Homes Under $400K in Williamstown, NJ

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24 of 84 Listings

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Jeffrey Kagan

Realty.com

Lic. #1327489

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New21Active
$115,000
2 bd · 2 ba · 910 sqft
112 Moss Ln, Williamstown, NJ
Thomas P. Duffy · Keller Williams Realty - Washington Township
20Active
$115,000
2 bd · 2 ba · 910 sqft
110 Moss Ln, Williamstown, NJ
Thomas P. Duffy · Keller Williams Realty - Washington Township
Active
$225,000
3 bd · 1 ba · 900 sqft
810 Whitehall Rd, Williamstown, NJ
Carolyn A Warner · Penzone Realty

Listing data & MLS disclosures

Bright MLS: The data relating to real estate for sale on this website appears in part through the BRIGHT Internet Data Exchange program, a voluntary cooperative exchange of property listing data between licensed real estate brokerage firms in which Realty.com participates, and is provided by BRIGHT through a licensing agreement. The information provided by this website is for the personal, non-commercial use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Some properties which appear for sale on this website may no longer be available because they are under contract, have Closed or are no longer being offered for sale.
Listing information ©2026 BRIGHT MLS®. All Rights Reserved, Information deemed reliable but not guaranteed. Data Last Updated: 2026-10-03 04:06:08 UTC

About Homes Under $400K in Williamstown, NJ

Homes Under $400K in Williamstown, NJ: 84 active listings as of October 3, 2026, 10:26 UTC.

Property types among these 84 listings, by the property type each listing’s MLS reports, spelled as the MLS spells it. Types with fewer than 5 listings, and listings whose MLS reports no type, are not shown, so the shares can total less than 100%.
Property type	Listings	Share
Single Family Residence	37	44.0%
Manufactured Home	14	16.7%
Townhouse	8	9.5%
Mobile Home	5	6.0%

Williamstown housing market

September 2026 · This period is still settling

Selling at 100.0% of asking price

Sales here are closing essentially at asking. MLS · 36 sales · as of Sep 25, 2026

Homes that sold · County records, as of Sep 18, 2026

Median sale price: $330,000$215,000–$430,000 typical range
Price per sq. ft.: $222
Sales: 57
Paid in cash: 31.6%

Homes on the market · MLS, as of Sep 25, 2026–Sep 27, 2026

Median list price: $369,000
Homes for sale: 107
Median days on market: 20 days

Price trend · Assessor repeat sales, as of Sep 30, 2026

Year-over-year: -12.0%

Housing stock — every home in the area, not only the ones selling or listed · Assessor records, as of Sep 3, 2026

Median home size: 1,787 sq. ft.

Williamstown, NJ community profile

Area: 55.7 sq. mi.

Source: HJN community data

Registered offenders on the map

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Registered offenders on the map

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Homes Under $400K in Williamstown, NJ

Your local brokerage

Listing data & MLS disclosures

About Homes Under $400K in Williamstown, NJ

Williamstown housing market

Homes that sold · County records, as of Sep 18, 2026

Homes on the market · MLS, as of Sep 25, 2026–Sep 27, 2026

Price trend · Assessor repeat sales, as of Sep 30, 2026

Housing stock — every home in the area, not only the ones selling or listed · Assessor records, as of Sep 3, 2026

Williamstown, NJ community profile

Explore Williamstown homes

Listing data & MLS disclosures

Your local brokerage

Your local brokerage

Williamstown, NJ community profile

Williamstown housing market

Homes that sold · County records, as of Sep 18, 2026

Homes on the market · MLS, as of Sep 25, 2026–Sep 27, 2026

Price trend · Assessor repeat sales, as of Sep 30, 2026

Housing stock — every home in the area, not only the ones selling or listed · Assessor records, as of Sep 3, 2026