
The Cattaraugus County Legislative District 1 represents the following municipalities:
- Town of Dayton (2010 Census pop. 1,886)
- Town of New Albion (2010 Census pop. 1,972)
- Town of Otto (2010 Census pop. 808)
- Town of Perrysburg (2010 Census pop. 1,626)
- Town of Persia (2010 Census pop. 2,404)
- Portion of Cattaraugus Territory of the Seneca Nation of Indians

The Cattaraugus County Legislative District 2 represents the following municipalities:
- Town of Ashford (2010 Census Pop. 2,132)
- Town of East Otto (2010 Census Pop. 1,062)
- Town of Freedom (2010 Census Pop. 2,405)
- Town of Yorkshire (2010 Census Pop. 3,913)

The Cattaraugus County Legislative District 3 represents the following municipalities:
- Town of Ellicottville (2010 Census Pop. 1,576)
- Town of Farmersville (2010 Census Pop. 1,090)
- Town of Franklinville (2010 Census Pop. 2,990)
- Town of Lyndon (2010 Census Pop. 707)
- Town of Machias (2010 Census Pop. 2,375)
- Town of Mansfield (2010 Census Pop. 808)

The Cattaraugus County Legislative District 4 represents the following municipalities:
- Town of Conewango (2010 Census pop. 1,857)
- Town of Leon (2010 Census pop. 1,365)
- Town of Little Valley (2010 Census pop. 1,740)
- Town of Napoli (2010 Census pop. 1,248)
- Town of Randolph (2010 Census pop. 2,602)
- Town of South Valley (2010 Census pop. 264)
- Portion of Allegany Territory of the Seneca Nation of Indians

The Cattaraugus County Legislative District 5 represents the following municipalities:
- Town of Coldspring (2010 Census pop. 663)
- Town of Great Valley (2010 Census pop. 1,974)
- Town of Red House (2010 Census pop. 38)
- City of Salamanca (2010 Census pop. 5,815)
- Town of Salamanca (2010 Census pop. 481)
- Portion of Allegany Territory of the Seneca Nation of Indians (population of ~871)

The Cattaraugus County Legislative District 6 represents the following municipalities:
- Town of Allegany (2010 Census pop. 8,004)
- Town of Carrollton (2010 Census pop. 1,297)
- Portion of Allegany Territory of the Seneca Nation of Indians ()

The Cattaraugus County Legislative District 7 represents the following municipalities:
- Town of Ischua (2010 Census Pop.: 859)
- Town of Hinsdale (2010 Census Pop.: 2,168)
- Town of Humphrey (2010 Census Pop.: 687)
- Town of Olean (Excludes City of Olean) (Census 2010 Pop.: 1,963)
- Town of Portville (2010 Census Pop.: 3,730)

The Cattaraugus County Legislative District 8 represents the following municipalities:
- City of Olean (2010 pop.: 14,452)