Town Profile
Butler
Morris County · Butler Borough, in New Jersey's 11th Congressional District
5,899
Registered voters
35.5%
Unaffiliated
Republican
Largest bloc (+1.2 pts)
Party registration
| Affiliation | Voters | Share |
|---|---|---|
| Democrat | 1,572 | 26.6% |
| Republican | 2,166 | 36.7% |
| Unaffiliated | 2,097 | 35.5% |
| Other | 64 | 1.1% |
By age
| Age band | Voters | Share |
|---|---|---|
| 18-24 | 492 | 8.3% |
| 25-34 | 965 | 16.4% |
| 35-49 | 1,494 | 25.3% |
| 50-64 | 1,519 | 25.8% |
| 65+ | 1,415 | 24% |
| Unknown | 14 | 0.2% |
Source: public New Jersey voter registration records, as of 2026-06-04, aggregated to protect individual privacy. "Unaffiliated" voters are registered but not declared with a party and are the swing pool that decides close races in this district. No individual voter records are published on this site.