Market Report
Williamstown, MA Housing Market
The median sale price is $689,500 (+129.8% year over year). Homes are selling in a median of 57 days.
Prices & Activity
Median Sale Price
$690K
+129.8% YoYDays on Market
57
+12 days YoYMonths of Supply
4.5
-0.5 mo YoYActive Inventory
9
+80.0% YoYSale-to-List
91.9%
+11.9 pts YoYSource: Redfin Data Center (through Dec 2025)
Median Sale Price — Williamstown, MA
Days on Market — Williamstown, MA
Growth & Supply
Population
129,430
U.S. Census Bureau, ACS 2024 5-Year Estimates (B01003) — Berkshire County
Median Household Income
$76K
U.S. Census Bureau, ACS 2024 5-Year Estimates (B19013) — Berkshire County
Renter-Occupied Homes
30.1%
U.S. Census Bureau, ACS 2024 5-Year Estimates (B25003) — Berkshire County
Migration — Berkshire County
Avg income of movers (latest year): in $101K · out $85K
IRS Statistics of Income, County-to-County Migration Data (through 2023)
Unemployment Rate — Berkshire County
Most recent month is preliminary and subject to revision
U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics (through Jun '26)
New Construction Permits — Berkshire County
144 housing units permitted in the last 12 months (+4% vs the prior 12 months) — 19 in 5+ unit buildings
U.S. Census Bureau, Building Permits Survey (through Jun '26)