Middlesex borough, New Jersey
Official LSAD Designation: Middlesex borough • Census GEOID: 3445900
• Middlesex County
Middlesex borough is an incorporated borough in Middlesex County, New Jersey. According to official records from the Census (2025), Middlesex borough had an estimated population of 14,740 residents. Official Census Bureau geographic records classify this community under LSAD designation Middlesex borough (GEOID 3445900).
Local Government Administration U.S. Census Bureau GMAF
Borough Of Middlesex
Municipal
Official Title:
Municipal Clerk
Address:
1200 MOUNTAIN AVE, MIDDLESEX NJ 08846-2700
County Of Middlesex
County
Official Title:
Director
Address:
75 BAYARD ST, NEW BRUNSWICK NJ 08901-2112
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 14,740 | 2025 |
| Median Household Income | $105,000 | 2020-2024 |
| Median Home Value | $446,400 | 2020-2024 |
| Land Area | 3.49 sq mi | Gazetteer (2026) |
| Civic & Public Services | Hospitals, Libraries, Colleges | CMS / IMLS / IPEDS |
| Schools & Districts | NCES Directory Listings | Provided by k12guides.com |
| Nearby Airports | Landing Facilities | Provided by airport-data.com |
| Climate & Weather | NOAA 30-Year Normals | 1991–2020 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).