Mercer County is a district of New Jersey.
Boundaries: United States Census Bureau, MAF/TIGER Database (https://www.census.gov/geographies/mapping-files/time-series/geo/carto-boundary-file.html) via geoBoundaries, public domain
| Borough of Hightstown | no seat recorded | 5 k |
| Borough of Hopewell | no seat recorded | 2 k |
| Borough of Pennington | no seat recorded | 3 k |
| City of Trenton | Trenton | 85 k |
| Township of East Windsor | no seat recorded | |
| Township of Ewing | no seat recorded | |
| Township of Hamilton | no seat recorded | |
| Township of Hopewell | no seat recorded | |
| Township of Lawrence | no seat recorded | |
| Township of Robbinsville | no seat recorded | |
| Township of West Windsor | no seat recorded |
Nothing has been written about Mercer County here, and neither Wikipedia nor Wikivoyage has an article we could draw one from. If you know the place, that makes you a better source than anything we have. Tell us what is worth knowing and where you got it.
We show Trenton as the capital of Mercer County. If that is wrong, tell us what it should be and where you read it.
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