Pennsylvania’s 5th District House Race: Who Will Win
Pennsylvania’s 5th Congressional District, anchored in Delaware County and part of the Philadelphia suburbs, will elect a member of the U.S. House in 2026. The seat has leaned Democratic in recent cycles, but open-seat contests and shifting suburban turnout patterns can scramble expectations. Candidates from both major parties are expected to compete, with the eventual nominees shaped by primary outcomes.
Why Markets Are Watching
Control of the U.S. House could again come down to a small number of competitive suburban districts, and PA-05 sits in that category. Delaware County’s demographic mix and history of swinging between parties make it a useful bellwether for broader political trends. The outcome will shape representation for a densely populated slice of the Philadelphia metro area.
How Prediction Markets Frame the Race
The market reduces a multi-candidate field into a binary-style question: which party’s nominee ultimately wins the seat. Separate contracts isolate individual candidates before primaries resolve the field, letting traders express views on nomination fights as well as the general election. As filings and polling develop, the structure effectively tracks both intra-party strength and the district’s overall partisan lean.
Related terms
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Democratic Party (United States) -
Republican Party (United States) -
Pennsylvania -
Philadelphia -
Delaware County, Pennsylvania -
Mary Gay Scanlon
Total Volume
$25.4k
Kalshi $2.2k · Polymarket $23.2k
Leading Market
Mary Gay Scanlon
Kalshi 97% · Polymarket 99%
Mary Gay Scanlon Volume
$13.2k
Kalshi $730.89 · Polymarket $12.4k
Mary Gay Scanlon 24h Change
-1.40%
Kalshi -1.40% · Polymarket 0.00%
Calculate Your Potential Return
- Kalshi(opens in a new tab) 7.0% fee
- Polymarket(opens in a new tab) 5.0% fee
| Market | Kalshi Yes | Kalshi Fee | Kalshi Payout | Polymarket Yes | Polymarket Fee | Polymarket Payout |
|---|---|---|---|---|---|---|
| Mary Gay ScanlonDemocratic Party | 99.4¢ | 7.0% | , trade Mary Gay Scanlon on Kalshi (opens in a new tab) | 99.0¢ | 5% | , trade Mary Gay Scanlon on Polymarket (opens in a new tab) |
| Nicholas ManganaroRepublican Party | 2.7¢ | 7.0% | , trade Nicholas Manganaro on Kalshi (opens in a new tab) | — | — | — |
| Nick ManganaroRepublican Party | — | — | — | 3.0¢ | 5% | , trade Nick Manganaro on Polymarket (opens in a new tab) |
* Estimates if candidate wins. Actual returns may vary.
All Markets
| Market | Total Volume | Kalshi(opens in a new tab) | Polymarket(opens in a new tab) |
|---|---|---|---|
| Mary Gay ScanlonDemocratic Party | $13,171.59 | ||
| Nicholas ManganaroRepublican Party | $1,467.10 | No market | |
| Nick ManganaroRepublican Party | $10,719.36 | No market |