Town Profile
Mountain Lakes
Morris County · Mountain Lakes Borough, in New Jersey's 11th Congressional District
3,672
Registered voters
37.9%
Unaffiliated
Unaffiliated
Largest bloc (+3.7 pts)
Party registration
| Affiliation | Voters | Share |
|---|---|---|
| Democrat | 1,257 | 34.2% |
| Republican | 1,004 | 27.3% |
| Unaffiliated | 1,393 | 37.9% |
| Other | 18 | 0.5% |
By age
| Age band | Voters | Share |
|---|---|---|
| 18-24 | 524 | 14.3% |
| 25-34 | 498 | 13.6% |
| 35-49 | 868 | 23.6% |
| 50-64 | 1,039 | 28.3% |
| 65+ | 738 | 20.1% |
| Unknown | 5 | 0.1% |
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.