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Chester County, PA


Metropolitan Statistical Area: Philadelphia-Camden-Wilmington, PA-DE-MD-NJ
Designated Market Area: Philadelphia, PA-DE-NJ
American Communities Project County Type (2023): Exurbs

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

 

Tracts in Chester County, PA

   



Click here to view demographic data for Chester County, PA

2022 population: 545,823   ( 46,937 from 2010 , 11,415 from 2020)
Land area: 750.5 square miles
Population density: 727.2 persons per square mile

2022 Census data
White:422,822 77.47% 3.2%
Black:30,7805.64% 4.7%
Indian:6230.11% 16.4%
Asian:39,0087.15% 101.8%
2+ races:10,3071.89% 48.0%
Hispanic:42,2837.75% 30.1%
Total non-White:123,00122.53% 37.7%

2020-2022 ComponentsNumberRate
Births:12,239 11.5
Deaths:10,4039.7
Net Migration: 7,9577.4
Net Immigration: 1,5491.4
Change in White population:13,261 2.7
Change in Non-White pop.:33,676 6.8



Historical Presidential Election Results for Chester County, PA

Recent Trends
VotesΔ MarginSwing %
2024 vs. 2020 R +8,448 R +7,104 R + 2.7%
D +1,344
2020 vs. 2016 R +12,451 D +28,239 D + 7.4%
D +40,690
2020 vs. 2012 R +3,725 D +54,336 D + 17.5%
D +58,061
2020 vs. 2008 R +14,144 D +30,395 D + 8.0%
D +44,539
2016 vs. 2008 R +1,693 D +2,156 D + 0.6%
D +3,849
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 77% Kamala Harris (D) 183,716 56.7% Donald Trump (R) 137,013 42.3% 3,378 [+] 1.0% 324,107 -8 -8 4.61%
2020 75% Joe Biden (D) 182,372 57.8% Donald Trump* (R) 128,565 40.7% 4,816 [+] 1.5% 315,753 -8 -6 4.55%
2016 69% Hillary Clinton (D) 141,682 51.9% Donald Trump (R) 116,114 42.5% 15,202 [+] 5.6% 272,998 -6 -3 4.43%
2012 66% Mitt Romney (R) 124,840 49.4% Barack Obama* (D) 124,311 49.2% 3,425 [+] 1.4% 252,576 3 2 4.39%
2008 70% Barack Obama (D) 137,833 54.0% John McCain (R) 114,421 44.8% 2,998 [+] 1.2% 255,252 1 -1 4.24%
2004 67% George W. Bush* (R) 120,036 52.0% John Kerry (D) 109,708 47.5% 1,079 [+] 0.5% 230,823 4 1 4.00%
2000 59% George W. Bush (R) 100,080 53.3% Albert Gore, Jr. (D) 82,047 43.7% 5,549 [+] 3.0% 187,676 7 5 3.82%
1996 52% Robert Dole (R) 77,029 48.6% Bill Clinton* (D) 64,783 40.9% 16,554 [+] 10.5% 158,366 9 8 3.51%
1992 58% George Bush* (R) 74,002 43.7% Bill Clinton (D) 59,643 35.2% 35,563 [+] 21.0% 169,208 8 6 3.41%
1988 51% George Bush (R) 93,522 67.0% Michael Dukakis (D) 44,853 32.1% 1,210 [+] 0.9% 139,585 16 14 3.08%
