Seneca County, New York
Precinct data
Results by precinct
27 precincts · 15,105 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct 1000004360991000004 | 309 | 634 | 4 | 947 | 32.6% | 66.9% | R+34.3 |
|---|---|---|---|---|---|---|---|
| Precinct 0400001360990400001 | 340 | 462 | 6 | 808 | 42.1% | 57.2% | R+15.1 |
| Precinct 1000001360991000001 | 316 | 417 | 2 | 735 | 43.0% | 56.7% | R+13.7 |
| Precinct 0900001360990900001 | 293 | 430 | 5 | 728 | 40.2% | 59.1% | R+18.8 |
| Precinct 0100001360990100001 | 417 | 301 | 9 | 727 | 57.4% | 41.4% | D+16.0 |
| Precinct 0700008360990700008 | 313 | 405 | 7 | 725 | 43.2% | 55.9% | R+12.7 |
| Precinct 0200003360990200003 | 256 | 432 | 8 | 696 | 36.8% | 62.1% | R+25.3 |
| Precinct 1000002360991000002 | 260 | 385 | 7 | 652 | 39.9% | 59.0% | R+19.2 |
| Precinct 0200002360990200002 | 279 | 363 | 4 | 646 | 43.2% | 56.2% | R+13.0 |
| Precinct 0700004360990700004 | 294 | 349 | 2 | 645 | 45.6% | 54.1% | R+8.5 |
| Precinct 0700002360990700002 | 310 | 284 | 2 | 596 | 52.0% | 47.7% | D+4.4 |
| Precinct 0100002360990100002 | 333 | 239 | 7 | 579 | 57.5% | 41.3% | D+16.2 |
| Precinct 0300001360990300001 | 161 | 386 | 1 | 548 | 29.4% | 70.4% | R+41.1 |
| Precinct 1000003360991000003 | 215 | 305 | 5 | 525 | 41.0% | 58.1% | R+17.1 |
| Precinct 0500002360990500002 | 206 | 302 | 5 | 513 | 40.2% | 58.9% | R+18.7 |
| Precinct 0700001360990700001 | 284 | 224 | 5 | 513 | 55.4% | 43.7% | D+11.7 |
| Precinct 0200001360990200001 | 226 | 273 | 6 | 505 | 44.8% | 54.1% | R+9.3 |
| Precinct 1000005360991000005 | 192 | 307 | 3 | 502 | 38.2% | 61.2% | R+22.9 |
| Precinct 0500001360990500001 | 213 | 282 | 6 | 501 | 42.5% | 56.3% | R+13.8 |
| Precinct 0700006360990700006 | 242 | 252 | 5 | 499 | 48.5% | 50.5% | R+2.0 |
| Precinct 0700005360990700005 | 213 | 280 | 4 | 497 | 42.9% | 56.3% | R+13.5 |
| Precinct 0800001360990800001 | 135 | 288 | 0 | 423 | 31.9% | 68.1% | R+36.2 |
| Precinct 0600002360990600002 | 193 | 183 | 3 | 379 | 50.9% | 48.3% | D+2.6 |
| Precinct 0700003360990700003 | 194 | 162 | 2 | 358 | 54.2% | 45.3% | D+8.9 |
| Precinct 0700007360990700007 | 188 | 122 | 3 | 313 | 60.1% | 39.0% | D+21.1 |
| Precinct 0600003360990600003 | 122 | 146 | 5 | 273 | 44.7% | 53.5% | R+8.8 |
| Precinct 0600001360990600001 | 106 | 166 | 0 | 272 | 39.0% | 61.0% | R+22.1 |
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | +1.3% |
| 1896 | −8.9% |
| 1900 | −4.4% |
| 1904 | −7.4% |
| 1908 | −8.6% |
| 1912 | +3.8% |
| 1916 | −7.1% |
| 1920 | −33.4% |
| 1924 | −49.0% |
| 1928 | −33.8% |
| 1932 | −15.1% |
| 1936 | −29.1% |
| 1940 | −33.0% |
| 1944 | −27.3% |
| 1948 | −18.9% |
| 1952 | −38.1% |
| 1956 | −48.4% |
| 1960 | −21.1% |
| 1964 | +33.0% |
| 1968 | −14.3% |
| 1972 | −35.6% |
| 1976 | −14.2% |
| 1980 | −15.8% |
| 1984 | −32.1% |
| 1988 | −7.4% |
| 1992 | +2.5% |
| 1996 | +13.0% |
| 2000 | +0.7% |
| 2004 | −6.5% |
| 2008 | +2.6% |
| 2012 | +9.1% |
| 2016 | −11.0% |
| 2020 | −9.1% |
| 2024 | −11.8% |
U.S. Senate
Registered voters
By party of registration, over time
Registration and the presidential vote track closely here — within 0.5 points.
21,705 registered voters · 2026
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
+190 net domestic migration · 2025
Net −2,064 over 2011–2025 · gain loss
Arrivals reported $52,697 in average income, against $70,663 for residents who stayed — 25% lower. (IRS SOI, 2022–23)
The places arrivals came from lean D+2.3 on average — 14 points more Democratic-leaning than Seneca County, NY itself (R+11.8).
Where arrivals came from lean of each source
- Ontario County, NY150R+1.2
- Wayne County, NY73R+23.0
- Tompkins County, NY52D+50.0
- Cayuga County, NY47R+13.0
- Monroe County, NY41D+19.0
- Onondaga County, NY22D+17.2
Where departures went households, 2022–23
- Ontario County, NY147
- Wayne County, NY68
- Cayuga County, NY47
- Tompkins County, NY46
- Monroe County, NY42
- Onondaga County, NY23
Migration is one input to a place’s political change, not its cause — a shift can also come from residents changing their minds, generational turnover, or turnout. These figures describe the places people moved between; they do not measure how any mover voted.
| Year | Net domestic migration |
|---|---|
| 2011 | +54 |
| 2012 | −51 |
| 2013 | −176 |
| 2014 | −476 |
| 2015 | −103 |
| 2016 | −113 |
| 2017 | −426 |
| 2018 | −62 |
| 2019 | −175 |
| 2021 | −165 |
| 2022 | −530 |
| 2023 | −214 |
| 2024 | +183 |
| 2025 | +190 |
Seneca County sits between Cayuga and Seneca lakes, with a small population split between agricultural townships and the village of Waterloo. It backed the Republican presidential nominee by nearly 12 points in 2024, continuing a rightward shift from its closer margins a decade ago.
Across the recorded series it reached a Democratic high of 33.0 points in 1964 and a Republican high of 49.0 points in 1924. Between 2020 and 2024 the county moved 2.7 points toward the Republican candidate; the 2024 margin was 11.8 points.
A population of 32,920, a 87% non-Hispanic-white share, and a median household income of $68,089 describe the county. The county's voting pattern over the last decade is most similar to that of Cayuga County and Madison County.
The counties whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Browse places by community — income, education, race & ethnicity, language — all community cuts →
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Seneca County, New York. Akashic. https://akashic.app/county/36099/. Accessed May 20, 2026. License: CC BY 4.0.