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Warren County, PA


Micropolitan Statistical Area: Warren, PA
Designated Market Area: Erie, PA
American Communities Project County Type (2023): Rural Middle America

Places in Warren County, PA     [Sort places by name]

 

Tracts in Warren County, PA

   



Click here to view demographic data for Warren County, PA

2024 population: 37,373   ( 1,223 from 2020)
Land area: 884.3 square miles
Population density: 42.3 persons per square mile

2024 Census data
White:35,826 95.86% 4.0%
Black:2490.67% 30.4%
Indian:1010.27% 3.1%
Asian:2180.58% 13.5%
2+ races:4211.13% 16.0%
Hispanic:5581.49% 31.6%
Total non-White:1,5474.14% 22.0%

2020-2024 ComponentsNumberRate
Births:1,472 9.5
Deaths:2,54616.5
Net Migration: -218-1.4
Net Immigration: 850.6
Change in White population:-1,502 -3.9
Change in Non-White pop.:279 0.7



Historical Presidential Election Results for Warren County, PA

Recent Trends
VotesΔ MarginSwing %
2024 vs. 2020 R +108 D +38 D + 0.7%
D +146
2024 vs. 2016 R +1,868 R +801 D + 2.0%
D +1,067
2020 vs. 2016 R +1,760 R +839 D + 1.4%
D +921
2024 vs. 2012 R +4,335 R +5,118 R + 21.8%
D -783
2016 vs. 2008 R +2,792 R +6,184 R + 35.3%
D -3,392
How to interpret this table


Click on the Year to view county-level data for that election.