1984 53% Ronald Reagan* (R) 92,221 70.1% Walter Mondale (D) 38,870 29.6% 440 0.3% 131,531 17 11 2.71%
1980 53% Ronald Reagan (R) 73,046 60.9% Jimmy Carter* (D) 34,307 28.6% 12,543 [+] 10.5% 119,896 11 10 2.63%
1976 55% Gerald Ford* (R) 67,686 60.4% Jimmy Carter (D) 42,712 38.1% 1,628 [+] 1.5% 112,026 13 12 2.42%
1972 55% Richard Nixon* (R) 72,726 68.4% George McGovern (D) 31,118 29.3% 2,415 [+] 2.3% 106,259 9 8 2.31%
1968 61% Richard Nixon (R) 56,073 57.2% Hubert Humphrey (D) 32,606 33.3% 9,372 [+] 9.6% 98,051 13 14 2.07%
1964 61% Lyndon Johnson* (D) 47,940 54.1% Barry Goldwater (R) 40,280 45.5% 390 0.4% 88,610 11 7 1.84%
1960 65% Richard Nixon (R) 53,059 63.6% John Kennedy (D) 30,167 36.2% 147 0.2% 83,373 15 14 1.67%
1956 55% Dwight Eisenhower* (R) 47,225 70.2% Adlai Stevenson (D) 19,957 29.7% 50 0.1% 67,232 14 13 1.47%
1952 57% Dwight Eisenhower (R) 39,961 64.9% Adlai Stevenson (D) 21,490 34.9% 164 0.3% 61,615 12 10 1.35%
1948 46% Thomas Dewey (R) 29,258 65.8% Harry Truman* (D) 14,670 33.0% 550 [+] 1.2% 44,478 15 21 1.19%
1944 50% Thomas Dewey (R) 26,655 58.7% Franklin Roosevelt* (D) 18,548 40.8% 208 0.5% 45,411 10 13 1.20%
1940 61% Wendell Willkie (R) 28,222 55.5% Franklin Roosevelt* (D) 22,473 44.2% 174 0.3% 50,869 9 11 1.25%
1936 75% Alf Landon (R) 29,340 51.8% Franklin Roosevelt* (D) 26,676 47.1% 613 [+] 1.1% 56,629 11 15 1.37%
1932 58% Herbert Hoover* (R) 29,425 69.2% Franklin Roosevelt (D) 12,040 28.3% 1,052 [+] 2.5% 42,517 18 30 1.49%
1928 64% Herbert Hoover (R) 36,659 82.3% Al Smith (D) 7,689 17.3% 210 [+] 0.5% 44,558 17 24 1.41%
1924 44% Calvin Coolidge (R) 22,333 75.8% John Davis (D) 5,946 20.2% 1,201 [+] 4.1% 29,480 10 22 1.37%
1920 41% Warren Harding (R) 18,129 69.6% James Cox (D) 7,004 26.9% 927 [+] 3.6% 26,060 4 9 1.41%
1916 33% Charles Evans Hughes (R) 11,845 56.8% Woodrow Wilson* (D) 8,514 40.8% 505 [+] 2.4% 20,864 3 11 1.61%
1912 32% Woodrow Wilson (D) 6,901 34.9% Theodore Roosevelt (Prog) 6,596 33.3% 6,289 [+] 31.8% 19,786 6 6 1.62%
1908 35% William Taft (R) 13,118 64.1% William J. Bryan (D) 6,555 32.0% 803 [+] 3.9% 20,476 5 12 1.62%
1904 35% Theodore Roosevelt (R) 14,200 73.9% Alton Parker (D) 4,342 22.6% 673 [+] 3.5% 19,215 6 18 1.55%
1900 40% William McKinley* (R) 13,809 66.2% William J. Bryan (D) 6,214 29.8% 835 [+] 4.0% 20,858 5 15 1.78%
* incumbent         PSV: percent of state vote



