Partisan Voting Index for Counties in New Jersey

This Map Displays the Partisan Voting Index Value for each county in New Jersey. The Partisan Voting Index (PVI) is a measurement of how strongly a county leans toward the Democratic or Republican Party. The PVI is calculated by taking the average percentage for the winning party in a county for the last two elections and subtracting that value from the national average for that party in the same two elections. The data is based on results from the 2024 and 2020 presidential election. Of the 21 Counties in New Jersey The County with the highest Republican PVI is Ocean County at +17. The County with the highest Democrat PVI is Essex County at +25.

Map List Related

Map of Partisan Voting Index (PVI) for Counties in New Jersey

Rep +20
Rep. 15-19
Rep. 10-14
Rep. 5-9
Rep. 1-4
Even
Dem 1-4
Dem 5-9
Dem 10-14
Dem 15-19
Dem +20

List of All Counties in New Jersey With Partisan Voting Index (2024 Presidential Election Results)

Map KeyNamePartisan Voting Index (2024)
Atlantic CountyEven +0
Bergen CountyDemocrat +4
Burlington CountyDemocrat +9
Camden CountyDemocrat +15
Cape May CountyRepublican +10
Cumberland CountyRepublican +1
Essex CountyDemocrat +25
Gloucester CountyRepublican +1
Hudson CountyDemocrat +18
Hunterdon CountyRepublican +4
Mercer CountyDemocrat +18
Middlesex CountyDemocrat +7
Monmouth CountyRepublican +4
Morris CountyEven +0
Ocean CountyRepublican +17
Passaic CountyRepublican +3
Salem CountyRepublican +9
Somerset CountyDemocrat +8
Sussex CountyRepublican +12
Union CountyDemocrat +14
Warren CountyRepublican +10

Related Maps and Data:

2025 zipdatamaps.com