
Lacey
- County:
- Thurston County
- County Seat:
- No
- Area (mi²):
- 18.565
- State:
- Washington
Lacey is a city located in Thurston County, Washington. Lacey has a 2025 population of 59,395. Lacey is currently growing at a rate of 0.91% annually and its population has increased by 4.71% since the most recent census, which recorded a population of 56,722 in 2020.
The average household income in Lacey is $99,968 with a poverty rate of 11.02%. The median age in Lacey is 37.7 years: 35.6 years for males, and 39.5 years for females.