New Jersey County Maps
Find New Jersey county and township maps.
Middlesex County, New Jersey
Find your New Jersey County by searching for your address, or by clicking on the map.
Middlesex County, New Jersey Map
A detailed map of Middlesex County. Click on a nearby County to view more information about that County. County boundaries are from the U.S. Census Bureau's 2025 TIGER/Line files.
Map of Townships in Middlesex County, New Jersey
An interactive map of county subdivisions in Middlesex County. In New Jersey, that can include Townships, Boroughs, Towns, and Villages. Boundaries are from the U.S. Census Bureau's 2024 TIGER/Line files. Find what township you are in now.
Map of Counties in New Jersey
An interactive map of Counties in New Jersey. Click on a County to view more information about that County. County boundaries are from the U.S. Census Bureau's 2025 TIGER/Line files.
About Middlesex County, New Jersey
Middlesex County is a county located in the central portion of the U.S. state of New Jersey, extending inland from the Raritan Valley region to the northern portion of the Jersey Shore. As of the 2020 United States census, the county was the state's third-most populous county with a population of 863,162, its highest decennial count ever and an increase of 53,304 (+6.6%) from the 2010 census count of 809,858, which in turn reflected an increase of 59,696 (8.0%) from the 750,162 counted in the 2000 census. The United States Census Bureau's Population Estimates Program estimated a 2025 population of 883,335, an increase of 20,173 (+2.3%) from the 2020 decennial census. The county seat of Middlesex is the city of New Brunswick, a center for the sciences, arts, and cultural activities, and the headquarters of the state's flagship academic institution, Rutgers University. The county forms part of the New York metropolitan area. Middlesex County calls itself The Greatest County in the Land.
What is this?
This site has an interactive map of New Jersey Counties. Click on the map to find your New Jersey county, and view more details. You can also search for your address and use your GPS to find your New Jersey County.
Find what County you are in, and see official New Jersey County resources and information. Find any county in the United States, along with resources and links to official County websites. See a County map and local details. Looking for what county you are currently in? Find out on this map or use your device GPS to see what county you are in.
Snow Totals in Middlesex County, New Jersey
See recent snowfall, snow depth, and records for each city and town in Middlesex County, New Jersey.
- Avenel
- Carteret
- Colonia
- Dayton
- Dunellen
- East Brunswick Township
- Edison Township
- Fords
- Heathcote
- Highland Park
- Iselin
- Jamesburg
- Kendall Park
- Laurence Harbor
- Madison Park
- Metuchen
- Middlesex
- Milltown
- Monmouth Junction
- Monroe Township
- New Brunswick
- North Brunswick Township
- Old Bridge Township
- Perth Amboy
- Piscataway Township
- Plainsboro Township
- Port Reading
- Princeton Meadows
- Sayreville
- South Amboy
- South Brunswick Township
- South Plainfield
- South River
- Spotswood
- Woodbridge Township
About this data
- State and county boundaries
- TIGER/Line Shapefiles: States, Counties and ZIP Code Tabulation Areas (2025), U.S. Census Bureau. Boundaries of states, counties and ZIP Code Tabulation Areas, the Census Bureau's areas for ZIP codes. Updated
- County subdivision boundaries
- TIGER/Line Shapefiles: County Subdivisions and Places (2024), U.S. Census Bureau. Boundaries of towns, townships, cities and villages. Updated
- County list
- Cartographic Boundary Files: Counties (2024), U.S. Census Bureau. County names and extents, with Wikipedia links from Wikidata. Updated