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Aghabullogue were the defending champions, however, they decided not to field a team and granted a walkover to Inniscarra. For the first time ever the championship was divided along divisional lines. The champion clubs of the four divisions contested the county championship.
On 31 May 1891, Blackrock won the championship following a 4–04 to 0–00 defeat of Inniscarra in the final. This was their third championship title overall and their first title in two years.