YearTurnout WinnerRunner-Up OtherTotal Votes Diff
(St) 		Diff
(US) 		PSV
2024 69% Donald Trump (R) 14,345 69.0% Kamala Harris (D) 6,212 29.9% 235 [+] 1.1% 20,792 19 19 0.29%
2020 67% Donald Trump* (R) 14,237 68.9% Joe Biden (D) 6,066 29.4% 354 [+] 1.7% 20,657 20 22 0.30%
2016 58% Donald Trump (R) 12,477 67.7% Hillary Clinton (D) 5,145 27.9% 812 [+] 4.4% 18,434 20 22 0.30%
2012 53% Mitt Romney (R) 10,010 57.9% Barack Obama* (D) 6,995 40.4% 294 [+] 1.7% 17,299 11 11 0.30%
2008 56% John McCain (R) 9,685 51.9% Barack Obama (D) 8,537 45.7% 441 [+] 2.4% 18,663 8 6 0.31%
2004 58% George W. Bush* (R) 10,999 57.1% John Kerry (D) 8,044 41.7% 230 [+] 1.2% 19,273 9 6 0.33%
2000 53% George W. Bush (R) 9,290 52.9% Albert Gore, Jr. (D) 7,537 42.9% 725 [+] 4.1% 17,552 6 5 0.36%
1996 51% Bill Clinton* (D) 7,291 42.7% Robert Dole (R) 7,056 41.3% 2,720 [+] 15.9% 17,067 1 1 0.38%
1992 55% Bill Clinton (D) 6,972 37.8% George Bush* (R) 6,585 35.7% 4,869 [+] 26.4% 18,426 0 -2 0.37%
1988 47% George Bush (R) 8,991 56.2% Michael Dukakis (D) 6,790 42.5% 214 [+] 1.3% 15,995 6 3 0.35%
1984 51% Ronald Reagan* (R) 10,838 62.9% Walter Mondale (D) 6,244 36.3% 139 0.8% 17,221 10 4 0.36%
1980 47% Ronald Reagan (R) 9,165 57.4% Jimmy Carter* (D) 5,560 34.8% 1,249 [+] 7.8% 15,974 8 7 0.35%
1976 50% Gerald Ford* (R) 8,508 52.6% Jimmy Carter (D) 7,412 45.8% 250 [+] 1.5% 16,170 5 5 0.35%
1972 47% Richard Nixon* (R) 10,018 66.1% George McGovern (D) 4,877 32.2% 272 [+] 1.8% 15,167 7 5 0.33%
1968 55% Richard Nixon (R) 8,889 55.7% Hubert Humphrey (D) 6,368 39.9% 711 [+] 4.5% 15,968 12 12 0.34%
1964 59% Lyndon Johnson* (D) 10,598 63.6% Barry Goldwater (R) 5,965 35.8% 94 0.6% 16,657 1 -3 0.35%
1960 66% Richard Nixon (R) 11,611 63.8% John Kennedy (D) 6,525 35.9% 59 0.3% 18,195 15 14 0.36%
1956 58% Dwight Eisenhower* (R) 12,145 72.9% Adlai Stevenson (D) 4,463 26.8% 43 0.3% 16,651 16 16 0.36%
1952 58% Dwight Eisenhower (R) 11,555 71.5% Adlai Stevenson (D) 4,442 27.5% 153 0.9% 16,150 19 16 0.35%
1948 48% Thomas Dewey (R) 8,378 65.4% Harry Truman* (D) 4,103 32.0% 333 [+] 2.6% 12,814 14 20 0.34%
1944 52% Thomas Dewey (R) 9,276 67.0% Franklin Roosevelt* (D) 4,440 32.1% 137 1.0% 13,853 19 21 0.37%
1940 64% Wendell Willkie (R) 11,016 65.0% Franklin Roosevelt* (D) 5,825 34.4% 97 0.6% 16,938 19 20 0.42%
1936 78% Alf Landon (R) 9,440 50.3% Franklin Roosevelt* (D) 8,495 45.3% 832 [+] 4.4% 18,767 9 14 0.45%
1932 58% Herbert Hoover* (R) 7,872 57.2% Franklin Roosevelt (D) 5,254 38.2% 627 [+] 4.6% 13,753 6 18 0.48%
1928 65% Herbert Hoover (R) 12,077 80.2% Al Smith (D) 2,835 18.8% 144 [+] 1.0% 15,056 15 22 0.48%
1924 53% Calvin Coolidge (R) 8,502 70.9% John Davis (D) 2,161 18.0% 1,323 [+] 11.0% 11,986 6 17 0.56%
1920 53% Warren Harding (R) 7,791 65.1% James Cox (D) 2,180 18.2% 2,003 [+] 16.7% 11,974 -1 5 0.65%
1916 32% Charles Evans Hughes (R) 3,413 47.8% Woodrow Wilson* (D) 2,628 36.8% 1,100 [+] 15.4% 7,141 -6 2 0.55%
1912 32% Theodore Roosevelt (Prog) 2,934 40.4% Woodrow Wilson (D) 1,686 23.2% 2,638 [+] 36.3% 7,258 -1 -2 0.60%
1908 35% William Taft (R) 4,672 62.0% William J. Bryan (D) 2,054 27.3% 806 [+] 10.7% 7,532 3 10 0.60%
1904 32% Theodore Roosevelt (R) 4,737 68.6% Alton Parker (D) 1,222 17.7% 949 [+] 13.7% 6,908 1 12 0.56%
1900 40% William McKinley* (R) 5,609 64.9% William J. Bryan (D) 2,500 28.9% 536 [+] 6.2% 8,645 4 13 0.74%
* incumbent         PSV: percent of state vote

Historical Statewide Election Results for Warren County, PA

Click on the Year to view county-level data for that election.

