2025 Pittsburgh mayoral election

2025 Pittsburgh mayoral election
November 4, 2025
	Ward results; O'Connor: 60–70% 70–80% 80–90% >90%
Mayor before election; Ed Gainey; Democratic	Elected mayor ; Corey O'Connor; Democratic

The 2025 Pittsburgh mayoral election was held on November 4, 2025, with a primary election held on May 20, 2025.^[1] Incumbent Democratic mayor Ed Gainey ran for re-election to a second term as mayor but lost in the Democratic primary to challenger Corey O'Connor,^[2] who later won the election.

Background

Ed Gainey was first elected in 2021, winning 70.8% of the vote against Republican Tony Moreno. Gainey was considered to be at risk of losing the Democratic primary to challenger Corey O'Connor.^[3] O'Connor was heavily favored to win the general election; Pittsburgh has not elected a Republican mayor since 1929.

Democratic primary

Candidates

Nominee

Corey O'Connor, Allegheny County Controller (2022–present), former Pittsburgh city councilor (2012–2022), and son of former mayor Bob O'Connor^[4]

Defeated in primary

Ed Gainey, incumbent mayor^[5]

Endorsements

Ed Gainey

U.S. representatives

Summer Lee, U.S. Representative from Pennsylvania's 12th congressional district (2023–present)^[6]

State representatives

Aerion Abney, 19th district (2022–present)^[7]
Jessica Benham, 36th district (2021–present)^[7]
Emily Kinkead, 20th district (2021–present)^[7]
La'Tasha Mayes, 24th district (2023–present)^[7]

County officials

Bethany Hallam, at-large Allegheny County Councilor (2020–present)^[7]
Sara Innamorato, Allegheny County Executive (2024–present)^[6]
Bob Palmosina, Allegheny County Councilor from the 12th district (2018–present)^[7]

Pittsburgh city councilors

Deb Gross, 7th district (2014–present)^[6]
Daniel Lavelle, 6th district (2010–present)^[6]
Khari Mosley, 9th district (2024–present)^[6]
Barb Warwick, 5th district (2022–present)^[6]

Other local officials

Ashley Comans, at-large (2017–present) vice president of the Wilkinsburg School District Board of Directors (2023–present)^[8]
Dontae Comans, mayor of Wilkinsburg (2022–present)^[8]
Devon Taliaferro, Pittsburgh Public Schools board director from the 2nd district (2019–present)^[8]
Sylvia Wilson, Pittsburgh Public Schools board director from the 1st district (2013–present)^[8]

Labor unions

International Association of Fire Fighters Local 1^[9]
International Union of Operating Engineers Local 66^[8]
Service Employees International Union Local 668, SEIU 32BJ, and SEIU Healthcare Pennsylvania^[10]
Pittsburgh American Federation of Teachers Local 400^[11]
UNITE HERE Local 57^[11]
United Electrical, Radio and Machine Workers of America Eastern Region and Locals 506 and 618^[12]
United Food and Commercial Workers Local 1776^[11]
United Steelworkers District 10^[13]
Workers United Pennsylvania Joint Board^[11]

Organizations

Carnegie Mellon University College Democrats^[14]
Clean Water Action Pennsylvania^[15]
League of Conservation Voters of Pennsylvania^[16]
NextGen PAC^[17]
Steel City Stonewall Democrats^[6]

Political parties

Pennsylvania Working Families Party^[18]

Newspaper

New Pittsburgh Courier^[19]

Corey O'Connor

State legislators

Wayne Fontana, state senator from the 42nd district (2005–present)^[20]
Dan Frankel, state representative from the 23rd district (1998–present)^[21]

County officials

DeWitt Walton, Allegheny County Councilor from the 10th district (2015–present)^[22]

Pittsburgh mayors

Thomas J. Murphy Jr., mayor of Pittsburgh (1994-2006)^[23]

Pittsburgh city councilors

Ricky Burgess, 9th district (2008–2024)^[20]
Robert Charland, 3rd district (2024–present)^[9]
Anthony Coghill, 4th district (2018–present)^[9]
Theresa Kail-Smith, 2nd district (2009–present)^[9]
Bruce Kraus, 3rd district (2008–2024)^[20]
Erika Strassburger, 8th district (2018–present)^[9]
Bobby Wilson, 1st district (2020–present)^[9]

Labor unions

Fraternal Association of Professional Paramedics Local 1^[a]^[24]
International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers Local 3^[7]
International Brotherhood of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers and Helpers Local 154^[7]
International Brotherhood of Teamsters Locals 205 and 249^[7]
International Union of Bricklayers and Allied Craftworkers Local 9^[7]
International Union of Painters and Allied Trades District 57^[25]
Laborers' International Union of North America - Pennsylvania District Council^[7]
Pittsburgh Building Trades Council^[26]
Sheet Metal Workers' International Association Local 12^[7]
United Association Locals 27, 188, and 449^[7]

Party chapters

Allegheny County Democratic Committee^[27]

Organizations

Declined to endorse

Labor unions

Allegheny/Fayette AFL-CIO^[29]

Polling

Poll source	Date(s) administered	Sample size^[b]	Margin of error	Ed Gainey	Corey O'Connor	Undecided
Upswing Research & Strategy (D)^[30]^[A]	March 2025	402 (LV)	± 4.2%	49%	42%	9%
Lake Research Partners (D)^[31]^[B]	March 2025	500 (LV)	–	32%	50%	18%
Lake Research Partners (D)^[32]^[B]	February 6–11, 2025	500 (LV)	–	35%	47%	16%

Results

Democratic primary results^[33]
Party		Candidate	Votes	%
	Democratic	Corey O'Connor	31,666	52.59
	Democratic	Ed Gainey (incumbent)	28,355	47.09
	Write-in		189	0.31
Total votes			60,210	100.0

Republican primary

Candidates

Nominee

Tony Moreno, retired police officer and nominee for mayor in 2021^[34]

Defeated in primary

Thomas West, clothing store owner^[35]

Results

Republican primary results^[33]
Party		Candidate	Votes	%
	Republican	Tony Moreno	2,911	62.00
	Republican	Thomas West	1,247	26.56
	Write-in		537	11.44
Total votes			4,695	100.0

General election

Results

2025 Pittsburgh mayoral election^[36]
Party		Candidate	Votes	%
	Democratic	Corey O'Connor	80,738	85.57
	Republican	Tony Moreno	11,463	12.15
	Write-in		2,154	2.28
Total votes			94,355	100.0

Notes

^ Pittsburgh's EMS Union is affiliated with AFL-CIO.
^ Key:
A – all adults
RV – registered voters
LV – likely voters
V – unclear

Partisan clients

^ Poll sponsored by Gainey's campaign
^ ^a ^b Poll sponsored by O'Connor's campaign

References

^ "Upcoming Elections". www.pa.gov. Retrieved February 10, 2025.
^ "O'Connor Wins Democratic Primary, for Pittsburgh Mayor, Defeating Incumbent". New York Times. May 20, 2025. Retrieved May 20, 2025.
^ Delano, Jon (July 5, 2024). "Poll shows hypothetical primary matchup between Pittsburgh Mayor Ed Gainey and Corey O'Connor". CBS News. Retrieved November 11, 2024.
^ Ulrich, Steve (December 10, 2024). "O'Connor Announces Candidacy For Pittsburgh Mayor". PoliticsPA. Retrieved December 10, 2024.
^ Maruca, Julia; Potter, Chris (September 7, 2024). "Gainey launches bid for second term as Pittsburgh's mayor". WESA. Retrieved November 11, 2024.
^ ^a ^b ^c ^d ^e ^f ^g Wolfson, Charlie (March 4, 2025). "Pittsburgh's mayoral primary options: Ed Gainey". PublicSource. Retrieved March 10, 2025.
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m Maruca, Julia (February 10, 2025). "O'Connor starts year with money advantage over Gainey in Pittsburgh mayoral primary campaign". 90.5 WESA. Retrieved April 26, 2025.
^ ^a ^b ^c ^d ^e Taylor, Rob Jr. (March 13, 2025). "Support growing for Gainey in bid for re-election". New Pittsburgh Courier. Retrieved May 13, 2025.
^ ^a ^b ^c ^d ^e ^f Potter, Chris; Maruca, Julia (April 21, 2025). "Voter guide to Pittsburgh mayor primary election: Gainey, O'Connor, Moreno, West". 90.5 WESA. Retrieved April 26, 2025.
^ Prose, J.D. (March 18, 2025). "Is this Pa. city's mayoral primary a barometer of Democrats' future?". The Patriot-News. Retrieved April 25, 2025.
^ ^a ^b ^c ^d Heyl, Eric (March 18, 2025). "Pittsburgh Mayor Ed Gainey Gets Key Backing From Unions". Patch Media. Retrieved April 25, 2025.
^ "Eastern Region Celebrates Union Growth: Council Endorses Pittsburgh Mayor, May Day Actions". United Electrical Union. April 29, 2025. Retrieved May 13, 2025.
^ Deto, Ryan (February 4, 2025). "Scoop: Steelworkers back Gainey in mayoral race". Axios. Retrieved February 7, 2025.
^ CMU Democrats [@cmudems] (April 7, 2025). "The CMU College Democrats are officially endorsing @mayoredgainey for the Mayor of Pittsburgh". Instagram. Retrieved April 25, 2025.
^ Clean Water Action - Pennsylvania [@CleanWaterActionPA] (April 29, 2025). "We're excited to announce our support of Team Gainey in his re-election campaign for Mayor". Facebook. Retrieved May 13, 2025.
^ "2025 Endorsements". Conservation Voters of PA. Retrieved April 25, 2025.
^ Ulrich, Steve (April 9, 2025). "Gainey Garners NextGen PAC Endorsement". PoliticsPA. Retrieved April 10, 2025.
^ "Pennsylvania Working Families Party Endorses Pittsburgh Mayor Ed Gainey for re-election". Pennsylvania Working Families Party. April 10, 2025. Retrieved April 26, 2025.
^ "LET HIM FINISH WHAT HE STARTED: Courier endorses Ed Gainey for Mayor". New Pittsburgh Courier. May 15, 2025. Retrieved May 15, 2025.
^ ^a ^b ^c Wolfson, Charlie (March 4, 2025). "Pittsburgh's mayoral primary options: Corey O'Connor". PublicSource. Retrieved March 10, 2025.
^ Maruca, Julia (April 3, 2025). "Gainey, O'Connor face questions on Israel, antisemitism fears at Pittsburgh mayoral forum". 90.5 WESA. Retrieved April 26, 2025.
^ Weigel, David (April 18, 2025). "Can a progressive mayor survive in Pittsburgh?". Semafor. Retrieved May 14, 2025.
^ Corey O'Connor campaign (May 12, 2025). "Mayor Murphy, why are you supporting Corey for Mayor?". Twitter. Retrieved May 22, 2025.
^ Burdelski, Julia (May 11, 2025). "Split decision: As Gainey claims unity in mayoral race, cracks appear among Democrats". Pittsburgh Tribune-Review. Retrieved May 13, 2025.
^ ^a ^b Lauer, Hallie (February 10, 2025). "Corey O'Connor gets the nod from Young Democrats, multiple labor unions in bid for mayor". Pittsburgh Post-Gazette. Retrieved February 18, 2025.
^ Sheehan, Andy (March 18, 2025). "Pittsburgh's unions divided over support for Mayor Ed Gainey and Controller Corey O'Connor". CBS News/KDKA News. Retrieved April 25, 2025.
^ Potter, Chris (March 9, 2025). "O'Connor edges out Gainey in Democratic Committee endorsement". 90.5 WESA. Retrieved March 10, 2025.
^ Pitt College Dems [@pittcollegedems] (February 15, 2025). "Announcing our official endorsements for the 2025 primary election". Facebook. Retrieved February 18, 2025.
^ "2025 Primary Endorsements". Pennsylvania AFL-CIO. Retrieved April 26, 2025.
^ Potter, Chris (April 28, 2025). "Gainey camp says its polling demonstrates he's driving Pittsburgh's mayoral race". WESA. Retrieved April 28, 2025.
^ Potter, Chris (April 18, 2025). "Gainey, trailing O'Connor in polls, tries to nationalize the race for Pittsburgh mayor". WESA. Retrieved April 18, 2025.
^ Deto, Ryan (March 3, 2025). "Scoop: O'Connor up by 12 points in mayoral race". Axios. Retrieved March 10, 2025.
^ ^a ^b "Dem Mayor Pittsburgh". Allegheny County, PA Election Results. Retrieved May 21, 2025.
^ Sasso, Kelly (January 24, 2025). "Tony Moreno will make another run for Pittsburgh mayor". WTAE-TV. Retrieved January 24, 2025.
^ Gunderson, Kalea (January 28, 2025). "Pittsburgh business owner Thomas West launches Republican bid for mayor". WTAE-TV. Retrieved January 29, 2025.
^ "Mayor Pittsburgh". results.enr.clarityelections.com. November 3, 2025. Retrieved November 3, 2025.

External links

Official campaign websites

[24] Pittsburgh's EMS Union is affiliated with AFL-CIO.

[Key-31] Key:
A – all adults
RV – registered voters
LV – likely voters
V – unclear

[33] Poll sponsored by Gainey's campaign

[Lake-35] Poll sponsored by O'Connor's campaign

[1] "Upcoming Elections". www.pa.gov. Retrieved February 10, 2025.

[2] "O'Connor Wins Democratic Primary, for Pittsburgh Mayor, Defeating Incumbent". New York Times. May 20, 2025. Retrieved May 20, 2025.

[3] Delano, Jon (July 5, 2024). "Poll shows hypothetical primary matchup between Pittsburgh Mayor Ed Gainey and Corey O'Connor". CBS News. Retrieved November 11, 2024.

[4] Ulrich, Steve (December 10, 2024). "O'Connor Announces Candidacy For Pittsburgh Mayor". PoliticsPA. Retrieved December 10, 2024.

[5] Maruca, Julia; Potter, Chris (September 7, 2024). "Gainey launches bid for second term as Pittsburgh's mayor". WESA. Retrieved November 11, 2024.

[Gainey_Option-6] ^ ^a ^b ^c ^d ^e ^f ^g Wolfson, Charlie (March 4, 2025). "Pittsburgh's mayoral primary options: Ed Gainey". PublicSource. Retrieved March 10, 2025.

[coreyunion-7] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m Maruca, Julia (February 10, 2025). "O'Connor starts year with money advantage over Gainey in Pittsburgh mayoral primary campaign". 90.5 WESA. Retrieved April 26, 2025.

[iuoe66-8] Taylor, Rob Jr. (March 13, 2025). "Support growing for Gainey in bid for re-election". New Pittsburgh Courier. Retrieved May 13, 2025.

[iaff-9] ^ ^a ^b ^c ^d ^e ^f Potter, Chris; Maruca, Julia (April 21, 2025). "Voter guide to Pittsburgh mayor primary election: Gainey, O'Connor, Moreno, West". 90.5 WESA. Retrieved April 26, 2025.

[10] Prose, J.D. (March 18, 2025). "Is this Pa. city's mayoral primary a barometer of Democrats' future?". The Patriot-News. Retrieved April 25, 2025.

[patch-11] Heyl, Eric (March 18, 2025). "Pittsburgh Mayor Ed Gainey Gets Key Backing From Unions". Patch Media. Retrieved April 25, 2025.

[12] "Eastern Region Celebrates Union Growth: Council Endorses Pittsburgh Mayor, May Day Actions". United Electrical Union. April 29, 2025. Retrieved May 13, 2025.

[13] Deto, Ryan (February 4, 2025). "Scoop: Steelworkers back Gainey in mayoral race". Axios. Retrieved February 7, 2025.

