Union County, Ohio
Precinct data
Results by precinct
98 precincts · 37,288 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -JEROME 6JEROME 6 | 798 | 780 | 9 | 1,587 | 50.3% | 49.1% | D+1.1 |
|---|---|---|---|---|---|---|---|
| Precinct -JEROME 3JEROME 3 | 699 | 658 | 7 | 1,364 | 51.2% | 48.2% | D+3.0 |
| Precinct -DUBLIN CITY 2DUBLIN CITY 2 | 720 | 495 | 9 | 1,224 | 58.8% | 40.4% | D+18.4 |
| Precinct -JEROME 4JEROME 4 | 523 | 539 | 4 | 1,066 | 49.1% | 50.6% | R+1.5 |
| Precinct -PARISPARIS | 290 | 750 | 15 | 1,055 | 27.5% | 71.1% | R+43.6 |
| Precinct -MARYSVILLE 15MARYSVILLE 15 | 394 | 587 | 11 | 992 | 39.7% | 59.2% | R+19.5 |
| Precinct -MARYSVILLE 13MARYSVILLE 13 | 340 | 645 | 5 | 990 | 34.3% | 65.2% | R+30.8 |
| Precinct -ALLEN 2ALLEN 2 | 228 | 711 | 16 | 955 | 23.9% | 74.5% | R+50.6 |
| Precinct -MARYSVILLE 6MARYSVILLE 6 | 373 | 521 | 14 | 908 | 41.1% | 57.4% | R+16.3 |
| Precinct -MARYSVILLE 9MARYSVILLE 9 | 361 | 539 | 8 | 908 | 39.8% | 59.4% | R+19.6 |
| Precinct -PRECINCT MARYSVILLE 16PRECINCT MARYSVILLE 16 | 368 | 525 | 10 | 903 | 40.8% | 58.1% | R+17.4 |
| Precinct -MARYSVILLE 14MARYSVILLE 14 | 350 | 537 | 4 | 891 | 39.3% | 60.3% | R+21.0 |
| Precinct -MILLCREEKMILLCREEK | 246 | 611 | 16 | 873 | 28.2% | 70.0% | R+41.8 |
| Precinct -MARYSVILLE 1MARYSVILLE 1 | 303 | 518 | 9 | 830 | 36.5% | 62.4% | R+25.9 |
| Precinct -DARBY 2DARBY 2 | 242 | 569 | 8 | 819 | 29.5% | 69.5% | R+39.9 |
| Precinct -DARBY 1DARBY 1 | 186 | 611 | 6 | 803 | 23.2% | 76.1% | R+52.9 |
| Precinct -LEESBURGLEESBURG | 194 | 604 | 4 | 802 | 24.2% | 75.3% | R+51.1 |
| Precinct -DOVER 2DOVER 2 | 232 | 540 | 8 | 780 | 29.7% | 69.2% | R+39.5 |
| Precinct -YORKYORK | 149 | 612 | 10 | 771 | 19.3% | 79.4% | R+60.1 |
| Precinct -PRECINCT MARYSVILLE 17PRECINCT MARYSVILLE 17 | 282 | 474 | 8 | 764 | 36.9% | 62.0% | R+25.1 |
| Precinct -MARYSVILLE 5MARYSVILLE 5 | 294 | 449 | 7 | 750 | 39.2% | 59.9% | R+20.7 |
| Precinct -CLAIBOURNECLAIBOURNE | 145 | 601 | 3 | 749 | 19.4% | 80.2% | R+60.9 |
| Precinct -JEROME 2JEROME 2 | 340 | 399 | 6 | 745 | 45.6% | 53.6% | R+7.9 |
| Precinct -DUBLIN CITY 1DUBLIN CITY 1 | 365 | 362 | 7 | 734 | 49.7% | 49.3% | D+0.4 |
| Precinct -PRECINCT DUBLIN CITY 3PRECINCT DUBLIN CITY 3 | 321 | 403 | 5 | 729 | 44.0% | 55.3% | R+11.2 |
| Precinct -MARYSVILLE 8MARYSVILLE 8 | 259 | 443 | 17 | 719 | 36.0% | 61.6% | R+25.6 |
| Precinct -MARYSVILLE 2MARYSVILLE 2 | 285 | 429 | 3 | 717 | 39.7% | 59.8% | R+20.1 |
| Precinct -PRECINCT JEROME 7PRECINCT JEROME 7 | 213 | 476 | 9 | 698 | 30.5% | 68.2% | R+37.7 |
| Precinct -LIBERTY 2LIBERTY 2 | 161 | 520 | 12 | 693 | 23.2% | 75.0% | R+51.8 |
| Precinct -ALLEN 1ALLEN 1 | 167 | 518 | 3 | 688 | 24.3% | 75.3% | R+51.0 |
| Precinct -JEROME 5JEROME 5 | 191 | 474 | 9 | 674 | 28.3% | 70.3% | R+42.0 |
| Precinct -MARYSVILLE 3MARYSVILLE 3 | 235 | 415 | 4 | 654 | 35.9% | 63.5% | R+27.5 |
| Precinct -MARYSVILLE 12MARYSVILLE 12 | 201 | 411 | 13 | 625 | 32.2% | 65.8% | R+33.6 |
| Precinct -MARYSVILLE 4MARYSVILLE 4 | 197 | 407 | 9 | 613 | 32.1% | 66.4% | R+34.3 |
| Precinct -DOVER 1DOVER 1 | 170 | 434 | 6 | 610 | 27.9% | 71.1% | R+43.3 |
| Precinct -UNIONUNION | 163 | 438 | 3 | 604 | 27.0% | 72.5% | R+45.5 |
| Precinct -MARYSVILLE 11MARYSVILLE 11 | 201 | 381 | 6 | 588 | 34.2% | 64.8% | R+30.6 |
| Precinct -LIBERTY 1LIBERTY 1 | 109 | 450 | 9 | 568 | 19.2% | 79.2% | R+60.0 |
| Precinct -MARYSVILLE 10MARYSVILLE 10 | 203 | 349 | 8 | 560 | 36.3% | 62.3% | R+26.1 |
| Precinct -TAYLOR 2TAYLOR 2 | 134 | 408 | 2 | 544 | 24.6% | 75.0% | R+50.4 |
| Precinct -MARYSVILLE 7MARYSVILLE 7 | 204 | 319 | 9 | 532 | 38.3% | 60.0% | R+21.6 |
| Precinct -PRECINCT MARYSVILLE 18PRECINCT MARYSVILLE 18 | 196 | 329 | 4 | 529 | 37.1% | 62.2% | R+25.1 |
| Precinct -JACKSONJACKSON | 73 | 437 | 6 | 516 | 14.1% | 84.7% | R+70.5 |
