Millstone
Borough in Somerset County, New Jersey

Millstone is a borough in Somerset County, New Jersey, with 448 residents (2020 Census). It sits at 56 ft (17 m) above sea level. The nearest town is Blackwells Mills, 1.3 miles S.
- 448residents (2020 Census)
- 56 ftelevation · 17 m
- 0.7 sq miland area · 1.8 km²
- 658 / sq mipopulation density
- 08890ZIP code
About Millstone
Millstone is a borough in Somerset County, in the U.S. state of New Jersey. The borough was originally known as Somerset Courthouse and was the county seat. As of the 2020 United States census, the borough's population was 448, an increase of 30 (+7.2%) from the 2010 census count of 418, which in turn reflected an increase of 8 (+2.0%) from the 410 counted in the 2000 census.
Millstone was incorporated as a borough by an act of the New Jersey Legislature on May 14, 1894, from portions of Hillsborough Township, based on the results of a referendum held that day. The borough was reincorporated on March 12, 1928. The borough was named for the Millstone River (a major tributary of the Raritan River), whose name derives from an incident in which a millstone was dropped into it.
A historic district in Millstone, including 58 buildings, was added to the National Register of Historic Places in 1976. The borough possesses a military significance for 1700–1749, 1750–1799, 1850–1874.
New Jersey Monthly magazine ranked Millstone as its 7th best place to live in its 2008 rankings of the "Best Places To Live" in New Jersey.
Text: Wikipedia · CC BY-SA 4.0
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Living in Millstone
- Median household income
- $141,709
- Median home value
- $494,500
- Median rent
- $1,375/mo
- Median age
- 38.5
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Open in Google Maps ›Millstone, NJ population
Millstone had 448 residents in the 2020 Census.
| 2020 Census | 448 |
|---|---|
| Density | 658 per sq mi (254 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Millstone at a glance
| State | New Jersey (NJ) |
|---|---|
| County | Somerset County |
| Type | Borough |
| Population | 448 (2020) |
| Land area | 0.68 sq mi (1.8 km²) |
| Water area | 0.02 sq mi (0.05 km²) |
| Elevation | 56 ft (17 m) |
| Coordinates | 40.4999° N, 74.5955° W |
| ZIP code | 08890 |
| Official website | millstoneboro.org |
| Census code (GEOID) | 3446590 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Millstone
- Blackwells Mills1.3 mi S
- East Millstone1.4 mi E
- Weston1.9 mi NE
- Zarephath2.7 mi NE
- Franklin2.9 mi SE
- Manville2.9 mi N
- Middlebush3.2 mi E
- Pleasant Plains3.6 mi S
- Franklin Center3.6 mi NE
- Six Mile Run3.8 mi SE
- Belle Mead3.9 mi SW
- Hillsborough3.9 mi W
Straight-line distance between town centers.
Frequently asked questions about Millstone
What county is Millstone in?
Millstone is in Somerset County, New Jersey.
What is the population of Millstone, NJ?
448 people lived in Millstone at the 2020 Census.
What is the ZIP code of Millstone, NJ?
The ZIP code of Millstone is 08890.
What is the elevation of Millstone?
56 feet (17 m) above sea level.
What towns are near Millstone?
Blackwells Mills (1.3 mi), East Millstone (1.4 mi), Weston (1.9 mi), Zarephath (2.7 mi), Franklin (2.9 mi).
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