Mountain Lakes borough, New Jersey
Official LSAD Designation: Mountain Lakes borough • Census GEOID: 3448480
• Morris County
Mountain Lakes borough is an incorporated borough in Morris County, New Jersey. According to official records from the Census (2025), Mountain Lakes borough had an estimated population of 4,649 residents. Official Census Bureau geographic records classify this community under LSAD designation Mountain Lakes borough (GEOID 3448480).
Local Government Administration U.S. Census Bureau GMAF
Borough Of Mountain Lakes
Municipal
Official Title:
Borough Manager
Address:
400 BOULEVARD, STE 2, MOUNTAIN LAKES NJ 07046-1520
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 | 4,649 | 2025 |
| Median Household Income | $250,000+ | 2020-2024 |
| Median Home Value | $917,000 | 2020-2024 |
| Land Area | 2.64 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).