Mercer County
Mercer County is a county located in the U.S. state of New Jersey. Its county seat is Trenton, also the state capital, prompting its nickname The Capital County. Mercer County alone constitutes the Trenton–Princeton metropolitan statistical area and is considered part of the New York combined statistical area by the U.S. Census Bureau, but also directly borders the Philadelphia metropolitan area and is included within the Federal Communications Commission's Philadelphia Designated Media Market Area. The county is part of the Central Jersey region of the state.
Governance bodies
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Cities and towns 5
Townships 7
Reference data (Census of Governments 2022)
- Census ID (PID6)
- 170103
- FIPS state
- 34
- FIPS county
- 021
- FIPS place
- 99021
- Census record name
- COUNTY OF MERCER
- Mailing address
- PO BOX 8068, TRENTON 08650