YearTypeTurnout WinnerRunner-Up OtherTotal VotesDiff PSV
2024 S1 69% Dave McCormick (R) 13,655 66.1% Bob Casey, Jr.* (D) 6,415 31.0% 597 [+] 2.9% 20,667 17 0.30%
2022 S3 53% Mehmet Oz (R) 10,175 63.2% John Fetterman (D) 5,420 33.7% 497 [+] 3.1% 16,092 17 0.30%
2022 G 53% Doug Mastriano (R) 9,704 60.4% Josh Shapiro (D) 6,032 37.5% 329 [+] 2.0% 16,065 19 0.30%
2018 S1 46% Lou Barletta (R) 8,734 60.8% Bob Casey, Jr.* (D) 5,390 37.5% 245 [+] 1.7% 14,369 18 0.29%
2018 G 46% Scott Wagner (R) 8,766 60.5% Tom Wolf* (D) 5,447 37.6% 270 [+] 1.9% 14,483 20 0.29%
2016 S3 57% Pat Toomey* (R) 12,130 66.6% Katie McGinty (D) 5,124 28.1% 958 [+] 5.3% 18,212 18 0.30%
2014 G 35% Tom Corbett* (R) 6,194 55.5% Tom Wolf (D) 4,965 44.5% 0 0.0% 11,159 10 0.32%
2012 S1 52% Tom Smith (R) 10,136 59.4% Bob Casey, Jr.* (D) 6,432 37.7% 483 [+] 2.8% 17,051 15 0.30%
2010 S3 37% Pat Toomey (R) 7,615 62.9% Joe Sestak (D) 4,493 37.1% 0 0.0% 12,108 12 0.30%
2010 G 37% Tom Corbett (R) 8,194 67.2% Dan Onorato (D) 3,996 32.8% 0 0.0% 12,190 13 0.31%
2006 S1 39% Bob Casey, Jr. (D) 6,677 51.4% Rick Santorum* (R) 6,325 48.6% 0 0.0% 13,002 7 0.32%
2006 G 40% Ed Rendell* (D) 7,278 55.5% Lynn Swann (R) 5,846 44.5% 0 0.0% 13,124 5 0.32%
2004 S3 55% Arlen Specter* (R) 11,432 63.0% Joseph Hoeffel (D) 5,280 29.1% 1,439 [+] 7.9% 18,151 10 0.33%
2002 G 36% Mike Fisher (R) 6,823 57.2% Ed Rendell (D) 4,823 40.4% 278 [+] 2.3% 11,924 13 0.33%
2000 S1 48% Rick Santorum* (R) 9,973 62.4% Ron Klink (D) 5,565 34.8% 440 [+] 2.8% 15,978 10 0.34%
1998 S3 31% Arlen Specter* (R) 6,784 65.6% Bill Lloyd (D) 2,935 28.4% 618 [+] 6.0% 10,337 4 0.35%
1998 G 33% Tom Ridge* (R) 6,760 60.7% Ivan Itkin (D) 2,301 20.7% 2,074 [+] 18.6% 11,135 3 0.37%
1994 S1 42% Rick Santorum (R) 8,233 58.3% Harris Wofford* (D) 5,386 38.1% 511 [+] 3.6% 14,130 9 0.40%
1994 G 44% Tom Ridge (R) 9,194 62.5% Mark Singel (D) 3,643 24.7% 1,883 [+] 12.8% 14,720 17 0.41%
1992 S3 52% Arlen Specter* (R) 8,471 48.5% Lynn Yeakel (D) 8,211 47.1% 766 [+] 4.4% 17,448 -1 0.36%
1991 S1 38% Richard Thornburgh (R) 6,684 51.6% Harris Wofford (D) 6,263 48.4% 0 0.0% 12,947 7 0.38%
1990 G 40% Robert Casey* (D) 9,260 69.0% Barbara Hafer (R) 4,153 31.0% 0 0.0% 13,413 -1 0.44%
1988 S1 45% John Heinz* (R) 11,003 73.0% Joseph Vignola (D) 3,840 25.5% 230 [+] 1.5% 15,073 7 0.35%
1986 S3 38% Arlen Specter* (R) 8,237 63.3% Bob Edgar (D) 4,672 35.9% 109 [+] 0.8% 13,018 7 0.39%
1986 G 39% William Scranton III (R) 7,641 57.4% Robert Casey (D) 5,527 41.6% 134 [+] 1.0% 13,302 9 0.39%
1982 S1 34% John Heinz* (R) 7,648 66.1% Cyril Wecht (D) 3,772 32.6% 158 [+] 1.4% 11,578 7 0.32%
1982 G 35% Richard Thornburgh* (R) 7,049 59.3% Allen Ertel (D) 4,716 39.7% 116 [+] 1.0% 11,881 8 0.32%
1980 S3 45% Arlen Specter (R) 8,827 57.6% Pete Flaherty (D) 6,229 40.7% 259 [+] 1.7% 15,315 7 0.35%
1978 G 38% Richard Thornburgh (R) 7,561 61.5% Pete Flaherty (D) 4,584 37.3% 147 [+] 1.2% 12,292 9 0.33%
1976 S1 49% John Heinz (R) 8,987 57.1% William Green (D) 6,615 42.0% 150 [+] 1.0% 15,752 5 0.35%
1974 S3 34% Richard Schweiker* (R) 6,705 61.6% Pete Flaherty (D) 3,968 36.5% 206 [+] 1.9% 10,879 9 0.31%
1974 G 35% Andrew Lewis (R) 6,669 59.9% Milton Shapp* (D) 4,285 38.5% 171 [+] 1.5% 11,125 15 0.32%
1970 S1 39% Hugh Scott* (R) 6,626 57.2% William Sesler (D) 4,780 41.3% 172 [+] 1.5% 11,578 6 0.32%
1970 G 39% Raymond Broderick (R) 5,816 49.6% Milton Shapp (D) 5,710 48.7% 203 [+] 1.7% 11,729 8 0.32%
1968 S3 54% Richard Schweiker (R) 9,284 59.5% Joseph Clark* (D) 6,196 39.7% 125 [+] 0.8% 15,605 8 0.34%
1966 G 47% Raymond Shafer (R) 8,104 60.6% Milton Shapp (D) 5,123 38.3% 139 [+] 1.0% 13,366 9 0.33%
1964 S1 58% Hugh Scott* (R) 8,804 53.4% Genevieve Blatt (D) 7,625 46.3% 57 [+] 0.3% 16,486 3 0.34%
1962 S3 52% James Van Zandt (R) 8,695 59.7% Joseph Clark* (D) 5,823 40.0% 55 [+] 0.4% 14,573 11 0.33%
1962 G 52% William Scranton (R) 9,445 64.7% Richardson Dilworth (D) 5,083 34.8% 59 [+] 0.4% 14,587 9 0.33%
*: incumbent               +: ran on additional party lines               Type: G: Governor; S1,S2,S3: Senate Class 1, 2 or 3
italics: special election           RO: runoff election           PSV: percent of state vote