2020 President, Chester County, PA
CandidateVotesPct
Joe Biden (D) 182,372 57.8%
Donald Trump* (R) 128,565 40.7%
Jo Jorgensen (Lbt) 3,565 1.1%
Other 1,251 0.4%
TOTAL 315,753
Turnout: 75% Diff (St): -8 Diff (US): -6


2016 President, Chester County, PA
CandidateVotesPct
Hillary Clinton (D) 141,682 51.9%
Donald Trump (R) 116,114 42.5%
Gary Johnson (Lbt) 7,930 2.9%
Jill Stein (Grn) 2,247 0.8%
Other 5,025 1.8%
TOTAL 272,998
Turnout: 69% Diff (St): -6 Diff (US): -3


2012 President, Chester County, PA
CandidateVotesPct
Barack Obama* (D) 124,311 49.2%
Mitt Romney (R) 124,840 49.4%
Gary Johnson (Lbt) 2,082 0.8%
Other 1,343 0.5%
TOTAL 252,576
Turnout: 66% Diff (St): 3 Diff (US): 2


2008 President, Chester County, PA
CandidateVotesPct
Barack Obama (D) 137,833 54.0%
John McCain (R) 114,421 44.8%
Ralph Nader (I) 1,230 0.5%
Bob Barr (Lbt) 870 0.3%
Other 898 0.4%
TOTAL 255,252
Turnout: 70% Diff (St): 1 Diff (US): -1


2004 President, Chester County, PA
CandidateVotesPct
George W. Bush* (R) 120,036 52.0%
John Kerry (D) 109,708 47.5%
Other 1,079 0.5%
TOTAL 230,823
Turnout: 67% Diff (St): 4 Diff (US): 1


2000 President, Chester County, PA
CandidateVotesPct
George W. Bush (R) 100,080 53.3%
Albert Gore, Jr. (D) 82,047 43.7%
Ralph Nader (Grn) 4,302 2.3%
Pat Buchanan (Ref) 314 0.2%
Other 933 0.5%
TOTAL 187,676
Turnout: 59% Diff (St): 7 Diff (US): 5


1996 President, Chester County, PA
CandidateVotesPct
Bill Clinton* (D) 64,783 40.9%
Robert Dole (R) 77,029 48.6%
Ross Perot (Ref) 14,067 8.9%
Harry Browne (Lbt) 1,942 1.2%
Other 545 0.3%
TOTAL 158,366
Turnout: 52% Diff (St): 9 Diff (US): 8


1992 President, Chester County, PA
CandidateVotesPct
Bill Clinton (D) 59,643 35.2%
George Bush* (R) 74,002 43.7%
Ross Perot (I) 34,536 20.4%
Other 1,027 0.6%
TOTAL 169,208
Turnout: 58% Diff (St): 8 Diff (US): 6


1988 President, Chester County, PA
CandidateVotesPct
George Bush (R) 93,522 67.0%
Michael Dukakis (D) 44,853 32.1%
Ron Paul (Lbt) 716 0.5%
Other 494 0.4%
TOTAL 139,585
Turnout: 51% Diff (St): 16 Diff (US): 14


1984 President, Chester County, PA
CandidateVotesPct
Ronald Reagan* (R) 92,221 70.1%
Walter Mondale (D) 38,870 29.6%
Other 440 0.3%
TOTAL 131,531
Turnout: 53% Diff (St): 17 Diff (US): 11


1980 President, Chester County, PA
CandidateVotesPct
Ronald Reagan (R) 73,046 60.9%
Jimmy Carter* (D) 34,307 28.6%
John Anderson (I) 10,911 9.1%
Edward Clark (Lbt) 937 0.8%
Other 695 0.6%
TOTAL 119,896
Turnout: 53% Diff (St): 11 Diff (US): 10


1976 President, Chester County, PA
CandidateVotesPct
Jimmy Carter (D) 42,712 38.1%
Gerald Ford* (R) 67,686 60.4%
Eugene McCarthy (I) 1,166 1.0%
Other 462 0.4%
TOTAL 112,026
Turnout: 55% Diff (St): 13 Diff (US): 12


1972 President, Chester County, PA
CandidateVotesPct
Richard Nixon* (R) 72,726 68.4%
George McGovern (D) 31,118 29.3%
John Schmitz (Amer) 2,281 2.1%
Other 134 0.1%
TOTAL 106,259
Turnout: 55% Diff (St): 9 Diff (US): 8


1968 President, Chester County, PA
CandidateVotesPct
Richard Nixon (R) 56,073 57.2%
Hubert Humphrey (D) 32,606 33.3%
George Wallace (AIP) 9,142 9.3%
Other 230 0.2%
TOTAL 98,051
Turnout: 61% Diff (St): 13 Diff (US): 14


1964 President, Chester County, PA
CandidateVotesPct
Lyndon Johnson* (D) 47,940 54.1%
Barry Goldwater (R) 40,280 45.5%
Other 390 0.4%
TOTAL 88,610
Turnout: 61% Diff (St): 11 Diff (US): 7


1960 President, Chester County, PA
CandidateVotesPct
John Kennedy (D) 30,167 36.2%
Richard Nixon (R) 53,059 63.6%
Other 147 0.2%
TOTAL 83,373
Turnout: 65% Diff (St): 15 Diff (US): 14


