The Town FilesMercer County, New Jersey
385,864 people. The median home is worth $377,700 (typical New Jersey town: $435,600) and the median household earns $100,645.
Towns in Mercer County
| Town | People | Median home | Income | Median age |
|---|---|---|---|---|
| Hamilton | 92,297 | $335,500 | $100,771 | 42.0 |
| Trenton | 90,871 | $160,700 | $52,537 | 34.8 |
| Ewing | 37,264 | $294,400 | $91,267 | 37.9 |
| Lawrence | 33,077 | $439,700 | $130,142 | 40.2 |
| Princeton | 30,681 | $1,050,600 | $192,079 | 28.5 |
| East Windsor | 30,045 | $397,400 | $105,208 | 42.6 |
| West Windsor | 29,518 | $776,400 | $197,190 | 42.1 |
| Hopewell | 17,491 | $561,900 | $178,167 | 41.9 |
| Robbinsville | 15,476 | $568,300 | $169,450 | 42.1 |
| Mercerville | 13,447 | $358,600 | $128,277 | 45.1 |
| Hamilton Square | 12,679 | $397,000 | $138,162 | 44.9 |
| White Horse | 9,791 | $308,200 | $105,758 | 43.4 |
| Twin Rivers | 7,787 | $301,400 | $100,833 | 37.6 |
| Yardville | 6,965 | $360,100 | $103,274 | 46.4 |
| Hightstown | 5,900 | $342,600 | $108,987 | 40.6 |
| Lawrenceville | 3,751 | $411,900 | $122,614 | 43.2 |
| The College of New Jersey | 3,701 | — | — | 20.0 |
| Robbinsville Center | 3,164 | $526,300 | $134,388 | 42.8 |
| Groveville | 3,106 | $405,600 | $112,188 | 41.0 |
| Pennington | 2,802 | $672,900 | $192,586 | 47.8 |
People and housing
| Mercer County | Typical New Jersey town | |
|---|---|---|
| Median home value | $377,700 | $435,600 |
| Median rent | $1,623 | $1,774 |
| Median household income | $100,645 | $111,891 |
| Median age | 39.5 | 42.7 |
| Bachelor's degree or higher | 45.4% | 44.1% |
| Below the poverty line | 10.3% | 5.7% |
Jobs and pay
264,154 jobs in 2024, average pay $90,503 a year.
Storms since 1996
NOAA recorded 1,115 storm events in Mercer County from 1996 to 2026, with 14 deaths.
Federal disaster declarations
Mercer County has been included in 28 FEMA declarations since 1953.
| Declared | Incident | Declaration |
|---|---|---|
| September 5, 2021 | Hurricane | DR-4614: Remnants Of Hurricane Ida |
| September 2, 2021 | Hurricane | EM-3573: Remnants Of Hurricane Ida |
| March 25, 2020 | Biological | DR-4488: Covid-19 Pandemic |
| March 13, 2020 | Biological | EM-3451: Covid-19 |
| March 14, 2016 | Severe Storm | DR-4264: Severe Winter Storm And Snowstorm |
| October 30, 2012 | Hurricane | DR-4086: Hurricane Sandy |
Sources: U.S. Census Bureau ACS 2020–2024; BLS QCEW and LAUS; NOAA Storm Events; FEMA OpenFEMA (not endorsed by FEMA).