Mendham Borough, New Jersey Voting-age Population By Ethnicity in Census 2020
Updated on February 22, 2026.
According to the data from the US 2020 decennial Census, in April 2020, among Mendham Borough, NJ voting-age population of 3,858 people, 88.80% of them (3,426 people) identified their ethnicity as Non-Hispanic - White Alone, 3.27% of them (126 people) identified their ethnicity as Non-Hispanic - Asian Alone, and 2.96% of them (114 people) identified their ethnicity as Hispanic - Two Or More Races.
The first chart below shows the voting-age population by ethnicity and the second chart shows the percentage of the voting-age population for each ethnicity. You can also find this information in a table below.
You can see similar information for other New Jersey cities and places and also for the state of New Jersey.
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Data Source: US Census Bureau, 2020 Census.
Mendham Borough, NJ Voting-age Population By Ethnicity in Census 2020
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| Ethnicity | Voting-age Population | % of Place Voting-age Population |
|---|---|---|
| Non-Hispanic - White Alone | 3426 | 88.80 |
| Non-Hispanic - Asian Alone | 126 | 3.27 |
| Hispanic - Two Or More Races | 114 | 2.96 |
| Non-Hispanic - Two Or More Races | 70 | 1.81 |
| Hispanic - Some Other Race Alone | 49 | 1.27 |
| Hispanic - White Alone | 29 | 0.75 |
| Non-Hispanic - Black or African American Alone | 23 | 0.60 |
| Non-Hispanic - Some Other Race Alone | 14 | 0.36 |
| Hispanic - Asian Alone | 5 | 0.13 |
| Non-Hispanic - American Indian and Alaska Native Alone | 2 | 0.05 |
| Hispanic - Black or African American Alone | 0 | 0.00 |
| Hispanic - American Indian and Alaska Native Alone | 0 | 0.00 |
| Non-Hispanic - Native Hawaiian And Pacific Islander Alone | 0 | 0.00 |
| Hispanic - Native Hawaiian And Pacific Islander Alone | 0 | 0.00 |
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