1956 President, Chester County, PA
CandidateVotesPct
Dwight Eisenhower* (R) 47,225 70.2%
Adlai Stevenson (D) 19,957 29.7%
Other 50 0.1%
TOTAL 67,232
Turnout: 55% Diff (St): 14 Diff (US): 13


1952 President, Chester County, PA
CandidateVotesPct
Dwight Eisenhower (R) 39,961 64.9%
Adlai Stevenson (D) 21,490 34.9%
Other 164 0.3%
TOTAL 61,615
Turnout: 57% Diff (St): 12 Diff (US): 10


1948 President, Chester County, PA
CandidateVotesPct
Harry Truman* (D) 14,670 33.0%
Thomas Dewey (R) 29,258 65.8%
Henry Wallace (Prog) 243 0.5%
Other 307 0.7%
TOTAL 44,478
Turnout: 46% Diff (St): 15 Diff (US): 21


1944 President, Chester County, PA
CandidateVotesPct
Franklin Roosevelt* (D) 18,548 40.8%
Thomas Dewey (R) 26,655 58.7%
Other 208 0.5%
TOTAL 45,411
Turnout: 50% Diff (St): 10 Diff (US): 13


1940 President, Chester County, PA
CandidateVotesPct
Franklin Roosevelt* (D) 22,473 44.2%
Wendell Willkie (R) 28,222 55.5%
Other 174 0.3%
TOTAL 50,869
Turnout: 61% Diff (St): 9 Diff (US): 11


1936 President, Chester County, PA
CandidateVotesPct
Franklin Roosevelt* (D) 26,676 47.1%
Alf Landon (R) 29,340 51.8%
William Lemke (Union) 385 0.7%
Norman Thomas (Soc) 125 0.2%
Other 103 0.2%
TOTAL 56,629
Turnout: 75% Diff (St): 11 Diff (US): 15


1932 President, Chester County, PA
CandidateVotesPct
Franklin Roosevelt (D) 12,040 28.3%
Herbert Hoover* (R) 29,425 69.2%
Norman Thomas (Soc) 879 2.1%
Other 173 0.4%
TOTAL 42,517
Turnout: 58% Diff (St): 18 Diff (US): 30


1928 President, Chester County, PA
CandidateVotesPct
Herbert Hoover (R) 36,659 82.3%
Al Smith (D) 7,689 17.3%
Norman Thomas (Soc) 116 0.3%
Other 94 0.2%
TOTAL 44,558
Turnout: 64% Diff (St): 17 Diff (US): 24


1924 President, Chester County, PA
CandidateVotesPct
Calvin Coolidge (R) 22,333 75.8%
John Davis (D) 5,946 20.2%
Robert LaFollette (Prog) 1,013 3.4%
Other 188 0.6%
TOTAL 29,480
Turnout: 44% Diff (St): 10 Diff (US): 22


1920 President, Chester County, PA
CandidateVotesPct
Warren Harding (R) 18,129 69.6%
James Cox (D) 7,004 26.9%
Eugene Debs (Soc) 277 1.1%
Parley Christiansen (FL) 37 0.1%
Aaron Watkins (Proh) 599 2.3%
Other 14 0.1%
TOTAL 26,060
Turnout: 41% Diff (St): 4 Diff (US): 9


1916 President, Chester County, PA
CandidateVotesPct
Woodrow Wilson* (D) 8,514 40.8%
Charles Evans Hughes (R) 11,845 56.8%
Allan Benson (Soc) 204 1.0%
James Hanly (Proh) 295 1.4%
Other 6 0.0%
TOTAL 20,864
Turnout: 33% Diff (St): 3 Diff (US): 11


1912 President, Chester County, PA
CandidateVotesPct
Woodrow Wilson (D) 6,901 34.9%
Theodore Roosevelt (Prog) 6,596 33.3%
William Taft* (R) 5,708 28.8%
Eugene Debs (Soc) 314 1.6%
Eugene Chafin (Proh) 263 1.3%
Other 4 0.0%
TOTAL 19,786
Turnout: 32% Diff (St): 6 Diff (US): 6


1908 President, Chester County, PA
CandidateVotesPct
William Taft (R) 13,118 64.1%
William J. Bryan (D) 6,555 32.0%
Eugene Debs (Soc) 110 0.5%
Eugene Chafin (Proh) 678 3.3%
Thomas Hisgen (I) 8 0.0%
Other 7 0.0%
TOTAL 20,476
Turnout: 35% Diff (St): 5 Diff (US): 12


