Mount Arlington borough, New Jersey
Official LSAD Designation: Mount Arlington borough • Census GEOID: 3448690
• Morris County
Mount Arlington borough is an incorporated borough in Morris County, New Jersey. According to official records from the Census (2025), Mount Arlington borough had an estimated population of 5,985 residents. Official Census Bureau geographic records classify this community under LSAD designation Mount Arlington borough (GEOID 3448690).
Local Government Administration U.S. Census Bureau GMAF
Borough Of Mount Arlington
Municipal
Official Title:
Mayor
Address:
419 HOWARD BLVD, MOUNT ARLINGTON NJ 07856-1129
County Of Morris
County
Official Title:
Clerk Of The Freeholder Board
Address:
PO BOX 900, MORRISTOWN NJ 07963-0900
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 5,985 | 2025 |
| Median Household Income | $92,264 | 2020-2024 |
| Median Home Value | $422,900 | 2020-2024 |
| Land Area | 2.14 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).