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CITY

Mill Creek

Washington · 20,902 residents (2025 est.) · 4.644 sq mi
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The short version

Mill Creek is significantly wealthier than the US average, with a median household income of $124,364. The city has grown rapidly, with population up 82% since 2000. 56% of adults hold a bachelor's degree or higher, well above the national rate of 36%. Median home value has roughly tripled since 2000, reaching $903,800. It ranks in the top 5% of US cities for household income. Households here earn about 27% more than the Washington median.

At a glance
Wealthier
above the US median
US median: $82,259
Mid-age
median age 39.3
US median: 38.9
More educated
56% hold a bachelor's degree
US average: 36%
Less affordable
home values up 67%, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
20,956
+82%since 2000
from 11,525 in 2000
1990 – 2025
Population density
4,512 / sq mi
+24%since 2009
from 3,638 / sq mi in 2009
US average: 281
Median age
39.3
+2%since 2000
from 38.6 in 2000
US average: 38.9

PEP 2025 EST:20,902 residents (Census Bureau Vintage 2025, released March 2026)

Population, 1990 – 2024
6K10K14K18K22K1990201020202024Mill Creek
202421K
1990201020202024
Age distribution, 2024
Under 55.6%(1,165)
US avg: 5.6%
5 to 95.1%(1,069)
US avg: 6%
10 to 146.7%(1,401)
US avg: 6.4%
15 to 196.7%(1,410)
US avg: 6.6%
20 to 244.9%(1,030)
US avg: 6.5%
25 to 3414.2%(2,973)
US avg: 13.7%
35 to 4415.5%(3,242)
US avg: 13.2%
45 to 5415.3%(3,207)
US avg: 12.2%
55 to 6411.1%(2,318)
US avg: 12.7%
65 to 748.2%(1,708)
US avg: 10.2%
75 to 844.6%(963)
US avg: 5.1%
85 and over2.2%(470)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$124,364
−2%inflation adjusted, since 2000
from $69,702 in 2000
US average: $82,259
1990 – 2024
Per capita income
$68,073
+88%since 2000
from $36,234 in 2000
US average: $44,673
Households earning $100K+
70.5%
+14.4 ptssince 2009
from 56.1% in 2009
US average: 53.3%
Poverty rate
6.4%
+2.9 ptssince 2000
from 3.5% in 2000
US average: 12.5%
Income inequality (Gini)
0.447
+20%since 2010
from 0.374 in 2010
US average: 0.476
Workforce by industry, 2024
Retail trade13.5%
US avg: 9.9%
Information11.9%
US avg: 10.8%
Other services7.6%
US avg: 6.7%
Public administration5%
US avg: 4.8%
Finance & insurance3.7%
US avg: 5.9%
Arts, entertainment, food3.5%
US avg: 1.9%
Wholesale trade3.3%
US avg: 6.9%
Professional, scientific, technical2.6%
US avg: 5.1%
Transportation & warehousing2%
US avg: 2.2%
Education & health services1.1%
US avg: 0.9%
Agriculture, forestry, fishing0.5%
US avg: 1.6%
Construction0.5%
US avg: 1.2%
Manufacturing0%
US avg: 0.4%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Median home value
$903,800
+67%inflation adjusted, since 2000
from $296,300 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$2,249
+38%inflation adjusted, since 2000
from $894 in 2000
US average: $1,442
Owner-occupied
59.0%
−8.0 ptssince 2000
from 67.0% in 2000
41.0% rent
Vacancy rate
5.9%
+3.8 ptssince 2009
from 2.1% in 2009
US average: 10.0%
Owner cost-burdened
24.6%
−5.8 ptssince 2009
from 30.4% in 2009
US average: 22.9%
Renter cost-burdened
46.6%
+5.2 ptssince 2009
from 41.4% in 2009
US average: 47.4%
Afford Score
7.3
+40%since 2009
from 5.2 in 2009
2009 – 2024
Our index: median home value divided by median household income. Lower is more affordable.
Gentrification Score
64
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
RELATED:See current rent listings in Mill Creek on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic79.7%(9,184)
Black1.4%(161)
Hispanic / Latino3.3%(375)
Asian12.6%(1,454)
Other0%
2024
White, non-Hispanic61.3%(12,836)
Black3.2%(674)
Hispanic / Latino8.6%(1,803)
Asian20.3%(4,260)
Other6.6%(1,383)
Diversity Score
71
+42%since 2009
from 50 in 2009
2009 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Section 04 · Origins

