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Ohio 2012 Presidential Election Results by County

Compiled by EveryElectionResult.com's data team · Last updated 2026-09-02

In 2012, the Republican candidate won 71 of Ohio's 88 counties.

County Winner Party Votes Vote Share Margin Total Votes Cast
Adams Mitt Romney Republican 6,865 61.9% 26.1 pts 11,089
Allen Mitt Romney Republican 29,502 61.2% 24.0 pts 48,235
Ashland Mitt Romney Republican 15,519 63.8% 29.7 pts 24,330
Ashtabula Barack Obama Democratic 23,803 55.3% 12.8 pts 43,064
Athens Barack Obama Democratic 18,307 66.2% 35.3 pts 27,638
Auglaize Mitt Romney Republican 17,169 73.4% 48.4 pts 23,405
Belmont Mitt Romney Republican 16,758 53.1% 8.2 pts 31,564
Brown Mitt Romney Republican 11,916 61.4% 24.8 pts 19,392
Butler Mitt Romney Republican 105,176 61.8% 25.1 pts 170,191
Carroll Mitt Romney Republican 7,315 55.2% 13.4 pts 13,262
Champaign Mitt Romney Republican 11,045 60.0% 21.7 pts 18,421
Clark Mitt Romney Republican 31,816 49.6% 0.8 pts 64,144
Clermont Mitt Romney Republican 64,208 66.7% 35.1 pts 96,273
Clinton Mitt Romney Republican 12,009 66.2% 34.3 pts 18,144
Columbiana Mitt Romney Republican 25,251 54.8% 11.8 pts 46,051
Coshocton Mitt Romney Republican 8,390 53.3% 9.2 pts 15,739
Crawford Mitt Romney Republican 11,852 59.8% 21.9 pts 19,803
Cuyahoga Barack Obama Democratic 447,232 69.4% 39.8 pts 644,281
Darke Mitt Romney Republican 18,108 71.3% 44.4 pts 25,401
Defiance Mitt Romney Republican 10,176 55.6% 13.4 pts 18,288
Delaware Mitt Romney Republican 60,194 60.9% 23.2 pts 98,761
Erie Barack Obama Democratic 21,793 55.3% 12.3 pts 39,405
Fairfield Mitt Romney Republican 41,034 56.9% 15.5 pts 72,068
Fayette Mitt Romney Republican 6,620 60.1% 21.5 pts 11,020
Franklin Barack Obama Democratic 346,336 60.7% 22.8 pts 570,983
Fulton Mitt Romney Republican 11,738 55.2% 12.5 pts 21,268
Gallia Mitt Romney Republican 7,750 61.5% 25.4 pts 12,595
Geauga Mitt Romney Republican 30,589 60.0% 21.4 pts 50,997
Greene Mitt Romney Republican 49,819 59.7% 21.0 pts 83,490
Guernsey Mitt Romney Republican 8,993 53.5% 9.2 pts 16,814
Hamilton Barack Obama Democratic 219,927 52.5% 6.4 pts 418,894
Hancock Mitt Romney Republican 22,443 62.9% 27.7 pts 35,694
Hardin Mitt Romney Republican 7,489 60.2% 23.1 pts 12,449
Harrison Mitt Romney Republican 4,019 56.3% 15.0 pts 7,141
Henry Mitt Romney Republican 8,257 58.0% 18.3 pts 14,236
Highland Mitt Romney Republican 11,410 64.0% 30.1 pts 17,839
Hocking Mitt Romney Republican 6,285 49.4% 1.0 pts 12,728
Holmes Mitt Romney Republican 8,702 75.4% 52.8 pts 11,536
Huron Mitt Romney Republican 13,060 53.0% 8.3 pts 24,663
Jackson Mitt Romney Republican 7,904 59.1% 20.5 pts 13,381
Jefferson Mitt Romney Republican 17,034 51.5% 5.0 pts 33,069
Knox Mitt Romney Republican 17,266 60.8% 23.9 pts 28,388
Lake Mitt Romney Republican 58,744 49.6% 0.9 pts 118,404
Lawrence Mitt Romney Republican 14,651 56.7% 15.1 pts 25,833
Licking Mitt Romney Republican 45,503 55.9% 13.9 pts 81,390
Logan Mitt Romney Republican 13,633 64.5% 31.1 pts 21,137
Lorain Barack Obama Democratic 81,464 56.9% 15.4 pts 143,253
Lucas Barack Obama Democratic 136,616 65.0% 31.7 pts 210,218
