Housing in Williamstown, NJ
Home values, rent, ownership rates, and housing market data
Housing Market Snapshot
Source: Redfin — January 2026Median Sale Price
$364,900
Median List Price
$349,000
Price Per Sq Ft
$182
Days on Market
37
Active Inventory
32
Months of Supply
1.9
Seller's market
Zillow Home Value
$360,283
ZHVI — January 2026
Price Trends
Source: RedfinMarket Competitiveness
Source: RedfinSold Above List
47.1%
Off Market in 2 Weeks
23.5%
Sale-to-List Ratio
98.9%
Buyer's market
Market Activity
Source: RedfinHomes Sold
17
New Listings
13
Pending Sales
17
Price Per Square Foot
Source: RedfinMedian Sale $/SF
$182
Median List $/SF
$221
Williamstown vs Similar Cities
Source: Census ACS / Redfin (2023)Compared to cities with 10,000 - 25,000 residents. Williamstown is highlighted.
Median Home Value
Median Rent
Median Price Per Sq Ft
Rent Burden
Census Housing Data
Source: U.S. Census Bureau ACS (2023)Median Home Value
$255,000
Median Rent
$1,262
Total Housing Units
6,082
Vacancy Rate
3.8%
Owner Occupied
79.6%
Renter Occupied
20.4%
Median Property Tax
$7,011
per year
Monthly Cost (w/ Mortgage)
$1,922
Housing Types
The current median sale price in Williamstown, NJ is $364,900 according to Redfin data. Homes spend a median of 37 days on the market. 47.1% of homes sold above asking price. The market has 1.9 months of supply. The median price per square foot is $182. The median rent is $1,262 per month (Census ACS). About 79.6% of housing units are owner-occupied. The median year homes were built is 1981. There are 6,082 total housing units.