Thurston County, Washington 's estimated 2024 population is 299,367 with a growth rate of 0.12% in the past year according to the most recent United States census data. Thurston County, Washington is the 6th largest county in Washington. The 2010 population was 253,011 and has seen a growth of 18.32% since that time.
Note: data after 2022 is projected based on recent changeTwo or more races
Black or African American
Native Hawaiian or Pacific Islander
There are 232,239 adults, (52,793 of whom are seniors) in Thurston County, Washington.
Age Dependency Ratio
Old Age Dependency Ratio
| Female | 149,148 | 50.68% |
| Male | 145,124 | 49.32% |
Average Family Size
Average Household Size
Rate of Home Ownership
Less Than 9th Grade
9th to 12th Grade
High School Graduate
High School Graduation Rate
The highest rate of high school graduation is among islander people with a rate of 96.2% .
The highest rate of bachelors degrees is among asian people with a rate of 39.64% .
Other Indo-European Languages
Asian and Pacific Island Languages
87.99% of Thurston County, Washington residents speak only English, while 12.01% speak other languages. The non-English language spoken by the largest group is Spanish , which is spoken by 4.65% of the population.
Overall Poverty Rate
Male Poverty Rate
Female Poverty Rate
The race most likely to be in poverty in Thurston County, Washington is Native , with 20.32% below the poverty level.
The race least likely to be in poverty in Thurston County, Washington is White , with 8.73% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 1.32% . Among those working part-time, it was 12.6% , and for those that did not work, the poverty rate was 15.56% .