California · Population 69,790 · Updated March 2026
How far your income goes in Walnut Creek
State-level tax rates that affect your costs
Walnut Creek has a significantly higher cost of living than most US cities, driven largely by premium housing costs. With a cost index of 232 (where 100 equals the national median), Walnut Creek residents can expect to pay median rent of $2,613/month while earning a median household income of $135,665/year.
The median home value in Walnut Creek, CA is $1,031,100, with typical monthly owner costs around $2,484 including mortgage, insurance, and taxes. The median rent-to-income ratio of 23.1% means housing is relatively affordable here — well below the 30% threshold that HUD considers cost-burdened.
California's top income tax rate of 13.3% is among the highest in the nation, adding to the overall cost burden. Combined with a 7.25% sales tax rate and 0.71% effective property tax rate, the overall tax environment is a factor in the total cost of living in Walnut Creek.
Common questions about living costs in Walnut Creek