| Statistic | Rocky Hill | New Jersey | National |
| Population | 655 | 8,882,190 | 328,239,523 |
| Population density (sq mi) | 1,072 | 1,215 | 91 |
| Median age | 43.3 | 39.5 | 37.7 |
| Male/Female ratio | 1.1:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | 63% | 56% | 55% |
| Families w/ Kids under 18 | 38% | 45% | 43% |
| Speak English | 83% | 69% | 79% |
| Speak Spanish | 3% | 16% | 13% |
| Race | Rocky Hill | New Jersey | National |
| White | 87.63% | 68.15% | 73.35% |
| Black | 7.79% | 13.54% | 12.63% |
| Asian | 0.00% | 9.19% | 5.22% |
| American Indian | 0.46% | 0.21% | 0.82% |
| Native Hawaiian | 0.00% | 0.03% | 0.18% |
| Mixed race | 2.90% | 2.53% | 3.06% |
| Other race | 1.22% | 6.35% | 4.75% |
Here are the best places to live in New Jersey
Check out the 10 safest cities in New Jersey
These are the largest cities in New Jersey
Most Dangerous States In The US