2026 Delaware Senate Forecast
2026 Delaware Senate Forecast
Last Updated: Friday, March 27, 2025, 1:40 PM ET
Race Note:
Incumbent Democratic Sen. Chris Coons, first elected in 2010 and re-elected in 2020 with 59% of the vote, is up for re-election in 2026. Delaware has voted Democratic in every presidential election since 1988 and remains a solidly blue state. In the 2024 presidential election, Kamala Harris carried Delaware by nearly 15 points, a smaller margin than former President Joe Biden’s 19-point home-state victory in 2020 but consistent with her relative underperformance in other deep-blue states. The state’s population is concentrated in the urbanized north around Wilmington, while its rural southern region retains some Southern cultural and political influences.
Race Note:
Incumbent Democratic Sen. Chris Coons, first elected in 2010 and re-elected in 2020 with 59% of the vote, is up for re-election in 2026. Delaware has
voted Democratic in every presidential election since 1988 and remains a solidly blue state.
In the 2024 presidential election, Kamala Harris carried Delaware by nearly 15 points, a smaller margin than former President Joe Biden’s 19-point home-state victory in 2020 but consistent with her relative underperformance in other deep-blue states. The state’s population is concentrated in the urbanized north around Wilmington, while its rural southern region retains some Southern cultural and political influences.
| County | Prediction | Population | % of State |
|---|---|---|---|
| County 1 | D+14.0 | 664,744 | 12.89% |
| County 2 | R+4.5 | 423,355 | 8.21% |
| County 3 | D+13.9 | 412,339 | 7.99% |
| County 4 | D+55.1 | 261,608 | 5.07% |
| County 5 | R+17.6 | 241,212 | 4.68% |
| County 6 | R+60.0 | 235,969 | 4.58% |
| County 7 | D+34.6 | 225,894 | 4.38% |
| County 8 | R+25.7 | 187,847 | 3.64% |
| County 9 | R+49.5 | 126,084 | 2.44% |
| County 10 | D+39.8 | 118,942 | 2.31% |
| County | Prediction | Population | % of State |
|---|---|---|---|
| County 1 | D+14.0 | 664,744 | 12.89% |
| County 2 | R+4.5 | 423,355 | 8.21% |
| County 3 | D+13.9 | 412,339 | 7.99% |
| County 4 | D+55.1 | 261,608 | 5.07% |
| County 5 | R+17.6 | 241,212 | 4.68% |
| County 6 | R+60.0 | 235,969 | 4.58% |
| County 7 | D+34.6 | 225,894 | 4.38% |
| County 8 | R+25.7 | 187,847 | 3.64% |
| County 9 | R+49.5 | 126,084 | 2.44% |
| County 10 | D+39.8 | 118,942 | 2.31% |