| Precinct -JEROME 1JEROME 1 | 165 | 344 | 3 | 512 | 32.2% | 67.2% | R+35.0 |
| Precinct -RICHWOOD 2RICHWOOD 2 | 92 | 390 | 2 | 484 | 19.0% | 80.6% | R+61.6 |
| Precinct -RICHWOOD 1RICHWOOD 1 | 117 | 355 | 4 | 476 | 24.6% | 74.6% | R+50.0 |
| Precinct -WASHINGTONWASHINGTON | 101 | 365 | 3 | 469 | 21.5% | 77.8% | R+56.3 |
| Precinct -PLAIN CITYPLAIN CITY | 140 | 289 | 10 | 439 | 31.9% | 65.8% | R+33.9 |
| Precinct -TAYLOR 1TAYLOR 1 | 103 | 290 | 3 | 396 | 26.0% | 73.2% | R+47.2 |
| Precinct -MILFORD CENTERMILFORD CENTER | 111 | 271 | 6 | 388 | 28.6% | 69.8% | R+41.2 |
| Voting District ALLEN 139_39159159AAN | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District ALLEN 239_39159159ABW | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District CLAIBOURNE 139_39159159AAO | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District CLAIBOURNE 239_39159159AAP | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District DARBY 139_39159159AAU | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District DARBY 239_39159159AAV | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District DARBY 339_39159159AAW | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District DOVER 139_39159159AAX | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District DOVER 239_39159159AAY | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District DUBLIN CITY 139_39159159ABX | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District DUBLIN CITY 239_39159159ABY | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District JACKSON39_39159159AAZ | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District JEROME 139_39159159ABA | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District JEROME 239_39159159ABB | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District JEROME 339_39159159ABC | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District JEROME 439_39159159ABD | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District JEROME 539_39159159ABF | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District LEESBURG39_39159159ABG | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District LIBERTY 139_39159159ABI | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District LIBERTY 239_39159159ABJ | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District MAGNETIC SPRINGS39_39159159ABH | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District MARYSVILLE 139_39159159AAA | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District MARYSVILLE 1039_39159159AAH | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District MARYSVILLE 1139_39159159AAI | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District MARYSVILLE 1239_39159159AAE | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District MARYSVILLE 1339_39159159AAB | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District MARYSVILLE 1439_39159159ABV | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District MARYSVILLE 239_39159159AAF | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District MARYSVILLE 339_39159159AAG | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District MARYSVILLE 439_39159159AAC | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District MARYSVILLE 539_39159159AAK | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District MARYSVILLE 639_39159159AAJ | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District MARYSVILLE 739_39159159AAL | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District MARYSVILLE 839_39159159AAM | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District MARYSVILLE 939_39159159AAD | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District MILFORD CENTER39_39159159ABQ | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District