Mendham borough, Morris County New Jersey Citizen Voting-age Population By Race and Ethnicity in 2021 (ACS-5Yrs)

Updated on March 29, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2021, the citizen voting-age population for Mendham borough, Morris County New Jersey was 3.65K. The Non-Hispanic White Alone ethnicity group had the highest citizen voting-age population (3.34K) and constituted 91.63% of the total.

The Non-Hispanic Asian Alone ethnicity group had the second highest citizen voting-age population (185) and constituted 5.08% of the total. The Hispanic or Latino of All Races ethnicity group had the third highest (85), constituting 2.33% of the total citizen voting-age population.

The charts and tables below shows the citizen voting-age population and percentages by race and ethnicity.

You can also see similar information for other Morris County New Jersey MCDs, and for Morris County.

Data Source: US Census - ACS 5-Year (CVAP).

See this for other years:

Mendham borough, Morris County New Jersey Citizen Voting-age Population By Race and Ethnicity in 2021

Non-Hispanic White Alone

Non-Hispanic Asian Alone

Hispanic or Latino of All Races

Non-Hispanic Black Alone

Non-Hispanic Two Or More Races

Mendham borough, Morris County New Jersey Citizen Voting-age Population By Race and Ethnicity in 2021

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Ethnicity	Voting-age Population	% of Voting-age Pop.
Non-Hispanic White Alone	3340	91.63
Non-Hispanic Asian Alone	185	5.08
Hispanic or Latino of All Races	85	2.33
Non-Hispanic Black or African American Alone	25	0.69
Non-Hispanic Two Or More Races	10	0.27