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CITY · 2020 ACS

Mill Creek

Washington · 20,926 residents · 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 $104,951. The city has grown rapidly, with population up 82% since 2000. 50% of adults hold a bachelor's degree or higher, well above the national rate of 33%. Median home value has more than doubled since 2000, reaching $584,400. Poverty is rare here, at 4.0% of residents. Households here earn about 36% more than the Washington median.

At a glance
Wealthier
above the US median
US median: $66,278
Older
median age 41.1
US median: 38.8
More educated
50% hold a bachelor's degree
US average: 33%
Less affordable
home values up 31%, inflation adjusted
US median home: $265,253
Section 01

Population & growth

20,926
+82%since 2000
from 11,525 in 2000
1990 – 2025
4,506 / sq mi
+82%since 2000
from 2,482 / sq mi in 2000
US average: 280
41.1
+6%since 2000
from 38.6 in 2000
US average: 38.8
Population, 19902024
6K10K14K18K22K1990201020202024Mill Creek
202421K
1990201020202024
Section 02

Income & economy

$104,951
Unchangedinflation adjusted, since 2000
from $69,702 in 2000
US average: $66,278
1990 – 2024
$53,109
+47%since 2000
from $36,234 in 2000
US average: $35,364
Households earning $100K+
66.4%
+10.3 ptssince 2009
from 56.1% in 2009
US average: 43.9%
4.0%
+0.5 ptssince 2000
from 3.5% in 2000
US average: 12.8%
Workforce by industry, 2020
Retail trade15.3%
US avg: 10%
Information11.6%
US avg: 11.1%
Other services7.2%
US avg: 6.6%
Public administration5.7%
US avg: 4.7%
Wholesale trade3.7%
US avg: 6.7%
Finance & insurance2.9%
US avg: 5.5%
Transportation & warehousing2.8%
US avg: 2.5%
Arts, entertainment, food2.7%
US avg: 2%
Professional, scientific, technical2.3%
US avg: 4.7%
Education & health services0.7%
US avg: 0.8%
Agriculture, forestry, fishing0%
US avg: 1.7%
Construction0%
US avg: 1.2%
Manufacturing0%
US avg: 0.5%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

$584,400
+31%inflation adjusted, since 2000
from $296,300 in 2000
US average: $265,253
1990 – 2024
$1,813
+35%inflation adjusted, since 2000
from $894 in 2000
US average: $1,124
58.6%
−8.4 ptssince 2000
from 67.0% in 2000
41.4% rent
5.6
+31%since 2000
from 4.3 in 2000
1990 – 2024
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%
Diversity Score38.3%(4,411)
2020
White, non-Hispanic60.9%(12,754)
Black2.9%(604)
Hispanic / Latino8%(1,683)
Asian19.9%(4,166)
Other7.2%(1,512)
Diversity Score71%(14,854)
71
+85%since 2000
from 38 in 2000
1990 – 2024
Section 05

Education

49.9%
+2.3 ptssince 2000
from 47.7% in 2000
US average: 32.9%
High school or higher
96.9%
+1.9 ptssince 2000
from 95.0% in 2000
US average: 88.5%
17.2%
+0.5 ptssince 2000
from 16.7% in 2000
US average: 12.7%
Section 06

Commute & transportation

34.6 min
+53%since 2000
from 22.6 min in 2000
US average: 26.9
66.1%
−8.9 ptssince 2009
from 75.0% in 2009
US average: 75.1%
2.8%
−1.1 ptssince 2009
from 3.9% in 2009
US average: 8.4%
Section 07

Work & employment

3.5%
−2.9 ptssince 2011
from 6.4% in 2011
US average: 5.4%
69.7%
+2.3 ptssince 2011
from 67.4% in 2011
US average: 63.4%
54.2%
−18.6 ptssince 2009
from 72.8% in 2009
US average: 39.3%
Section 08

People & community

46.7%
−2.4 ptssince 2009
from 49.1% in 2009
53.3%
+2.4 ptssince 2009
from 50.9% in 2009
22.0%
+5.1 ptssince 2009
from 16.9% in 2009
US average: 13.5%
4.1%
−85.8 ptssince 2013
from 89.9% in 2013
US average: 8.8%
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Frequently asked

How many people live in Mill Creek, Washington?

Mill Creek, Washington has about 20,926 residents according to the 2020 American Community Survey.

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

The typical household in Mill Creek, Washington earns about $104,951 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 $584,400, and the typical rent is about $1,813 a month.

How educated are people in Mill Creek, Washington?

About 49.9% 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 4.0% 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 13,754 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

How we source and harmonize this data →