Washington and Santa Rosa have a similar cost of living.
When comparing Washington, DC and Santa Rosa, CA, the overall cost of living indices are 171 and 172 respectively (national median = 100). Rent is $184/month cheaper in Washington, saving renters about $2,208/year.
Median household income is $8,877/year higher in Washington. Home values also differ significantly — the median in Washington is $724,600 compared to $685,000 in Santa Rosa.
District of Columbia has a lower income tax rate, making Washington slightly more tax-friendly.
Washington vs Santa Rosa — common questions
Other cost of living comparisons for Washington and Santa Rosa