[14] CMU Democrats [@cmudems] (April 7, 2025). "The CMU College Democrats are officially endorsing @mayoredgainey for the Mayor of Pittsburgh". Instagram. Retrieved April 25, 2025.

[15] Clean Water Action - Pennsylvania [@CleanWaterActionPA] (April 29, 2025). "We're excited to announce our support of Team Gainey in his re-election campaign for Mayor". Facebook. Retrieved May 13, 2025.

[16] "2025 Endorsements". Conservation Voters of PA. Retrieved April 25, 2025.

[17] Ulrich, Steve (April 9, 2025). "Gainey Garners NextGen PAC Endorsement". PoliticsPA. Retrieved April 10, 2025.

[18] "Pennsylvania Working Families Party Endorses Pittsburgh Mayor Ed Gainey for re-election". Pennsylvania Working Families Party. April 10, 2025. Retrieved April 26, 2025.

[19] "LET HIM FINISH WHAT HE STARTED: Courier endorses Ed Gainey for Mayor". New Pittsburgh Courier. May 15, 2025. Retrieved May 15, 2025.

[O'Connor_Option-20] Wolfson, Charlie (March 4, 2025). "Pittsburgh's mayoral primary options: Corey O'Connor". PublicSource. Retrieved March 10, 2025.

[21] Maruca, Julia (April 3, 2025). "Gainey, O'Connor face questions on Israel, antisemitism fears at Pittsburgh mayoral forum". 90.5 WESA. Retrieved April 26, 2025.

[22] Weigel, David (April 18, 2025). "Can a progressive mayor survive in Pittsburgh?". Semafor. Retrieved May 14, 2025.

[23] Corey O'Connor campaign (May 12, 2025). "Mayor Murphy, why are you supporting Corey for Mayor?". Twitter. Retrieved May 22, 2025.

[25] Burdelski, Julia (May 11, 2025). "Split decision: As Gainey claims unity in mayoral race, cracks appear among Democrats". Pittsburgh Tribune-Review. Retrieved May 13, 2025.

[nod-26] Lauer, Hallie (February 10, 2025). "Corey O'Connor gets the nod from Young Democrats, multiple labor unions in bid for mayor". Pittsburgh Post-Gazette. Retrieved February 18, 2025.

[CBSKDKA-27] Sheehan, Andy (March 18, 2025). "Pittsburgh's unions divided over support for Mayor Ed Gainey and Controller Corey O'Connor". CBS News/KDKA News. Retrieved April 25, 2025.

[28] Potter, Chris (March 9, 2025). "O'Connor edges out Gainey in Democratic Committee endorsement". 90.5 WESA. Retrieved March 10, 2025.

[29] Pitt College Dems [@pittcollegedems] (February 15, 2025). "Announcing our official endorsements for the 2025 primary election". Facebook. Retrieved February 18, 2025.

[30] "2025 Primary Endorsements". Pennsylvania AFL-CIO. Retrieved April 26, 2025.

[32] Potter, Chris (April 28, 2025). "Gainey camp says its polling demonstrates he's driving Pittsburgh's mayoral race". WESA. Retrieved April 28, 2025.

[34] Potter, Chris (April 18, 2025). "Gainey, trailing O'Connor in polls, tries to nationalize the race for Pittsburgh mayor". WESA. Retrieved April 18, 2025.

[36] Deto, Ryan (March 3, 2025). "Scoop: O'Connor up by 12 points in mayoral race". Axios. Retrieved March 10, 2025.

[2025electresults-37] "Dem Mayor Pittsburgh". Allegheny County, PA Election Results. Retrieved May 21, 2025.

[38] Sasso, Kelly (January 24, 2025). "Tony Moreno will make another run for Pittsburgh mayor". WTAE-TV. Retrieved January 24, 2025.

[39] Gunderson, Kalea (January 28, 2025). "Pittsburgh business owner Thomas West launches Republican bid for mayor". WTAE-TV. Retrieved January 29, 2025.

[40] "Mayor Pittsburgh". results.enr.clarityelections.com. November 3, 2025. Retrieved November 3, 2025.

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