Voter file loaded June 8, 2026 · figures are from that file, held as a fixed record
Clinton County, New York has 50,481 active registered voters — 31.8% Republican, 32.8% Democratic, and 28.6% with no party affiliation, as of June 2026.
Party registration
How Clinton County voted for president
Election results are public records.
Clinton County at a glance.
Clinton County had an estimated 77,871 residents in July 2024, the 34th most populous of New York's 62 counties, down 2.5% since the 2020 census. Of those, 64,020 are 18 or older, the voting-age population, and 20.5% are 65 or older. Its 50,481 active registered voters equal about 78.9% of that voting-age population.
It covers 1,038 square miles of land (75 people per square mile). The largest towns and cities are Plattsburgh (19,758), Plattsburgh (11,706), Peru (6,652), Champlain (5,605) and Beekmantown (5,374). The American Community Survey (2020-2024) puts it at a median age of 41.9, a median household income of $71,224, 27.6% of adults 25 and older holding a bachelor's degree or higher and 69.4% of occupied homes owned by the people living in them.
In 2024, 35,725 votes were cast for president, about 55.8% of the voting-age population; the Democratic ticket took 48.9% and the Republican ticket 51.1%. The two-party margin moved from D+22.9 in 2008 to R+2.2 in 2024.
- Population (2024 estimate)
- 77,871
- Population (2020 census base)
- 79,843
- Voting-age population (18+)
- 64,020
- Active voters per 100 adults
- 78.9
- Residents 65 and older
- 20.5%
- People per square mile
- 75
- Land area
- 1,038 sq mi
- Median age
- 41.9
- Median household income
- $71,224
- Adults 25+ with a bachelor's degree
- 27.6%
- Owner-occupied homes
- 69.4%
Largest towns and cities
- Plattsburgh 19,758
- Plattsburgh 11,706
- Peru 6,652
- Champlain 5,605
- Beekmantown 5,374
Presidential vote, 2008–2024
| Year | Democratic | Republican | Margin | Votes cast |
|---|---|---|---|---|
| 2024 | 48.9% | 51.1% | R+2.2 | 35,725 |
| 2020 | 51.8% | 46.6% | D+5.2 | 35,437 |
| 2016 | 47.4% | 46.4% | D+1.0 | 28,378 |
| 2012 | 62.0% | 36.4% | D+25.6 | 27,622 |
| 2008 | 60.6% | 37.7% | D+22.9 | 33,337 |
Sources: U.S. Census Bureau Vintage 2024 population estimates and 2024 Gazetteer; American Community Survey 2020–2024 5-year estimates; certified county presidential returns. Growth, density and turnout are simple arithmetic on those figures.
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