Historical U.S. House Election Results for Warren County, PA

Click on the District to view county-level data for that election (where available).

DateDistrictWinnerRunner-Up OtherTotal Votes
2024-11-05 PA15Glenn Thompson* (R) 14,813 72.9% Zach Womer (D) 5,501 27.1% 0 0.0% 20,314
County Total for 2024-11-05:   20,314
2022-11-08 PA15Glenn Thompson* (R) 11,235 70.3% Michael Molesevich (D) 4,739 29.7% 0 0.0% 15,974
County Total for 2022-11-08:   15,974
2020-11-03 PA15Glenn Thompson* (R) 14,625 72.1% Robert Williams (D) 5,650 27.9% 0 0.0% 20,275
County Total for 2020-11-03:   20,275
2018-11-06 PA15Glenn Thompson* (R) 9,660 66.9% Susan Boser (D) 4,770 33.1% 0 0.0% 14,430
County Total for 2018-11-06:   14,430
2016-11-08 PA05Glenn Thompson* (R) 12,709 71.2% Kerith Taylor (D) 5,139 28.8% 0 0.0% 17,848
County Total for 2016-11-08:   17,848
2014-11-04 PA05Glenn Thompson* (R) 7,207 65.4% Kerith Taylor (D) 3,809 34.6% 0 0.0% 11,016
County Total for 2014-11-04:   11,016
2012-11-06 PA05Glenn Thompson* (R) 10,711 64.3% Charles Dumas (D) 5,943 35.7% 0 0.0% 16,654
County Total for 2012-11-06:   16,654
2010-11-02 PA03Mike Kelly (R) 4,806 60.8% Kathy Dahlkemper* (D) 3,094 39.2% 0 0.0% 7,900
2010-11-02 PA05Glenn Thompson* (R) 2,815 67.4% Michael Pipe (D) 1,242 29.7% 119 2.8% 4,176
County Total for 2010-11-02:   12,076
2008-11-04 PA03Philip English* (R) 6,602 56.1% Kathy Dahlkemper (D) 5,165 43.9% 0 0.0% 11,767
2008-11-04 PA05Glenn Thompson (R) 3,199 50.9% Mark McCracken (D) 2,938 46.7% 148 2.4% 6,285
County Total for 2008-11-04:   18,052
2006-11-07 PA03Philip English* (R) 4,948 59.4% Steven Porter (D) 2,596 31.2% 784 9.4% 8,328
2006-11-07 PA05John Peterson* (R) 3,035 65.2% Donald Hilliard (D) 1,621 34.8% 0 0.0% 4,656
County Total for 2006-11-07:   12,984
2004-11-02 PA03Philip English* (R) 7,967 69.2% Steven Porter (D) 3,543 30.8% 0 0.0% 11,510
2004-11-02 PA05John Peterson* (R) 4,420 93.3% Tom Martin (Libertarian) 319 6.7% 0 0.0% 4,739
County Total for 2004-11-02:   16,249
2002-11-05 PA03Philip English* (R) 4,545 83.8% Andrea Benson (Green) 881 16.2% 0 0.0% 5,426
2002-11-05 PA05John Peterson* (R) 2,881 89.9% Tom Martin (Libertarian) 324 10.1% 0 0.0% 3,205
County Total for 2002-11-05:   8,631
2000-11-07 PA05John Peterson* (R) 11,428 93.4% William Belitskus (Green) 394 3.2% 416 3.4% 12,238
County Total for 2000-11-07:   12,238
1996-11-05 PA05John Peterson (R) 10,390 63.9% Ruth Rudy (D) 5,878 36.1% 0 0.0% 16,268
County Total for 1996-11-05:   16,268
1994-11-08 PA05Bill Clinger* (R) 13,387 100.0% 0 0.0% 13,387
County Total for 1994-11-08:   13,387
1992-11-03 PA05Bill Clinger* (R) 15,875 100.0% 0 0.0% 15,875
County Total for 1992-11-03:   15,875
*: incumbent           sp: special election           RO: runoff election

