A Heaping Spoonful of Allegheny County Political Data
@acpoldata.bsky.social
Data posted whenever the spirit is moved to do so.
PA election law stipulates that election districts ideally contain between 100 and 1,200 registered voters. McKeesport Ward 1 has 13 and North Fayette District 5 has 3,269.
www.legis.state.pa.us/cfdocs/legis...
www.legis.state.pa.us/cfdocs/legis...
November 9, 2025 at 4:06 PM
PA election law stipulates that election districts ideally contain between 100 and 1,200 registered voters. McKeesport Ward 1 has 13 and North Fayette District 5 has 3,269.
www.legis.state.pa.us/cfdocs/legis...
www.legis.state.pa.us/cfdocs/legis...
This map shows how voters in Allegheny County who were registered in July 2020 and November 2024 moved during that time period. Areas in red show a net out-migration while areas in green show a net in-migration. This only includes voters who were registered in Allegheny County in both years.
July 12, 2025 at 4:01 PM
This map shows how voters in Allegheny County who were registered in July 2020 and November 2024 moved during that time period. Areas in red show a net out-migration while areas in green show a net in-migration. This only includes voters who were registered in Allegheny County in both years.
Between the 2024 general election and 2025 primary, voters tended to move to Mt. Lebanon from Pittsburgh's Ward 19, Carnegie, Bethel Park and others, while voters tended to leave Mt. Lebanon for Scott, Upper St. Clair, and South Fayette, among other places.
July 9, 2025 at 2:11 AM
Between the 2024 general election and 2025 primary, voters tended to move to Mt. Lebanon from Pittsburgh's Ward 19, Carnegie, Bethel Park and others, while voters tended to leave Mt. Lebanon for Scott, Upper St. Clair, and South Fayette, among other places.
This shows the parties preferred by new voters in Allegheny County who registered between the 2024 General and 2025 Primary.
Blue means more Democrats than Republicans/Independents
Red means more Republicans than Democrats/Independents
Yellow means more Independents than Democrats/Republicans
Blue means more Democrats than Republicans/Independents
Red means more Republicans than Democrats/Independents
Yellow means more Independents than Democrats/Republicans
July 6, 2025 at 10:54 PM
This shows the parties preferred by new voters in Allegheny County who registered between the 2024 General and 2025 Primary.
Blue means more Democrats than Republicans/Independents
Red means more Republicans than Democrats/Independents
Yellow means more Independents than Democrats/Republicans
Blue means more Democrats than Republicans/Independents
Red means more Republicans than Democrats/Independents
Yellow means more Independents than Democrats/Republicans
How party registration changed between the 2024 general and 2025 primary
% of Democrats went up in Blue, Green, and Purple areas, down in others
% of Republicans went up in Red, Orange, and Purple areas, down in others
% of Independents went up in Yellow, Green, and Orange areas, down in others
% of Democrats went up in Blue, Green, and Purple areas, down in others
% of Republicans went up in Red, Orange, and Purple areas, down in others
% of Independents went up in Yellow, Green, and Orange areas, down in others
July 6, 2025 at 10:37 PM
How party registration changed between the 2024 general and 2025 primary
% of Democrats went up in Blue, Green, and Purple areas, down in others
% of Republicans went up in Red, Orange, and Purple areas, down in others
% of Independents went up in Yellow, Green, and Orange areas, down in others
% of Democrats went up in Blue, Green, and Purple areas, down in others
% of Republicans went up in Red, Orange, and Purple areas, down in others
% of Independents went up in Yellow, Green, and Orange areas, down in others
Dennis Very finished 22nd in the county, and 22nd or close to it in almost all areas south of the Ohio and Allegheny rivers. North of that, though, he did much better, but rarely in the top eight.
June 20, 2025 at 1:51 AM
Dennis Very finished 22nd in the county, and 22nd or close to it in almost all areas south of the Ohio and Allegheny rivers. North of that, though, he did much better, but rarely in the top eight.
Jackie Obara was very strong in Elizabeth Twp, Forward, and the surrounding areas, but didn't finish as strongly beyond.
June 20, 2025 at 1:48 AM
Jackie Obara was very strong in Elizabeth Twp, Forward, and the surrounding areas, but didn't finish as strongly beyond.
Elizabeth Hughes did quite well in Turtle Creek and areas like southern Monroeville and North Braddock, plus she had decent support in eastern suburban areas between the rivers.
June 20, 2025 at 1:45 AM
Elizabeth Hughes did quite well in Turtle Creek and areas like southern Monroeville and North Braddock, plus she had decent support in eastern suburban areas between the rivers.
Mike Sullivan's results were similar to Wheatley's, though somewhat less concentrated in Mt. Lebanon.
June 20, 2025 at 1:43 AM
Mike Sullivan's results were similar to Wheatley's, though somewhat less concentrated in Mt. Lebanon.
Hilary Wheatley did relatively well in Mt. Lebanon and some surrounding areas.
June 20, 2025 at 1:41 AM
Hilary Wheatley did relatively well in Mt. Lebanon and some surrounding areas.
Craig Stephens did very well in Scott, Collier, Green Tree, and some surrounding areas, but less so everywhere else.
June 20, 2025 at 1:41 AM
Craig Stephens did very well in Scott, Collier, Green Tree, and some surrounding areas, but less so everywhere else.
