Waukesha County, WI real estate

What the numbers say

Waukesha County, WI real estate at a glance

By AstroCore · Realtor.com, US Census and Freddie Mac data

In September 2026, the median home in Waukesha County listed for $592,450, up 3.0% from a year earlier. That is 52% above the Wisconsin median of $389,900.

Homes spent a median of 37 days on the market, slower than 35 days a year ago. That makes Waukesha County the #7 fastest-selling of 29 Wisconsin counties we track.

Homeowners in Waukesha County pay a median of $4,554 a year in property taxes on a median home value of $398,200, an effective rate of about 1.14%. The Wisconsin average is 1.42%, which makes Waukesha County the #14 lowest-tax of 72 counties in the state with published tax data.

Renters pay a median of $1,356 a month, and $1,390 for a two-bedroom. At today's prices a typical home costs about 36 times a year's rent, which generally favors renting over buying in the short term.

With 20% down and today's 7.24% average 30-year rate, the monthly payment on a $592,000 home here comes to about $4,042 including property tax and insurance. Lenders typically want that to be under 28% of income, which works out to roughly $173,000 a year (the median household here earns $106,076).