MILLCREEK39_39159159ABK | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District PARIS 139_39159159ABL | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District PARIS 239_39159159ABM | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District PLAIN CITY39_39159159ABE | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District RICHWOOD 139_39159159AAQ | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District RICHWOOD 239_39159159AAS | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District TAYLOR 139_39159159ABO | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District TAYLOR 239_39159159ABP | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District UNION 139_39159159ABR | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District UNION 239_39159159ABS | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District WASHINGTON39_39159159ABT | 0 | 0 | 0 | 0 | — | — | Even |
| Voting District YORK39_39159159ABU | 0 | 0 | 0 | 0 | — | — | Even |
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −17.1% |
| 1896 | −11.8% |
| 1900 | −17.5% |
| 1904 | −30.1% |
| 1908 | −16.0% |
| 1912 | +5.4% |
| 1916 | −7.2% |
| 1920 | −33.0% |
| 1924 | −32.0% |
| 1928 | −41.9% |
| 1932 | +0.3% |
| 1936 | −4.7% |
| 1940 | −29.3% |
| 1944 | −40.8% |
| 1948 | −30.8% |
| 1952 | −46.4% |
| 1956 | −48.1% |
| 1960 | −43.1% |
| 1964 | −4.9% |
| 1968 | −38.9% |
| 1972 | −53.8% |
| 1976 | −25.6% |
| 1980 | −40.6% |
| 1984 | −56.3% |
| 1988 | −47.4% |
| 1992 | −29.5% |
| 1996 | −22.0% |
| 2000 | −38.0% |
| 2004 | −40.7% |
| 2008 | −27.9% |
| 2012 | −29.1% |
| 2016 | −37.1% |
| 2020 | −31.5% |
| 2024 | −29.6% |
U.S. Senate
Registered voters
Total registered voters, over time
| Year | Total registered |
|---|---|
| 2016 | 36,206 |
| 2018 | 38,670 |
| 2020 | 41,432 |
| 2022 | 43,579 |
| 2024 | 47,353 |
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
+1,002 net domestic migration · 2025
Net +11,712 over 2011–2025 · gain loss
Arrivals reported $102,901 in average income, against $118,949 for residents who stayed — 13% lower. (IRS SOI, 2022–23)
The places arrivals came from lean D+3.4 on average — 33 points more Democratic-leaning than Union County, OH itself (R+29.6).
Where arrivals came from lean of each source
- Franklin County, OH1,015D+28.4
- Delaware County, OH239R+6.6
- Madison County, OH125R+43.7
- Logan County, OH124R+56.2
- Champaign County, OH78R+50.7
- Marion County, OH61R+41.4
Where departures went households, 2022–23
- Franklin County, OH521
- Delaware County, OH187
- Logan County, OH159
- Marion County, OH90
- Madison County, OH83
- Champaign County, OH76
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 | +325 |
| 2012 | −659 |
| 2013 | +301 |
| 2014 | +23 |
| 2015 | +243 |
| 2016 | +815 |
| 2017 | +870 |
| 2018 | +664 |
| 2019 | +859 |
| 2021 | +1,875 |
| 2022 | +1,456 |
| 2023 | +2,378 |
| 2024 | +1,560 |
| 2025 | +1,002 |
Union County sits northwest of Columbus and has absorbed significant suburban spillover growth, yet its presidential margins have remained consistently above R+25 since 2000, suggesting new residents skew toward the county's existing political profile.
Across the recorded series it reached a Democratic high of 5.4 points in 1912 and a Republican high of 56.3 points in 1984. Between 2020 and 2024 the county moved 1.9 points toward the Democratic candidate; the 2024 margin was 29.6 points.
A population of 67,324, a 85% non-Hispanic-white share, and a median household income of $112,322 describe the county. The county's voting pattern over the last decade is most similar to that of Carroll County and Oldham 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 →
Union County, Ohio. Akashic. https://akashic.app/county/39159/. Accessed May 20, 2026. License: CC BY 4.0.