Ilan Zur did well in the 14th ward of Pittsburgh but that's it.
June 20, 2025 at 1:36 AM
Ilan Zur did well in the 14th ward of Pittsburgh but that's it.
Bryan Neft rarely finished in the top eight, managing to do so in portions of the South Hills and in the 14th ward, but not anywhere else.
June 20, 2025 at 1:33 AM
Bryan Neft rarely finished in the top eight, managing to do so in portions of the South Hills and in the 14th ward, but not anywhere else.
Sarra Terry was strongest in Ross with a good showing in West Deer, Shaler, and Kennedy, while weakest in Pittsburgh and the eastern and southern portions of the county.
June 20, 2025 at 1:32 AM
Sarra Terry was strongest in Ross with a good showing in West Deer, Shaler, and Kennedy, while weakest in Pittsburgh and the eastern and southern portions of the county.
Carmen Robinson perhaps had the starkest difference between places she did well and places she did not -- very strong in the 3rd, 5th, 12th, and 13th wards, portions of the North Side, Penn Hills, McKeesport, Clairton, and the lower Mon Valley, while finishing near the bottom nearly everywhere else.
June 20, 2025 at 1:29 AM
Carmen Robinson perhaps had the starkest difference between places she did well and places she did not -- very strong in the 3rd, 5th, 12th, and 13th wards, portions of the North Side, Penn Hills, McKeesport, Clairton, and the lower Mon Valley, while finishing near the bottom nearly everywhere else.
Michele Santicola did best in Moon and the West Hills, where she is best known. She did not do well in Pittsburgh, but notably better, of generally below eighth, in the remaining suburban areas.
June 20, 2025 at 1:24 AM
Michele Santicola did best in Moon and the West Hills, where she is best known. She did not do well in Pittsburgh, but notably better, of generally below eighth, in the remaining suburban areas.
Amy Mathieu's results were very similar to those of Leiggi, doing well within Pittsburgh but less so in the rest of the county. The major difference is Leiggi did decently well in the 14th ward, while Mathieu did not.
June 20, 2025 at 1:22 AM
Amy Mathieu's results were very similar to those of Leiggi, doing well within Pittsburgh but less so in the rest of the county. The major difference is Leiggi did decently well in the 14th ward, while Mathieu did not.
Lauren Leiggi did best among those who did well within the city of Pittsburgh but not outside of it.
June 20, 2025 at 1:19 AM
Lauren Leiggi did best among those who did well within the city of Pittsburgh but not outside of it.
Alyssa Cowan is the highest finisher among those who did not win the primary. Her strongest showings were in the areas north and south of Hampton and the 7th and 14th wards of Pittsburgh.
June 20, 2025 at 1:17 AM
Alyssa Cowan is the highest finisher among those who did not win the primary. Her strongest showings were in the areas north and south of Hampton and the 7th and 14th wards of Pittsburgh.
Matt Rudzki finished eighth in the county as a whole, doing very well in the northern parts of the Allegheny Valley, but frequently finishing below eighth outside of the North Hills. He also did well in the area around Edgewood, Plum, and portions of Moon.
June 20, 2025 at 1:14 AM
Matt Rudzki finished eighth in the county as a whole, doing very well in the northern parts of the Allegheny Valley, but frequently finishing below eighth outside of the North Hills. He also did well in the area around Edgewood, Plum, and portions of Moon.
Jaime Hickton did very well in her home area around Baldwin Borough and Whitehall, and generally finished in the top eight throughout much of the suburban areas, but it is here that you begin to see candidates do very well in one area but finish below eighth in large portions elsewhere.
June 20, 2025 at 1:11 AM
Jaime Hickton did very well in her home area around Baldwin Borough and Whitehall, and generally finished in the top eight throughout much of the suburban areas, but it is here that you begin to see candidates do very well in one area but finish below eighth in large portions elsewhere.
Heather Schmidt Bresnahan did very well in Dormont and surrounding areas, and was the only candidate to win districts in Miller's House seat other than Miller himself. She did broadly well in the suburban parts of the county and the southern portion of the city of Pittsburgh.
June 20, 2025 at 12:03 AM
Heather Schmidt Bresnahan did very well in Dormont and surrounding areas, and was the only candidate to win districts in Miller's House seat other than Miller himself. She did broadly well in the suburban parts of the county and the southern portion of the city of Pittsburgh.
Anthony DeLuca did well in the South Hills (where he lives) and the eastern periphery of the county, though less well in the city north of the Monongahela and Ohio rivers.
June 20, 2025 at 12:01 AM
Anthony DeLuca did well in the South Hills (where he lives) and the eastern periphery of the county, though less well in the city north of the Monongahela and Ohio rivers.
Julie Capone was dominant in the entire northeastern part of the county, plus the westernmost and southeasternmost parts.
June 19, 2025 at 11:59 PM
Julie Capone was dominant in the entire northeastern part of the county, plus the westernmost and southeasternmost parts.
Quita Bridges was very strong in the northern part of the Ohio Valley, where she lives, and also did very well in the city and eastern suburbs.
June 19, 2025 at 11:57 PM
Quita Bridges was very strong in the northern part of the Ohio Valley, where she lives, and also did very well in the city and eastern suburbs.