Borough in Morris County, New Jersey · 5.9 sq mi · 842 people per sq mi
4,992 people live in Mendham. The typical household earns $211,944, and the median resident is 46.5 years old.
2026 projection
From 4,981 in 2020
Poverty rate 3.52%
Men 47.6 · Women 46
1910–2026
4,992
2026 projection
0.2% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
1910–2026
4,992
2026 projection
0.2% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 4,992 | +7 | 0.14% |
|---|---|---|---|
| 2025 | 4,985 | +19 | 0.38% |
| 2024 | 4,966 | 0 | 0.00% |
| 2023 | 4,966 | +44 | 0.89% |
| 2022 | 4,922 | +10 | 0.20% |
| 2021 | 4,912 | -69 | 1.39% |
| 2020 | 4,981 | +10 | 0.20% |
| 2019 | 4,971 | -41 | 0.82% |
| 2018 | 5,012 | -10 | 0.20% |
| 2017 | 5,022 | -7 | 0.14% |
Showing 10 of 27 years.
The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 50 people).
Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 28 residents
59% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 59% | 70% | 51% |
| Never married | 26% | 21% | 30% |
| Divorced | 10% | 6% | 13% |
| Widowed | 5% | 3% | 6% |
| Separated | <1% | 0% | 1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources