin Greenfield Hartford Hudson Kaukauna Manitowoc Marshfield Menasha Menomonie Mequon Middleton Muskego Neenah New Berlin Oak Creek Oconomowoc Onalaska River Falls Sheboygan South Milwaukee Stevens Point Sun Prairie Superior Watertown Wausau Wauwatosa West Bend Wisconsin Rapids
Largest villages (pop. over 15,000)	Ashwaubenon Bellevue Caledonia Fox Crossing Germantown Howard Menomonee Falls Mount Pleasant Pleasant Prairie
Counties	Adams Ashland Barron Bayfield Brown Buffalo Burnett Calumet Chippewa Clark Columbia Crawford Dane Dodge Door Douglas Dunn Eau Claire Florence Fond du Lac Forest Grant Green Green Lake Iowa Iron Jackson Jefferson Juneau Kenosha Kewaunee La Crosse Lafayette Langlade Lincoln Manitowoc Marathon Marinette Marquette Menominee Milwaukee Monroe Oconto Oneida Outagamie Ozaukee Pepin Pierce Polk Portage Price Racine Richland Rock Rusk Sauk Sawyer Shawano Sheboygan St. Croix Taylor Trempealeau Vernon Vilas Walworth Washburn Washington Waukesha Waupaca Waushara Winnebago Wood
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v t e Chicago metropolitan area
Major city	Chicago
Cities (over 30,000 in 2020)	Aurora Berwyn Calumet City Crown Point Crystal Lake DeKalb Des Plaines Elgin Elmhurst Evanston Gary Hammond Highland Park Joliet Kenosha Naperville North Chicago Park Ridge Portage St. Charles Valparaiso Waukegan Wheaton
Towns and villages (over 30,000 in 2020)	Addison Arlington Heights Bartlett Bolingbrook Buffalo Grove Carol Stream Carpentersville Cicero Downers Grove Elk Grove Village Glendale Heights Glenview Grayslake Gurnee Hanover Park Hoffman Estates Lombard Merrillville Mount Prospect Mundelein Niles Northbrook Oak Lawn Oak Park Orland Park Oswego Palatine Plainfield Romeoville Schaumburg Skokie Streamwood Tinley Park Wheeling Wonder Lake Woodridge
Counties	Cook DeKalb DuPage Grundy Jasper Kane Kankakee Kendall Kenosha Lake, IL Lake, IN McHenry Newton Porter Will
Regions	Great Lakes Northern Illinois Northern Indiana
Sub-regions	Chicago Southland Eastern Ridges and Lowlands Fox Valley (Illinois) Golden Corridor Illinois Technology and Research Corridor North Shore (Chicago) Northwest Indiana
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Regions of Wisconsin