1904 President, Chester County, PA
CandidateVotesPct
Theodore Roosevelt (R) 14,200 73.9%
Alton Parker (D) 4,342 22.6%
Eugene Debs (Soc) 138 0.7%
Silas Swallow (Proh) 528 2.7%
Other 7 0.0%
TOTAL 19,215
Turnout: 35% Diff (St): 6 Diff (US): 18


1900 President, Chester County, PA
CandidateVotesPct
William McKinley* (R) 13,809 66.2%
William J. Bryan (D) 6,214 29.8%
John Woolley (Proh) 788 3.8%
Eugene Debs (Soc) 31 0.1%
Other 16 0.1%
TOTAL 20,858
Turnout: 40% Diff (St): 5 Diff (US): 15
* incumbent

Historical Statewide Election Results for Chester County, PA

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

YearTypeTurnout WinnerRunner-Up OtherTotal VotesDiff PSV
2022 S3 62% John Fetterman (D) 147,559 57.2% Mehmet Oz (R) 104,020 40.3% 6,384 [+] 2.5% 257,963 -6 4.81%
2022 G 62% Josh Shapiro (D) 160,796 62.3% Doug Mastriano (R) 92,585 35.9% 4,644 [+] 1.8% 258,025 -6 4.81%
2018 S1 59% Bob Casey, Jr.* (D) 140,138 59.2% Lou Barletta (R) 92,380 39.0% 4,200 [+] 1.8% 236,718 -4 4.73%
2018 G 59% Tom Wolf* (D) 145,212 61.3% Scott Wagner (R) 87,873 37.1% 3,690 [+] 1.6% 236,775 -4 4.72%
2016 S3 68% Pat Toomey* (R) 133,662 49.4% Katie McGinty (D) 127,552 47.1% 9,588 [+] 3.5% 270,802 1 4.47%
2014 G 40% Tom Wolf (D) 80,701 51.8% Tom Corbett* (R) 75,097 48.2% 0 0.0% 155,798 3 4.46%
2012 S1 65% Bob Casey, Jr.* (D) 125,671 50.4% Tom Smith (R) 119,296 47.8% 4,598 [+] 1.8% 249,565 3 4.43%
2010 S3 46% Pat Toomey (R) 92,667 53.4% Joe Sestak (D) 80,738 46.6% 0 0.0% 173,405 2 4.36%
2010 G 46% Tom Corbett (R) 97,112 56.0% Dan Onorato (D) 76,440 44.0% 0 0.0% 173,552 1 4.35%
2006 S1 49% Bob Casey, Jr. (D) 95,293 55.0% Rick Santorum* (R) 77,948 45.0% 0 0.0% 173,241 4 4.25%
2006 G 49% Ed Rendell* (D) 112,960 65.1% Lynn Swann (R) 60,437 34.9% 0 0.0% 173,397 -5 4.23%
2004 S3 66% Arlen Specter* (R) 133,329 59.3% Joseph Hoeffel (D) 82,551 36.7% 9,016 [+] 4.0% 224,896 7 4.05%
2002 G 43% Ed Rendell (D) 81,996 57.4% Mike Fisher (R) 58,669 41.1% 2,149 [+] 1.5% 142,814 -3 3.99%
2000 S1 58% Rick Santorum* (R) 117,092 63.3% Ron Klink (D) 63,259 34.2% 4,768 [+] 2.6% 185,119 11 3.91%
1998 S3 32% Arlen Specter* (R) 71,508 70.5% Bill Lloyd (D) 24,611 24.3% 5,246 [+] 5.2% 101,365 9 3.43%
1998 G 32% Tom Ridge* (R) 68,572 67.6% Ivan Itkin (D) 21,337 21.0% 11,500 [+] 11.3% 101,409 10 3.35%