Madison Mitt Romney Republican 10,342 59.0% 20.0 pts 17,517
Mahoning Barack Obama Democratic 77,059 63.5% 28.4 pts 121,310
Marion Mitt Romney Republican 14,265 52.2% 6.4 pts 27,352
Medina Mitt Romney Republican 50,418 55.5% 12.8 pts 90,783
Meigs Mitt Romney Republican 5,895 57.7% 18.3 pts 10,218
Mercer Mitt Romney Republican 16,561 76.5% 54.5 pts 21,661
Miami Mitt Romney Republican 34,606 66.6% 35.1 pts 51,936
Monroe Mitt Romney Republican 3,548 52.3% 7.6 pts 6,782
Montgomery Barack Obama Democratic 137,139 51.5% 4.6 pts 266,278
Morgan Mitt Romney Republican 3,179 51.9% 6.0 pts 6,129
Morrow Mitt Romney Republican 9,865 61.0% 24.3 pts 16,184
Muskingum Mitt Romney Republican 19,264 51.9% 6.1 pts 37,085
Noble Mitt Romney Republican 3,563 60.7% 24.4 pts 5,872
Ottawa Barack Obama Democratic 11,503 51.2% 4.3 pts 22,456
Paulding Mitt Romney Republican 5,354 58.7% 19.9 pts 9,128
Perry Mitt Romney Republican 7,627 50.9% 4.0 pts 14,984
Pickaway Mitt Romney Republican 14,037 58.2% 18.0 pts 24,123
Pike Mitt Romney Republican 5,685 49.1% 0.0 pts 11,581
Portage Barack Obama Democratic 39,453 51.7% 5.5 pts 76,239
Preble Mitt Romney Republican 13,535 67.1% 36.3 pts 20,169
Putnam Mitt Romney Republican 13,721 74.7% 51.2 pts 18,372
Richland Mitt Romney Republican 33,867 58.7% 19.4 pts 57,715
Ross Mitt Romney Republican 15,008 49.9% 1.5 pts 30,083
Sandusky Barack Obama Democratic 14,541 50.2% 2.7 pts 28,994
Scioto Mitt Romney Republican 15,492 49.7% 1.3 pts 31,161
Seneca Mitt Romney Republican 13,243 52.4% 7.5 pts 25,262
Shelby Mitt Romney Republican 17,142 71.8% 45.2 pts 23,866
Stark Barack Obama Democratic 89,432 49.3% 0.5 pts 181,477
Summit Barack Obama Democratic 153,037 57.2% 15.7 pts 267,711
Trumbull Barack Obama Democratic 61,672 60.6% 23.0 pts 101,719
Tuscarawas Mitt Romney Republican 22,242 53.4% 9.2 pts 41,613
Union Mitt Romney Republican 16,289 63.7% 29.3 pts 25,567
Van Wert Mitt Romney Republican 9,585 69.1% 40.1 pts 13,866
Vinton Mitt Romney Republican 2,856 52.2% 7.7 pts 5,467
Warren Mitt Romney Republican 76,561 69.0% 39.3 pts 111,004
Washington Mitt Romney Republican 17,284 58.6% 19.1 pts 29,499
Wayne Mitt Romney Republican 30,251 59.2% 20.5 pts 51,064
Williams Mitt Romney Republican 10,047 56.7% 15.7 pts 17,706
Wood Barack Obama Democratic 32,802 51.3% 4.8 pts 63,948
Wyandot Mitt Romney Republican 6,180 58.5% 19.3 pts 10,572

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Frequently Asked Questions

Which party won the most counties in Ohio in 2012?

The Republican candidate won 71 of Ohio's 88 counties in 2012, with 17 counties going to the other major party.

Which Ohio county had the closest presidential result in 2012?

Pike had the closest margin in Ohio in 2012, with Mitt Romney (Republican) winning by 0.0 points out of 11,581 total votes cast.

Which Ohio county had the widest presidential margin in 2012?

Mercer had the widest margin in Ohio in 2012, with Mitt Romney (Republican) winning by 54.5 points.

How many counties are included in Ohio's 2012 presidential results?

This page covers 88 counties in Ohio for the 2012 presidential election, based on MEDSL/EveryElectionResult.com county-level returns.