Township in Morris County, New Jersey · 39 sq mi · 532 people per sq mi
About 21,000 people live in Jefferson township. The typical household earns $119,836, and the median resident is 46.4 years old.
2026 projection
From 20,486 in 2020
Poverty rate 4.52%
Men 46.9 · Women 46.3
2010–2026
20,747
2026 projection
1.3% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
2010–2026
20,747
2026 projection
1.3% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 20,747 | +44 | 0.21% |
|---|---|---|---|
| 2025 | 20,703 | +44 | 0.21% |
| 2024 | 20,659 | +2 | 0.01% |
| 2023 | 20,657 | +123 | 0.60% |
| 2022 | 20,534 | -7 | 0.03% |
| 2021 | 20,541 | +55 | 0.27% |
| 2020 | 20,486 | -217 | 1.05% |
| 2019 | 20,703 | -241 | 1.15% |
| 2018 | 20,944 | -154 | 0.73% |
| 2017 | 21,098 | -82 | 0.39% |
Showing 10 of 17 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 206 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 22 residents
57% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 57% | 56% | 57% |
| Never married | 25% | 26% | 24% |
| Divorced | 12% | 13% | 12% |
| Widowed | 5% | 3% | 6% |
| Separated | <1% | <1% | <1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau