Mill Creek, WA
Population 20,846 · Washington
About Mill Creek, WA
Mill Creek is a mid-sized city in Washington with a population of 20,846 residents. The median household income is $121,578 per year, which is above the national average. The median age in Mill Creek is 38.8 years.
Housing in Mill Creek has a median home value of $836,300 and median monthly rent of $2,197. Of the 9,151 total housing units, the majority are owner-occupied, with 5,065 owner-occupied and 3,408 renter-occupied units.
The unemployment rate in Mill Creek is 4.5% and the poverty rate is 4.9%. 53.7% of residents hold a bachelor's degree or higher. The average commute time is 32.9 minutes.
Cost of Living in Mill Creek, WA
Compared to national averages, Mill Creek has a median household income of $121,578 (62% above the national median of $75,149). Home values average $836,300, which is 241% above the national median. Monthly rent at $2,197 is 89% above the US average of $1,163. Within Washington, Mill Creek's income is 34% above the state average of $90,795, and home values are 82% above the state median of $460,491.
Why Live in Mill Creek, WA?
Mill Creek offers a strong local economy with a median household income of $121,578, well above the national average, and a well-educated community where 53.7% of residents hold a bachelor’s degree or higher, and a low poverty rate of 4.9%, better than the national average.
Potential considerations include a competitive housing market where the typical home costs $836,300. However, Mill Creek’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
Mill Creek has a population of 20,846 with a median age of 38.8 years. Compare Mill Creek with other cities to see how it stacks up, or explore all cities in Washington.
Similar Cities Near Mill Creek
Cities in Washington with a similar population size.
| City | Population | Median Income | Home Value | |
|---|---|---|---|---|
| Covington | 20,957 | $126,730 | $590,100 | Compare |
| Bothell West | 21,014 | $144,941 | $757,700 | Compare |
| Silverdale | 21,046 | $101,445 | $507,600 | Compare |
| Arlington | 20,599 | $84,919 | $492,600 | Compare |
| Battle Ground | 21,293 | $100,185 | $452,000 | Compare |
| Mukilteo | 21,312 | $122,612 | $830,000 | Compare |
| Mountlake Terrace | 21,419 | $101,404 | $606,100 | Compare |
| Five Corners | 21,444 | $102,423 | $432,800 | Compare |
Demographics
Racial & Ethnic Composition
Economy & Education
Housing
Other Cities in Washington
Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
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Frequently Asked Questions about Mill Creek
What is the population of Mill Creek, WA?
The population of Mill Creek, WA is 20,846 according to the latest Census data.
What is the median household income in Mill Creek?
The median household income in Mill Creek, WA is $121,578 per year.
What is the median home value in Mill Creek?
The median home value in Mill Creek, WA is $836,300.
What is the average rent in Mill Creek?
The median monthly rent in Mill Creek, WA is $2,197.
What is the unemployment rate in Mill Creek?
The unemployment rate in Mill Creek, WA is 4.5%.