Thurston County: Median household income Note: The Consumer Price Index (CPI) is a measure of inflation. Here we adjusted dollar values by the CPI-U, which is the most commonly used CPI. Using the CPI to put dollar values in “real” terms makes it easier to see “inflation-free” change over time. Our base year is 2023, which means all dollar values are in terms of 2023 dollars. For more information, see (http://www.bls.gov/cpi/home.htm) Source: 1979: U.S. Bureau of the Census, Census of Population and Housing, (https://www.census.gov/programs-surveys/decennial-census/data/tables.1980.html); 1989 and 1999: U.S. Bureau of the Census, Census of Population and Housing, American Factfinder, (http://factfinder2.census.gov/); 2000-2021: U.S. Bureau of the Census, Small Area Income and Poverty Estimates, (https://www.census.gov/data-tools/demo/saipe/#/?map_geoSelector=aa_c); DATE LAST UPDATED: March 22, 2024; CPI updated March 22, 2024.