1994 S1 39% Rick Santorum (R) 68,184 58.7% Harris Wofford* (D) 42,156 36.3% 5,843 [+] 5.0% 116,183 9 3.31%
1994 G 39% Tom Ridge (R) 61,890 53.1% Mark Singel (D) 34,652 29.7% 20,019 [+] 17.2% 116,561 8 3.25%
1992 S3 58% Arlen Specter* (R) 86,581 51.8% Lynn Yeakel (D) 70,948 42.5% 9,592 [+] 5.7% 167,121 3 3.48%
1991 S1 34% Richard Thornburgh (R) 54,989 55.9% Harris Wofford (D) 43,393 44.1% 0 0.0% 98,382 11 2.91%
1990 G 33% Robert Casey* (D) 48,935 52.5% Barbara Hafer (R) 44,262 47.5% 0 0.0% 93,197 15 3.05%
1988 S1 51% John Heinz* (R) 108,419 78.7% Joseph Vignola (D) 28,025 20.3% 1,312 [+] 1.0% 137,756 12 3.15%
1986 S3 34% Arlen Specter* (R) 60,782 68.9% Bob Edgar (D) 27,010 30.6% 379 [+] 0.4% 88,171 13 2.61%
1986 G 34% William Scranton III (R) 58,518 66.6% Robert Casey (D) 28,572 32.5% 821 [+] 0.9% 87,911 18 2.59%
1982 S1 38% John Heinz* (R) 66,208 73.7% Cyril Wecht (D) 22,579 25.1% 1,048 [+] 1.2% 89,835 14 2.49%
1982 G 38% Richard Thornburgh* (R) 61,616 68.2% Allen Ertel (D) 28,111 31.1% 635 [+] 0.7% 90,362 17 2.45%
1980 S3 52% Arlen Specter (R) 81,205 68.7% Pete Flaherty (D) 35,352 29.9% 1,577 [+] 1.3% 118,134 18 2.67%
1978 G 41% Richard Thornburgh (R) 58,481 68.8% Pete Flaherty (D) 25,935 30.5% 596 [+] 0.7% 85,012 16 2.27%
1976 S1 55% John Heinz (R) 68,579 61.7% William Green (D) 41,992 37.8% 612 [+] 0.6% 111,183 9 2.45%
1974 S3 40% Richard Schweiker* (R) 49,702 63.0% Pete Flaherty (D) 28,308 35.9% 914 [+] 1.2% 78,924 10 2.27%
1974 G 40% Andrew Lewis (R) 42,948 54.0% Milton Shapp* (D) 35,835 45.0% 765 [+] 1.0% 79,548 9 2.27%
1970 S1 45% Hugh Scott* (R) 48,774 62.5% William Sesler (D) 26,045 33.4% 3,164 [+] 4.1% 77,983 11 2.14%
1970 G 45% Raymond Broderick (R) 39,723 50.8% Milton Shapp (D) 35,282 45.1% 3,175 [+] 4.1% 78,180 9 2.11%
1968 S3 60% Richard Schweiker (R) 61,503 63.5% Joseph Clark* (D) 31,893 32.9% 3,458 [+] 3.6% 96,854 12 2.09%
1966 G 50% Raymond Shafer (R) 49,920 65.7% Milton Shapp (D) 23,919 31.5% 2,122 [+] 2.8% 75,961 14 1.88%
1964 S1 61% Hugh Scott* (R) 55,348 62.3% Genevieve Blatt (D) 33,280 37.5% 198 [+] 0.2% 88,826 12 1.85%
1962 S3 55% James Van Zandt (R) 46,763 61.8% Joseph Clark* (D) 28,790 38.1% 103 [+] 0.1% 75,656 13 1.73%
1962 G 55% William Scranton (R) 50,804 67.4% Richardson Dilworth (D) 24,412 32.4% 198 [+] 0.3% 75,414 12 1.72%
*: 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 Chester County, PA

