Voting & Elections in Princeton, NJ
Presidential election results and party lean trends
County-level data: Election results are reported at the county level. Princeton is located in Mercer County, NJ. Results reflect all voters in the county, not just those in Princeton.
Election Overview
Source: Mercer County (2024)2024 Winner
Democrat
Dem Votes
107,558
65.9%
GOP Votes
52,274
32.0%
Total Votes
163,270
Margin
D+33.9%
Shift from 2020
R+6.1pp
vs prior election
📊Election Results by Year
2016–2024📈Partisan Lean Trend
D+33.9%Election History
Source: County-Level Election Results| Year | Dem Votes | GOP Votes | Total | Dem % | GOP % | Margin |
|---|---|---|---|---|---|---|
| 2024 | 107,558 | 52,274 | 163,270 | 65.9% | 32.0% | D+33.9 |
| 2020 | 122,532 | 51,641 | 177,223 | 69.1% | 29.1% | D+40.0 |
| 2016 | 93,721 | 42,604 | 141,332 | 66.3% | 30.1% | D+36.2 |
In the 2024 presidential election, Mercer County recorded 163,270 total votes. Democrats won the county with 65.9% of the vote compared to 32.0% for Republicans, a margin of D+33.9%. Compared to 2020, the margin shifted R+6.1pp from the previous election. Since 2016, Mercer County has shifted 2.3 percentage points toward Republicans.