Detailed origins & ancestry

Hispanic origin
Mexican3.1%(652)
Venezuelan3.1%(642)
Guatemalan0.5%(96)
Dominican0.4%(80)
Puerto Rican0.3%(71)
Cuban0.3%(55)
Honduran0.2%(43)
Ecuadorian0.2%(33)
Nicaraguan0.1%(29)
Spaniard0.1%(22)
+ 2 more hispanic origin groups with data
Salvadoran0.1%(18)
Asian origin
Asian Indian4.3%(896)
Chinese3.8%(791)
Korean3.6%(751)
Filipino2.4%(505)
Vietnamese2.3%(475)
Japanese0.8%(159)
Malaysian0.7%(156)
Pakistani0.6%(122)
Taiwanese0.6%(121)
Cambodian0.3%(65)
Thai0.2%(52)
Pacific Islander origin
Chamorro1.1%(221)
Samoan0.2%(49)
Ancestry
English14.1%(2,947)
German11.6%(2,427)
Irish8.9%(1,869)
Norwegian5.4%(1,127)
Dutch3.1%(647)
Scottish3%(633)
Arab3%(623)
Italian2.9%(613)
Syrian2.6%(547)
Swedish2.5%(534)
Danish2%(418)
Bulgarian1.8%(373)
+ 30 more ancestry groups with data
French1.8%(370)
American1.6%(336)
Finnish1.1%(238)
Polish0.9%(189)
West Indian0.9%(180)
Portuguese0.7%(148)
Swiss0.7%(148)
Welsh0.7%(137)
Russian0.6%(134)
British0.5%(112)
Romanian0.5%(103)
Haitian0.5%(102)
Hungarian0.5%(100)
Canadian0.5%(97)
Moroccan0.3%(62)
Greek0.3%(57)
Nigerian0.3%(56)
Jamaican0.2%(45)
Iranian0.1%(27)
Ukrainian0.1%(27)
Belgian0.1%(25)
Austrian0.1%(19)
Australian0.1%(17)
Egyptian0.1%(14)
Czech0.1%(14)
Turkish0%(7)
RANKED:Largest English population · Largest German population · Largest Irish population · Largest Norwegian population · Largest Asian Indian population
Section 05

Education

Bachelor's degree or higher
56.0%
+8.3 ptssince 2000
from 47.7% in 2000
US average: 35.6%
High school or higher
96.0%
+1.0 ptssince 2000
from 95.0% in 2000
US average: 89.6%
Graduate degree
22.2%
+5.5 ptssince 2000
from 16.7% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
33.0 min
+46%since 2000
from 22.6 min in 2000
US average: 26.5
Drive alone to work
56.9%
−18.1 ptssince 2009
from 75.0% in 2009
US average: 68.9%
Carpooled to work
7.4%
−4.4 ptssince 2009
from 11.7% in 2009
US average: 8.5%
Public transit
4.4%
−0.2 ptssince 2009
from 4.6% in 2009
US average: 3.2%
Worked from home
29.9%
+24.5 ptssince 2009
from 5.4% in 2009
US average: 15.0%
Walked to work
0.3%
−1.6 ptssince 2009
from 1.9% in 2009
US average: 2.4%
Biked to work
0.2%
−0.4 ptssince 2009
from 0.6% in 2009
US average: 0.4%
No vehicle available
4.6%
+0.7 ptssince 2009
from 3.9% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
4.5%
−1.9 ptssince 2011
from 6.4% in 2011
US average: 5.2%
Labor force participation
69.5%
+2.0 ptssince 2011
from 67.4% in 2011
US average: 63.5%
Self-employed
10.0%
+2.5 ptssince 2009
from 7.5% in 2009
US average: 13.1%
Management & professional
61.4%
−11.4 ptssince 2009
from 72.8% in 2009
US average: 42.5%
Section 08

People & community

Male
50.2%
+1.1 ptssince 2009
from 49.1% in 2009
Female
49.8%
−1.1 ptssince 2009
from 50.9% in 2009
Foreign born
24.5%
+7.6 ptssince 2009
from 16.9% in 2009
US average: 14.1%
Veterans
5.0%
−43.6 ptssince 2009
from 48.6% in 2009
US average: 6.2%
With a disability
9.1%
+2.2 ptssince 2012
from 6.9% in 2012
US average: 13.3%
Uninsured
3.1%
−86.8 ptssince 2013
from 89.9% in 2013
US average: 8.4%
Broadband at home
96.6%
+6.9 ptssince 2017
from 89.7% in 2017
US average: 91.0%
English only at home
75.7%
+1.4 ptssince 2016
from 74.4% in 2016
US average: 77.7%
Spanish at home
6.3%
+2.9 ptssince 2016
from 3.4% in 2016
US average: 13.6%
Marital status
Men 15+
Never married31.4%(2,733)
Married57.7%(5,017)
Widowed0.5%(41)
Divorced10.4%(905)
Women 15+
Never married23.8%(2,051)
Married58.3%(5,025)
Widowed7.1%(616)
Divorced10.8%(933)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
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Compare Mill Creek to nearby cities

MILL CREEK VS
Martha Lake
Income$124,494same
Home value$785,400−13%
Population22,634+8%
SEE FULL COMPARISON →
MILL CREEK VS
Lake Stickney
Income$94,020−24%
Home value$620,300−31%
Population15,890−24%
SEE FULL COMPARISON →
MILL CREEK VS
Mill Creek East
Income$192,937+55%
Home value$905,400same
Population25,453+22%
SEE FULL COMPARISON →
MILL CREEK VS
Eastmont
Income$138,912+12%
Home value$784,000−13%
Population23,721+13%
SEE FULL COMPARISON →
Frequently asked

How many people live in Mill Creek, Washington?

Mill Creek, Washington has about 20,956 residents according to the 2024 American Community Survey.

What is the median household income in Mill Creek, Washington?

The typical household in Mill Creek, Washington earns about $124,364 a year. Half of households make more than that, and half make less.

Is Mill Creek, Washington expensive?

In Mill Creek, Washington, the median home is worth about $903,800, and the typical rent is about $2,249 a month.

How educated are people in Mill Creek, Washington?

About 56.0% of adults age 25 and over in Mill Creek, Washington hold a bachelor's degree or higher.

What is the poverty rate in Mill Creek, Washington?

About 6.4% of people in Mill Creek, Washington live below the federal poverty line.

Has Mill Creek, Washington grown since 1990?

Yes, Mill Creek, Washington has grown since 1990. The population has added about 13,784 residents, a change of about 192 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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