Set in Mercer County, Mercerville-Hamilton Square is a New Jersey town. The town itself holds nothing; the country round it does. Working outwards: Mercer County Lake roughly 2.8 miles to the north-east, Gropp Lake roughly 2.9 miles and Colonial Lake roughly 3.2 miles to the north-west. At Mercer County Lake the
| Issuing agency | Who needs a license | Resident annual | Non-resident annual | Non-resident short-term | Saltwater requirement | License-free days | Official source (last verified) |
|---|---|---|---|---|---|---|---|
| New Jersey Department of Environmental Protection, Division of Fish and Wildlife | Ages 16 and older | $22.50 | $34.00 | 2-day, 7-day | Registration only | 2 days (June, September) | Agency pageVerified 2026-08-13 |
*Prices are base annual freshwater licenses and exclude vendor fees, stamps and endorsements. Where a cell reads βNot verifiedβ, the agency does not publish the figure in a format we can verify automatically.
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