Williamstown Township is a township in Ingham County, Michigan. The housing stock consists primarily of single-family properties built between 1875 and 2022. The average home is 2,652 square feet with 4 bedrooms. Based on sales over the past 12 months, the median sale price in Williamstown Township is $464,800, with closed prices ranging from $142,000 to $950,000. That works out to a median of $161 per square foot. The Williamstown Township real estate market currently has 15 active listings and 9 pending, with asking prices from $249,900 to $1,199,000. At the current pace of 53 sales per year, Williamstown Township's 24 active listings represent 3.4 months of supply, indicating a balanced market. Homes sell in an average of 66 days on market. Sellers in Williamstown Township benefit from 53 comparable sales over the past 12 months for accurate pricing.















Per FEMA, the Williamstown Township area falls within Zone X — minimal flood hazard — where flood insurance is not mandatory. Flood zone boundaries are subject to change by FEMA map revision. Verify current status at FEMA Map Service Center before making purchasing decisions. The median annual property tax in Williamstown Township is $4,886 (2026). The median assessed value is $96,709.
Source: FEMA National Flood Hazard Layer · Source: Williamstown Twp tax records
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