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Mercer County
Newest Listings
Buying or Selling a Home in Mercer County, NJ
Mercer County sits between New York City and Philadelphia. Its 12 towns include Trenton, the state capital and county seat, Princeton, and growing suburbs like West Windsor, Hamilton and Robbinsville. It has the shortest average commute of the central Jersey counties we cover.
Start with the newest listings above. Then use the facts below to compare towns, taxes, commutes and outdoor space. When you want a shortlist, tell us what matters to you or call (973) 577-9442.
Mercer County at a glance
Here are the numbers buyers ask about first. They give you a quick picture of the county before you look at one house.
- Population: 387,340 people in the 2020 Census (U.S. Census).
- Towns: 12 municipalities. Trenton is the county seat and the state capital.
- Typical home value: $377,700 median for owner occupied homes, Census ACS 2020 to 2024 (U.S. Census).
- Property taxes: $10,058 average residential tax bill in 2025 (NJ Division of Local Government Services). Your bill depends on the town and the assessment, so check the exact property.
- Commute: 27.1 minutes average trip to work (U.S. Census).
Getting around
- Drive: the New Jersey Turnpike, Interstate 295, Interstate 195, US Routes 1 and 130, and State Routes 29, 31 and 33 (Mercer County).
- Train: the NJ Transit Northeast Corridor stops at Princeton Junction, Hamilton and Trenton Transit Center (NJ Transit). The Princeton Dinky shuttle links downtown Princeton to Princeton Junction (NJ Transit).
- Also: the River LINE light rail runs from Trenton to Camden, and Trenton Mercer Airport is in the county.
Parks and outdoor space
- Mercer County Park, more than 2,500 acres across West Windsor, Hamilton and Lawrence (Mercer County Park Commission).
- Mercer Meadows in Lawrence, including a 435 acre grassland at Pole Farm and a link to the Lawrence Hopewell Trail (Park Commission).
- Baldpate Mountain for hiking, and Washington Crossing State Park in Titusville (NJ DEP).
- More than 27 percent of the county is preserved open space (Visit Mercer County).
Schools
The state lists 9 public school districts in Mercer County, plus 9 charter schools and county special services and vocational districts. Several are regional, such as West Windsor Plainsboro and Hopewell Valley, so the district name may not match the town. Always confirm the school district for the exact address with the district office before you buy (NJ Department of Education district list).
Towns in Mercer County
Prices change a lot from town to town in Mercer County. This table shows some of the best known towns, using Census figures, so you can compare them side by side.
| Town | 2020 population | Median home value |
|---|---|---|
| Hamilton | 92,297 | $335,500 |
| Trenton | 90,871 | $160,700 |
| Ewing | 37,264 | $294,400 |
| Lawrence | 33,077 | $439,700 |
| Princeton | 30,681 | $1,050,600 |
| East Windsor | 30,045 | $397,400 |
| West Windsor | 29,518 | $776,400 |
| Hopewell Township | 17,491 | $561,900 |
| Robbinsville | 15,476 | $568,300 |
Source: U.S. Census QuickFacts, median value of owner occupied homes, ACS 2020 to 2024. Market prices today can be higher or lower.
Questions buyers ask us about Mercer County
- What will my taxes be? The 2025 county average is $10,058, but each town is different. We pull the real tax record for any home you like.
- Where do I park for the train? Princeton Junction has 831 spaces with daily and permit options. Check current NJ Transit rules for Hamilton and Trenton.
- Which school district is it in? Confirm by address, since regional districts cover more than one town.
- Where can I get outside? Mercer County Park, Mercer Meadows, Baldpate Mountain and Washington Crossing State Park.
Looking nearby too? See our Middlesex County, Somerset County and Hunterdon County pages.
Plan your next step
Buying? Our buyer guide explains the process from preparation through closing. Selling? Review our selling guide and pricing approach before choosing a plan. If speed matters, request a cash-offer discussion; submitting an inquiry does not guarantee an offer or a closing date.