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icon for How many House seats will the Democrats win in Pennsylvania?
Politics·Trump

How many House seats will the Democrats win in Pennsylvania?

icon for How many House seats will the Democrats win in Pennsylvania?
Politics·Trump

How many House seats will the Democrats win in Pennsylvania?

9 32%

11 27%

10 19%

8 8%

Polymarket

$10,475 Vol.

9 32%

11 27%

10 19%

8 8%

Polymarket

$10,475 Vol.

<7

$386 Vol.

1%

7

$2,260 Vol.

6%

8

$693 Vol.

8%

9

$2,211 Vol.

32%

10

$1,335 Vol.

19%

11

$3,071 Vol.

27%

12+

$519 Vol.

4%

This market will resolve according to the number of seats in the US House of Representatives won by the Democratic Party in Pennsylvania in the 2026 United States midterm election. All Pennsylvania US House of Representatives elections held as part of the 2026 United States midterm election that elect voting members and determine representation in the upcoming 120th congress are included. Special elections to fill a vacancy for the remainder of an unexpired term are not included, whether or not held concurrently with the 2026 United States midterm election. Runoffs for qualifying elections will determine attribution of the relevant seat. Seats are attributed to the party under which the member was elected. If a member-elect changes party affiliation or vacates their seat after the date of the 2026 United States midterm election, the seat is attributed to the party under which the member was elected. Members of the House elected as independents who formally caucus, or who announce their intent to caucus, with a party prior to the date of the 2026 United States midterm election are included in that party’s count. If the caucus decisions of relevant members of the US House of Representatives elected as independents cannot be determined as of the date of the 2026 United States midterm election, this market may remain open until the earlier of (i) an announcement from the relevant members of their intents to caucus, or (ii) January 4th, 11:59 PM ET of the following calendar year. If no such announcement is made by January 4th, 11:59 PM ET of the following calendar year, the member will not count towards the seat count of any party. The resolution sources for this market will be official information from relevant state electoral authorities, the United States Congress, and a consensus of credible reporting.Pennsylvania’s 17 congressional districts feature a post-2024 Republican 10-7 edge, with four GOP-held seats—PA-1 (Fitzpatrick), PA-7 (Mackenzie), PA-8 (Bresnahan), and PA-10 (Perry)—rated toss-up or lean Republican by major forecasters due to narrow 2024 margins and Democratic targeting. Freshman Republican incumbents face well-funded challengers backed by Governor Josh Shapiro, while recent Franklin & Marshall polling shows Democratic generic-ballot strength tied to softening Trump approval. Primaries concluded in May, locking in general-election matchups where suburban Philadelphia, Lehigh Valley, and central Pennsylvania swing voters remain decisive. Trader pricing clustered around 9-11 Democratic seats reflects expectations of modest net gains of one to four districts, with separation likely hinging on late-cycle polling shifts, turnout differentials, or any broader national environment changes before November 3.

This market will resolve according to the number of seats in the US House of Representatives won by the Democratic Party in Pennsylvania in the 2026 United States midterm election.

All Pennsylvania US House of Representatives elections held as part of the 2026 United States midterm election that elect voting members and determine representation in the upcoming 120th congress are included. Special elections to fill a vacancy for the remainder of an unexpired term are not included, whether or not held concurrently with the 2026 United States midterm election. Runoffs for qualifying elections will determine attribution of the relevant seat.

Seats are attributed to the party under which the member was elected. If a member-elect changes party affiliation or vacates their seat after the date of the 2026 United States midterm election, the seat is attributed to the party under which the member was elected.

Members of the House elected as independents who formally caucus, or who announce their intent to caucus, with a party prior to the date of the 2026 United States midterm election are included in that party’s count. If the caucus decisions of relevant members of the US House of Representatives elected as independents cannot be determined as of the date of the 2026 United States midterm election, this market may remain open until the earlier of (i) an announcement from the relevant members of their intents to caucus, or (ii) January 4th, 11:59 PM ET of the following calendar year. If no such announcement is made by January 4th, 11:59 PM ET of the following calendar year, the member will not count towards the seat count of any party.

The resolution sources for this market will be official information from relevant state electoral authorities, the United States Congress, and a consensus of credible reporting.
Volume
$10,475
End Date
Nov 3, 2026
Market Opened
Aug 11, 2026, 10:13 AM ET