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

DateDistrictWinnerRunner-Up OtherTotal Votes
2022-11-08 PA06Chrissy Houlahan* (D) 152,301 59.0% Guy Ciarrochi (R) 105,966 41.0% 0 0.0% 258,267
County Total for 2022-11-08:   258,267
2020-11-03 PA06Chrissy Houlahan* (D) 175,681 56.2% John Emmons (R) 136,936 43.8% 0 0.0% 312,617
County Total for 2020-11-03:   312,617
2018-11-06 PA06Chrissy Houlahan (D) 139,804 59.0% Greg McCauley (R) 97,054 41.0% 0 0.0% 236,858
County Total for 2018-11-06:   236,858
2016-11-08 PA06Ryan Costello* (R) 92,513 54.4% Mike Parrish (D) 77,483 45.6% 0 0.0% 169,996
2016-11-08 PA07Patrick Meehan* (R) 32,597 62.1% Mary Ellen Balchunis (D) 19,863 37.9% 0 0.0% 52,460
2016-11-08 PA16Christina Hartman (D) 23,315 51.9% Lloyd Smucker (R) 19,920 44.3% 1,690 3.8% 44,925
County Total for 2016-11-08:   267,381
2014-11-04 PA06Ryan Costello (R) 54,685 54.8% Manan Trivedi (D) 45,021 45.2% 0 0.0% 99,706
2014-11-04 PA07Patrick Meehan* (R) 19,994 65.0% Mary Ellen Balchunis (D) 10,777 35.0% 0 0.0% 30,771
2014-11-04 PA16Joseph Pitts* (R) 12,380 50.0% Tom Houghton (D) 12,361 50.0% 0 0.0% 24,741
County Total for 2014-11-04:   155,218
2012-11-06 PA06Jim Gerlach* (R) 88,435 55.9% Manan Trivedi (D) 69,745 44.1% 0 0.0% 158,180
2012-11-06 PA07Patrick Meehan* (R) 29,766 62.2% George Badey (D) 18,098 37.8% 0 0.0% 47,864
2012-11-06 PA16Joseph Pitts* (R) 19,662 47.7% Aryanna Strader (D) 19,377 47.0% 2,166 5.3% 41,205
County Total for 2012-11-06:   247,249
2010-11-02 PA06Jim Gerlach* (R) 59,235 61.5% Manan Trivedi (D) 37,103 38.5% 0 0.0% 96,338
2010-11-02 PA07Patrick Meehan (R) 20,499 61.4% Bryan Lentz (D) 12,523 37.5% 381 1.1% 33,403
2010-11-02 PA16Joseph Pitts* (R) 25,172 57.8% Lois Herr (D) 18,381 42.2% 0 0.0% 43,553
County Total for 2010-11-02:   173,294
2008-11-04 PA06Jim Gerlach* (R) 78,604 56.1% Bob Roggio (D) 61,539 43.9% 0 0.0% 140,143
2008-11-04 PA07Joe Sestak* (D) 24,904 53.7% Craig Williams (R) 21,436 46.3% 0 0.0% 46,340
2008-11-04 PA16Joseph Pitts* (R) 31,878 51.1% Bruce Slater (D) 26,721 42.9% 3,736 6.0% 62,335
County Total for 2008-11-04:   248,818
2006-11-07 PA06Jim Gerlach* (R) 52,985 54.8% Lois Murphy (D) 43,730 45.2% 0 0.0% 96,715
2006-11-07 PA07Joe Sestak (D) 18,533 53.8% Curt Weldon* (R) 15,946 46.2% 0 0.0% 34,479
2006-11-07 PA16Joseph Pitts* (R) 21,111 50.1% Lois Herr (D) 19,102 45.3% 1,938 4.6% 42,151
County Total for 2006-11-07:   173,345
2004-11-02 PA06Jim Gerlach* (R) 70,838 56.2% Lois Murphy (D) 55,110 43.8% 0 0.0% 125,948
2004-11-02 PA07Curt Weldon* (R) 28,878 65.6% Paul Scoles (D) 14,616 33.2% 533 1.2% 44,027
2004-11-02 PA16Joseph Pitts* (R) 31,425 57.5% Lois Herr (D) 22,312 40.8% 951 1.7% 54,688
County Total for 2004-11-02:   224,663
2002-11-05 PA06Jim Gerlach (R) 46,370 58.5% Danny Wofford (D) 32,900 41.5% 0 0.0% 79,270
2002-11-05 PA07Curt Weldon* (R) 21,009 72.7% Peter Lennon (D) 7,888 27.3% 0 0.0% 28,897
2002-11-05 PA16Joseph Pitts* (R) 23,385 80.2% Will Todd (Green) 3,969 13.6% 1,822 6.2% 29,176
County Total for 2002-11-05:   137,343
2000-11-07 PA07Curt Weldon* (R) 34,924 69.2% Peter Lennon (D) 15,545 30.8% 0 0.0% 50,469
2000-11-07 PA16Joseph Pitts* (R) 82,687 62.8% Bob Yorczyk (D) 48,912 37.2% 0 0.0% 131,599
County Total for 2000-11-07:   182,068
1996-11-05 PA07Curt Weldon* (R) 31,292 70.1% John Innelli (D) 12,666 28.4% 664 1.5% 44,622
1996-11-05 PA16Joseph Pitts (R) 63,711 57.6% James Blaine (D) 42,844 38.7% 4,089 3.7% 110,644
County Total for 1996-11-05:   155,266
1994-11-08 PA07Curt Weldon* (R) 22,670 65.3% Sara Nichols (D) 12,058 34.7% 0 0.0% 34,728
1994-11-08 PA16Robert Walker* (R) 54,278 67.6% Bill Chertok (D) 26,005 32.4% 0 0.0% 80,283
County Total for 1994-11-08:   115,011
1992-11-03 PA07Curt Weldon* (R) 32,019 66.4% Frank Daly (D) 15,232 31.6% 960 2.0% 48,211
1992-11-03 PA16Robert Walker* (R) 71,739 63.2% Robert Peters (D) 41,751 36.8% 0 0.0% 113,490
County Total for 1992-11-03:   161,701
*: incumbent           sp: special election           RO: runoff election

