Borough in Somerset County, New Jersey · 0.6 sq mi · 1,235 people per sq mi
About 750 people live in Rocky Hill. The typical household earns $148,056, and the median resident is 44.5 years old.
2026 projection
From 739 in 2020
Poverty rate 3.91%
Men 40.5 · Women 49.2
2010–2026
753
2026 projection
1.9% 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
753
2026 projection
1.9% 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 | 753 | +2 | 0.27% |
|---|---|---|---|
| 2025 | 751 | +1 | 0.13% |
| 2024 | 750 | +7 | 0.94% |
| 2023 | 743 | +1 | 0.13% |
| 2022 | 742 | +1 | 0.13% |
| 2021 | 741 | +2 | 0.27% |
| 2020 | 739 | +68 | 10.13% |
| 2019 | 671 | -5 | 0.74% |
| 2018 | 676 | -1 | 0.15% |
| 2017 | 677 | -2 | 0.29% |
Showing 10 of 17 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 8 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 26 residents
49% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 49% | 47% | 52% |
| Never married | 32% | 38% | 25% |
| Divorced | 11% | 7% | 16% |
| Widowed | 7% | 7% | 7% |
| Separated | <1% | 1% | <1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau