Thurston County's median household income was $66,993 in 2015, according to estimates by the Washington State Office of Financial Management. Thurston County was estimated to have the third-highest median household income of all counties in Washington in 2015 behind King and Snohomish Counties.
The median household income for the County remained down from the peak seen in 2008 ($68,938 in inflation-adjusted 2016 dollars), but has increased annually since 2010.
Thurston County's five-year average median household income from 2010 to 2014 was $62,286 according to American Community Survey (ACS) data. Rainier had the highest median income ($66,713), followed by Tumwater ($62,258). Bucoda had the lowest median household income among Thurston County communities ($35,000).