States › New Jersey › Counties
Mercer County, New Jersey
What we have for Mercer County today, and what is coming.
Basics
- County code (FIPS): 34021
- Land area: 224 square miles
- Population: 387,340
Federal money spent here
Fiscal year 2026: $5.1 billion in federal contracts, grants, loans and other awards for work done in Mercer County.
Who represents Mercer County
U.S. Senate (whole state): Cory A. Booker (Democrat), Andy Kim (Democrat).
U.S. House districts that include part of this county
| District | Member | Share of county land |
|---|---|---|
| Congressional District 12 | Bonnie Watson Coleman (Democrat) | 56.2% |
| Congressional District 3 | Herbert C. Conaway, Jr. (Democrat) | 43.8% |
State senate districts
| District | Member | Share of county land |
|---|---|---|
| State Senate District 15 | Shirley Turner (Democratic) | 57.8% |
| State Senate District 14 | Linda Greenstein (Democratic) | 34.2% |
| State Senate District 16 | Andrew Zwicker (Democratic) | 8% |
State house / assembly districts
| District | Member | Share of county land |
|---|---|---|
| Assembly District 15 | Anthony Verrelli (Democratic), Verlina Reynolds-Jackson (Democratic) | 57.8% |
| Assembly District 14 | Tennille McCoy (Democratic), Wayne DeAngelo (Democratic) | 34.2% |
| Assembly District 16 | Mitchelle Drulis (Democratic), Roy Freiman (Democratic) | 8% |
Matched by district number using the U.S. Census Bureau 2020 county–district relationship files (land area overlap; districts may have been redrawn since). Your exact district depends on your address: U.S. House · state legislators.
County government
Find the official county website and contacts in the USA.gov local government directory or the National Association of Counties explorer.
Sources: U.S. Census Bureau Gazetteer (county list, public domain); USAspending.gov (U.S. Treasury). Built 2026-11-03 15:28.