How many registered voters are in Mendham?

Mendham, in Morris County, has 785 registered voters in New Jersey's 11th Congressional District.

What share of Mendham voters are unaffiliated?

33.5% of registered voters in Mendham are unaffiliated, meaning they have not declared a party. Unaffiliated voters are the swing pool that decides close races in this district.

Which party leads voter registration in Mendham?

Republican registrations are the largest bloc in Mendham, ahead by 1.4 points.

Town Profile

Mendham

Morris County · Mendham Township, in New Jersey's 11th Congressional District

Republican plurality Registration as of 2026-06-04

785

Registered voters

33.5%

Unaffiliated

Republican

Largest bloc (+1.4 pts)

Latest from Mendham

Mendham

Mendham High Tops Parsippany Hills 20-13 in Season Opener

West Morris Mendham secured a 20-13 victory over Parsippany Hills on September 4, marking the Vikings' first loss of the 2026 football season.

September 9, 2026 · 3 sources

Mendham

Mendham Area Faces Earthquake, Blood Shortage, and Storm Threats

Federal officials reported a minor earthquake in Morris County while local organizers held a blood drive to address shortages caused by recent severe weather.

September 3, 2026 · 4 sources

Mendham

Mendham Area Faces Quake, Blood Shortage Amid Weather Shifts

Federal officials confirmed a minor earthquake in Morris County while local organizers held a blood drive to address shortages caused by severe weather.

August 28, 2026 · 5 sources

Mendham

Mendham Patriots Red lose championship game to Parsippany RedTails

The Chester Mendham Patriots Red fell in a close final against the Parsippany RedTails, ending their inaugural season with a runner-up finish.

August 22, 2026 · 2 sources

Party registration

31.1%34.9%33.5%

Affiliation	Voters	Share
Democrat	244	31.1%
Republican	274	34.9%
Unaffiliated	263	33.5%
Other	4	0.5%

By age

Age band	Voters	Share
18-24	77	9.8%
25-34	115	14.6%
35-49	185	23.6%
50-64	191	24.3%
65+	215	27.4%
Unknown	2	0.3%

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.