Voter Registration Data for Warren County, PA

YearTotalRepublicanDemocratOtherR/D EdgeR/D Edge %VAPOP %
2025 25,278 15,185 60.1% 6,347 25.1% 3,746 14.8% Rep +8,838 Rep +35.0% 84%
2024 26,873 15,836 58.9% 6,907 25.7% 4,130 15.4% Rep +8,929 Rep +33.2% 89%
2022 26,570 15,007 56.5% 7,509 28.3% 4,054 15.3% Rep +7,498 Rep +28.2% 88%
2020 31,447 16,767 53.3% 9,706 30.9% 4,974 15.8% Rep +7,061 Rep +22.5% 104%
2018 30,191 15,369 50.9% 10,108 33.5% 4,714 15.6% Rep +5,261 Rep +17.4% 98%
2016 30,139 15,115 50.2% 10,499 34.8% 4,525 15.0% Rep +4,616 Rep +15.3% 96%
2014 29,031 13,870 47.8% 10,824 37.3% 4,337 14.9% Rep +3,046 Rep +10.5% 91%
2012 29,153 14,016 48.1% 11,124 38.2% 4,013 13.8% Rep +2,892 Rep +9.9% 90%
2010 28,629 13,637 47.6% 11,338 39.6% 3,654 12.8% Rep +2,299 Rep +8.0% 87%
2008 28,487 13,649 47.9% 11,465 40.2% 3,373 11.8% Rep +2,184 Rep +7.7% 86%
2006 27,220 13,907 51.1% 10,132 37.2% 3,181 11.7% Rep +3,775 Rep +13.9% 82%
2004 28,533 14,585 51.1% 10,613 37.2% 3,335 11.7% Rep +3,972 Rep +13.9% 86%
2002 28,107 14,469 51.5% 10,574 37.6% 3,064 10.9% Rep +3,895 Rep +13.9% 85%
2000 27,575 14,222 51.6% 10,464 37.9% 2,889 10.5% Rep +3,758 Rep +13.6% 83%
1998 26,251 13,789 52.5% 10,183 38.8% 2,279 8.7% Rep +3,606 Rep +13.7% 79%
1996 25,031 13,290 53.1% 9,753 39.0% 1,988 7.9% Rep +3,537 Rep +14.1% 75%
1994 22,059 11,746 53.2% 8,848 40.1% 1,465 6.6% Rep +2,898 Rep +13.1% 66%
1992 22,264 11,797 53.0% 9,008 40.5% 1,459 6.6% Rep +2,789 Rep +12.5% 66%
1990 21,082 11,621 55.1% 8,403 39.9% 1,058 5.0% Rep +3,218 Rep +15.3% 63%
1988 20,514 11,394 55.5% 8,052 39.3% 1,068 5.2% Rep +3,342 Rep +16.3% 61%
1986 21,864 11,878 54.3% 8,746 40.0% 1,240 5.7% Rep +3,132 Rep +14.3% 65%
1984 22,275 11,795 53.0% 9,054 40.6% 1,426 6.4% Rep +2,741 Rep +12.3% 66%
VAPOP% is the estimated percentage of voting age population that is registered.
Registration data may include "inactive" voters.   Data for each year pertains to the November elections.