Voter Registration Data for Chester County, PA

YearTotalRepublicanDemocratOtherR/D EdgeR/D Edge %VAPOP %
2024 396,280 157,318 39.7% 163,365 41.2% 75,597 19.1% Dem +6,047 Dem +1.5% 101%
2022 382,148 152,499 39.9% 160,226 41.9% 69,423 18.2% Dem +7,727 Dem +2.0% 91%
2020 380,363 155,397 40.9% 157,381 41.4% 67,585 17.8% Dem +1,984 Dem +0.5% 91%
2018 357,314 152,689 42.7% 141,381 39.6% 63,244 17.7% Rep +11,308 Rep +3.2% 87%
2016 354,297 155,433 43.9% 136,893 38.6% 61,971 17.5% Rep +18,540 Rep +5.2% 88%
2014 335,581 148,355 44.2% 126,551 37.7% 60,675 18.1% Rep +21,804 Rep +6.5% 85%
2012 338,177 150,867 44.6% 128,509 38.0% 58,801 17.4% Rep +22,358 Rep +6.6% 88%
2010 333,425 150,880 45.3% 128,060 38.4% 54,485 16.3% Rep +22,820 Rep +6.8% 89%
2008 325,692 150,118 46.1% 124,640 38.3% 50,934 15.6% Rep +25,478 Rep +7.8% 90%
2006 300,832 156,323 52.0% 93,460 31.1% 51,049 17.0% Rep +62,863 Rep +20.9% 85%
2004 324,747 170,419 52.5% 98,765 30.4% 55,563 17.1% Rep +71,654 Rep +22.1% 95%
2002 283,860 156,158 55.0% 81,684 28.8% 46,018 16.2% Rep +74,474 Rep +26.2% 86%
2000 293,425 163,833 55.8% 82,428 28.1% 47,164 16.1% Rep +81,405 Rep +27.7% 92%
1998 253,567 146,741 57.9% 69,763 27.5% 37,063 14.6% Rep +76,978 Rep +30.4% 81%
1996 238,782 140,617 58.9% 65,269 27.3% 32,896 13.8% Rep +75,348 Rep +31.6% 78%
1994 198,192 120,733 60.9% 53,708 27.1% 23,751 12.0% Rep +67,025 Rep +33.8% 67%
1992 198,172 120,778 60.9% 53,950 27.2% 23,444 11.8% Rep +66,828 Rep +33.7% 68%
1990 174,976 112,897 64.5% 45,534 26.0% 16,545 9.5% Rep +67,363 Rep +38.5% 62%
1988 175,424 111,892 63.8% 46,473 26.5% 17,059 9.7% Rep +65,419 Rep +37.3% 65%
1986 161,308 101,267 62.8% 44,599 27.6% 15,442 9.6% Rep +56,668 Rep +35.1% 62%
1984 167,387 103,361 61.7% 47,469 28.4% 16,557 9.9% Rep +55,892 Rep +33.4% 67%
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.