Ohio 1st Congressional District
Akashic| Year | Margin (D minus R) |
|---|---|
| 2008 | −1.4% |
| 2012 | −3.6% |
| 2016 | −3.2% |
| 2020 | +0.2% |
| 2024 | −2.6% |
Federal officeholders only. State and local officeholders are planned for the next data pass.
U.S. House
Each result reflects the U.S. House district as it was drawn for that election; redistricting has redrawn these lines over time, so they can differ from the current 120th-Congress district shown on the map above.
| Year | District | Won | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | 1 | D | 54.6%213,916 | 45.4%177,993 | 391,909 |
| 2022 | 1 | D | 52.8%156,416 | 47.2%140,058 | 296,474 |
| 2020 | 1 | R | 44.6%172,022 | 51.8%199,560 | 385,285 |
| 2018 | 1 | R | 46.9%141,118 | 51.3%154,409 | 300,871 |
| 2016 | 1 | R | 40.8%144,644 | 59.2%210,014 | 354,788 |
| 2014 | 1 | R | 36.8%72,604 | 63.2%124,779 | 197,383 |
| 2012 | 1 | R | 37.6%131,490 | 57.7%201,907 | 349,716 |
| 2010 | 1 | R | 46.0%92,672 | 51.5%103,770 | 201,518 |
| 2008 | 1 | D | 52.5%155,455 | 47.5%140,683 | 296,290 |
| 2006 | 1 | R | 47.8%96,584 | 52.2%105,680 | 202,264 |
| 2004 | 1 | R | 40.1%116,235 | 59.8%173,430 | 289,863 |
| 2002 | 1 | R | 35.2%60,168 | 64.8%110,760 | 170,928 |
| 2000 | 1 | R | 44.6%98,328 | 53.0%116,768 | 220,428 |
| 1998 | 1 | R | 47.0%82,003 | 53.0%92,421 | 174,424 |
| 1996 | 1 | R | 43.4%94,719 | 54.2%118,324 | 218,424 |
| 1994 | 1 | R | 43.9%72,822 | 56.1%92,997 | 165,819 |
| 1992 | 1 | D | 51.3%120,190 | 0.0%0 | 234,433 |
| 1990 | 1 | D | 51.1%83,932 | 48.9%80,362 | 164,294 |
| 1988 | 1 | D | 56.5%117,682 | 43.5%90,738 | 208,420 |
| 1986 | 1 | D | 61.7%90,477 | 38.3%56,100 | 146,577 |
| 1984 | 1 | D | 55.1%121,577 | 40.3%88,859 | 220,658 |
| 1982 | 1 | D | 63.5%99,143 | 33.7%52,658 | 156,187 |
| 1980 | 1 | R | 23.2%38,529 | 74.7%124,080 | 166,180 |
| 1978 | 1 | R | 33.9%38,669 | 64.5%73,593 | 114,169 |
| 1976 | 1 | R | 33.6%56,995 | 64.8%109,789 | 169,516 |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | R | 46.5%2,650,949 | 50.1%2,857,383 | 5,704,620 |
| 2022 | R | 46.9%1,939,489 | 53.0%2,192,114 | 4,133,342 |
| 2018 | D | 53.4%2,355,923 | 46.6%2,053,963 | 4,409,886 |
| 2016 | R | 37.2%1,996,908 | 58.0%3,118,567 | 5,374,053 |
| 2012 | D | 50.7%2,762,690 | 44.7%2,435,712 | 5,449,018 |
| 2010 | R | 39.4%1,503,297 | 56.9%2,168,742 | 3,814,450 |
| 2006 | D | 56.2%2,257,369 | 43.8%1,761,037 | 4,018,406 |
| 2004 | R | 36.1%1,961,171 | 63.9%3,464,356 | 5,425,527 |
| 2000 | R | 35.9%1,595,066 | 59.9%2,665,512 | 4,448,015 |
| 1998 | R | 43.5%1,482,054 | 56.5%1,922,087 | 3,404,141 |
| 1994 | R | 39.2%1,348,213 | 53.4%1,836,556 | 3,436,800 |
| 1992 | D | 51.0%2,444,419 | 42.3%2,028,300 | 4,793,953 |
| 1988 | D | 57.0%2,480,038 | 43.0%1,872,716 | 4,352,754 |
| 1986 | D | 62.5%1,949,208 | 37.5%1,171,893 | 3,121,101 |
| 1982 | D | 56.7%1,923,767 | 41.1%1,396,790 | 3,395,463 |
| 1980 | D | 69.5%2,770,786 | 28.6%1,137,695 | 3,984,893 |
| 1976 | D | 49.5%1,941,113 | 46.5%1,823,774 | 3,920,613 |
Ohio's 1st anchors on Hamilton County, where Cincinnati's urban core is offset by conservative suburban and exurban precincts — a tension that has steadily widened the Republican margin over the past three election cycles.
Across the recorded series it reached a Democratic high of 0.2 points in 2020 and a Republican high of 3.6 points in 2012. Between 2020 and 2024 the district moved 2.8 points toward the Republican candidate; the 2024 margin was 2.6 points.
A population of 786,934, a 70% non-Hispanic-white share, and a median household income of $79,422 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 10 and Congressional District 5.
The congressional districts 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.
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 →
Ohio 1st Congressional District. Akashic. https://akashic.app/cd/3901/. Accessed May 20, 2026. License: CC BY 4.0.