Town Profile
Riverdale
Morris County · Riverdale Borough, in New Jersey's 11th Congressional District
3,303
Registered voters
31.9%
Unaffiliated
Republican
Largest bloc (+10.3 pts)
Party registration
| Affiliation | Voters | Share |
|---|---|---|
| Democrat | 819 | 24.8% |
| Republican | 1,395 | 42.2% |
| Unaffiliated | 1,054 | 31.9% |
| Other | 35 | 1.1% |
By age
| Age band | Voters | Share |
|---|---|---|
| 18-24 | 248 | 7.5% |
| 25-34 | 463 | 14% |
| 35-49 | 733 | 22.2% |
| 50-64 | 797 | 24.1% |
| 65+ | 1,054 | 31.9% |
| Unknown | 8 | 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.