Interlaken borough, New Jersey
Official LSAD Designation: Interlaken borough • Census GEOID: 3434200
• Monmouth County
Interlaken borough is an incorporated borough in Monmouth County, New Jersey. According to official records from the Census (2025), Interlaken borough had an estimated population of 826 residents. Official Census Bureau geographic records classify this community under LSAD designation Interlaken borough (GEOID 3434200).
Local Government Administration U.S. Census Bureau GMAF
Borough Of Interlaken
Municipal
Official Title:
Mayor
Address:
100 GRASSMERE AVE, INTERLAKEN NJ 07712-4421
County Of Monmouth
County
Official Title:
Director Of Planning
Address:
1 E MAIN ST, FREEHOLD NJ 07728-2278
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 826 | 2025 |
| Median Household Income | $199,167 | 2020-2024 |
| Median Home Value | $1,058,200 | 2020-2024 |
| Land Area | 0.33 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).