Resolver

0x69c47De9D...
This market will resolve according to the number of seats in the US House of Representatives won by the Democratic Party in Pennsylvania in the 2026 United States midterm election. All Pennsylvania US House of Representatives elections held as part of the 2026 United States midterm election that elect voting members and determine representation in the upcoming 120th congress are included. Special elections to fill a vacancy for the remainder of an unexpired term are not included, whether or not held concurrently with the 2026 United States midterm election. Runoffs for qualifying elections will determine attribution of the relevant seat. Seats are attributed to the party under which the member was elected. If a member-elect changes party affiliation or vacates their seat after the date of the 2026 United States midterm election, the seat is attributed to the party under which the member was elected. Members of the House elected as independents who formally caucus, or who announce their intent to caucus, with a party prior to the date of the 2026 United States midterm election are included in that party’s count. If the caucus decisions of relevant members of the US House of Representatives elected as independents cannot be determined as of the date of the 2026 United States midterm election, this market may remain open until the earlier of (i) an announcement from the relevant members of their intents to caucus, or (ii) January 4th, 11:59 PM ET of the following calendar year. If no such announcement is made by January 4th, 11:59 PM ET of the following calendar year, the member will not count towards the seat count of any party. The resolution sources for this market will be official information from relevant state electoral authorities, the United States Congress, and a consensus of credible reporting.
This market will resolve according to the number of seats in the US House of Representatives won by the Democratic Party in Pennsylvania in the 2026 United States midterm election. All Pennsylvania US House of Representatives elections held as part of the 2026 United States midterm election that elect voting members and determine representation in the upcoming 120th congress are included. Special elections to fill a vacancy for the remainder of an unexpired term are not included, whether or not held concurrently with the 2026 United States midterm election. Runoffs for qualifying elections will determine attribution of the relevant seat. Seats are attributed to the party under which the member was elected. If a member-elect changes party affiliation or vacates their seat after the date of the 2026 United States midterm election, the seat is attributed to the party under which the member was elected. Members of the House elected as independents who formally caucus, or who announce their intent to caucus, with a party prior to the date of the 2026 United States midterm election are included in that party’s count. If the caucus decisions of relevant members of the US House of Representatives elected as independents cannot be determined as of the date of the 2026 United States midterm election, this market may remain open until the earlier of (i) an announcement from the relevant members of their intents to caucus, or (ii) January 4th, 11:59 PM ET of the following calendar year. If no such announcement is made by January 4th, 11:59 PM ET of the following calendar year, the member will not count towards the seat count of any party. The resolution sources for this market will be official information from relevant state electoral authorities, the United States Congress, and a consensus of credible reporting.Pennsylvania’s 17 congressional districts feature a post-2024 Republican 10-7 edge, with four GOP-held seats—PA-1 (Fitzpatrick), PA-7 (Mackenzie), PA-8 (Bresnahan), and PA-10 (Perry)—rated toss-up or lean Republican by major forecasters due to narrow 2024 margins and Democratic targeting. Freshman Republican incumbents face well-funded challengers backed by Governor Josh Shapiro, while recent Franklin & Marshall polling shows Democratic generic-ballot strength tied to softening Trump approval. Primaries concluded in May, locking in general-election matchups where suburban Philadelphia, Lehigh Valley, and central Pennsylvania swing voters remain decisive. Trader pricing clustered around 9-11 Democratic seats reflects expectations of modest net gains of one to four districts, with separation likely hinging on late-cycle polling shifts, turnout differentials, or any broader national environment changes before November 3.

This market will resolve according to the number of seats in the US House of Representatives won by the Democratic Party in Pennsylvania in the 2026 United States midterm election.

All Pennsylvania US House of Representatives elections held as part of the 2026 United States midterm election that elect voting members and determine representation in the upcoming 120th congress are included. Special elections to fill a vacancy for the remainder of an unexpired term are not included, whether or not held concurrently with the 2026 United States midterm election. Runoffs for qualifying elections will determine attribution of the relevant seat.

Seats are attributed to the party under which the member was elected. If a member-elect changes party affiliation or vacates their seat after the date of the 2026 United States midterm election, the seat is attributed to the party under which the member was elected.

Members of the House elected as independents who formally caucus, or who announce their intent to caucus, with a party prior to the date of the 2026 United States midterm election are included in that party’s count. If the caucus decisions of relevant members of the US House of Representatives elected as independents cannot be determined as of the date of the 2026 United States midterm election, this market may remain open until the earlier of (i) an announcement from the relevant members of their intents to caucus, or (ii) January 4th, 11:59 PM ET of the following calendar year. If no such announcement is made by January 4th, 11:59 PM ET of the following calendar year, the member will not count towards the seat count of any party.

The resolution sources for this market will be official information from relevant state electoral authorities, the United States Congress, and a consensus of credible reporting.
Volume
$10,475
End Date
Nov 3, 2026
Market Opened
Aug 11, 2026, 10:13 AM ET

Resolver

0x69c47De9D...
This market will resolve according to the number of seats in the US House of Representatives won by the Democratic Party in Pennsylvania in the 2026 United States midterm election. All Pennsylvania US House of Representatives elections held as part of the 2026 United States midterm election that elect voting members and determine representation in the upcoming 120th congress are included. Special elections to fill a vacancy for the remainder of an unexpired term are not included, whether or not held concurrently with the 2026 United States midterm election. Runoffs for qualifying elections will determine attribution of the relevant seat. Seats are attributed to the party under which the member was elected. If a member-elect changes party affiliation or vacates their seat after the date of the 2026 United States midterm election, the seat is attributed to the party under which the member was elected. Members of the House elected as independents who formally caucus, or who announce their intent to caucus, with a party prior to the date of the 2026 United States midterm election are included in that party’s count. If the caucus decisions of relevant members of the US House of Representatives elected as independents cannot be determined as of the date of the 2026 United States midterm election, this market may remain open until the earlier of (i) an announcement from the relevant members of their intents to caucus, or (ii) January 4th, 11:59 PM ET of the following calendar year. If no such announcement is made by January 4th, 11:59 PM ET of the following calendar year, the member will not count towards the seat count of any party. The resolution sources for this market will be official information from relevant state electoral authorities, the United States Congress, and a consensus of credible reporting.

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Frequently Asked Questions

"How many House seats will the Democrats win in Pennsylvania?" is a prediction market on Polymarket with 7 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "9" at 32%, followed by "11" at 27%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 32¢ implies that the market collectively assigns a 32% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

As of today, "How many House seats will the Democrats win in Pennsylvania?" has generated $10.5K in total trading volume since the market launched on Aug 11, 2026. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

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The current frontrunner for "How many House seats will the Democrats win in Pennsylvania?" is "9" at 32%, meaning the market assigns a 32% chance to that outcome. The next closest outcome is "11" at 27%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "How many House seats will the Democrats win in Pennsylvania?" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.