Mill Creek, Washington Population 2024

20,686

Mill Creek Demographics

According to the most recent ACS, the racial composition of Mill Creek was:

  • White: 62.51%
  • Asian: 20.4%
  • Two or more races: 8.4%
  • Black or African American: 4.63%
  • Other race: 2.96%
  • Native Hawaiian or Pacific Islander: 0.73%
  • Native American: 0.38%
Land Area (mi²)
4.6 sq mi
Density (mi²)
4,454.80/sq mi
Growth Since 2020
-1.07% (-224)
The current population of Mill Creek, Washington is 20,686 based on our projections of the latest US Census estimates (released May 2024). The last official US Census in 2020 recorded the population at 20,910.

Population by Race

Race
Population
Percentage (of total)
White13,00062.51%
Asian4,24220.4%
Two or more races1,7478.4%
Black or African American9634.63%
Other race6162.96%
Native Hawaiian or Pacific Islander1510.73%
Native American780.38%

White

Asian

Two or more races

Black or African American

Other race

Native Hawaiian or Pacific Islander

Native American

Mill Creek Population by Race

Mill Creek Population Pyramid 2024

Mill Creek Median Age

38.3

Total

37.6

Male

38.9

Female

Mill Creek Adults

There are 16,182 adults, (3,114 of whom are seniors) in Mill Creek.

Mill Creek Age Dependency

59.1

Age Dependency Ratio

23.8

Old Age Dependency Ratio

35.3

Child Dependency Ratio

Mill Creek Sex Ratio

Female10,96952.74%
Male9,82847.26%

Mill Creek Population by Age

Mill Creek Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All8,3782.4760.839.2
Married4,7393.1179.320.7
Non Family2,7331.1836.563.5
Female6573.0134.165.9
Male2493.074555

3.04

Average Family Size

2.47

Average Household Size

60.8%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Mill Creek Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade3632.5%
Associates Degree1,3669.39%
Bachelors Degree4,79432.95%
Graduate Degree2,86019.66%
High School Graduate1,68811.6%
Less Than 9th Grade770.53%
Some College3,40123.38%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Mill Creek Educational Attainment by Sex (over 25)

Mill Creek Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White9,3879,0544,818
Asian2,8912,8082,020
Hispanic892868340
2+ Races736736458
Black68268297
Other Race42140483
Islander15115190
Native American62629

The highest rate of high school graduation is among black people with a rate of 100%.

The highest rate of bachelors degrees is among asian people with a rate of 69.87%.

Mill Creek Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$101,415$112,969$70,144
Graduate Degree$111,193$151,364$96,890
High School Graduate$44,195$63,712$36,989
Less Than 9th Grade$2,499$2,499$0
Overall$79,217$100,000$55,159
Some College$52,750$74,107$39,218

$79,217

Average Earnings

$100,000

Average Male

$55,159

Average Female

Mill Creek Earnings by Educational Attainment

Mill Creek Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Mill Creek Language

74.72% of Mill Creek residents speak only English, while 25.28% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 14.58% of the population.

Mill Creek Language

Mill Creek Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White12,4076144.95%
Black96318118.8%
Asian4,242591.39%
Hispanic1,431151.05%
Multiple1,72880.46%

4.2%

Overall Poverty Rate

4.62%

Male Poverty Rate

3.82%

Female Poverty Rate

Poverty in Mill Creek

The race most likely to be in poverty in Mill Creek is Black, with 18.8% below the poverty level.

The race least likely to be in poverty in Mill Creek is Multiple, with 0.46% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.74%. Among those working part-time, it was 9.31%, and for those that did not work, the poverty rate was 7.7%.

Mill Creek Poverty

rate

Rate
Poverty
Less Than 9th Grade18.41%
High School4.89%
Some College4.49%
Bachelors or Greater3.72%

Mill Creek Poverty Rate by Education

rate

Rate
Poverty
Male Unemployed5.02%
Male Employed3.74%
Female Unemployed3.45%
Female Employed2.66%

Mill Creek Poverty Rate by Employment Status and Sex

Mill Creek Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$152,779$184,095
Households$118,276$152,074
Married Families$167,854$-999,999,999
Non Families$56,993$77,635

mean

median

Income by Household Type

Mill Creek Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

58.4%

Overall Marriage Rate

63.8%

Male Marriage Rate

53.6%

Female Marriage Rate

Mill Creek Married by Age and Sex

male

female

Mill Creek Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 55-64.

Mill Creek Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Mill Creek Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

909

Number of Veterans

852

Male Veterans

57

Female Veterans

War
Veterans
Vietnam361
First Gulf War307
Second Gulf War252
Korea38
World War II0

Mill Creek Veterans by War

count

Age Group
Veterans
35 to 54267
65 to 74249
75+173
55 to 64130
18 to 3490

Mill Creek Veterans by Age

count

Name
Veterans
% of Total
White6776.34%
Black8011.66%
Islander5637.09%
Asian451.49%
Hispanic423.7%
Native American2540.32%
Other Race173.28%
2+ Races90.92%

Mill Creek Veterans by Race

Mill Creek Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.17%

Veteran Poverty Rate

14.41%

Veteran Disability Rate

Mill Creek Veterans by Education

LaborForceParticipation

68.7%

Labor Force Participation

65.3%

Employment Rate

4.2%

Unemployment Rate

Mill Creek Employment by Age

LaborForceParticipation

Mill Creek Employment by Race

LaborForceParticipation

Mill Creek Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

45.83%

Born in Mill Creek

76.9%

Native Born

23.1%

Foreign Born

10.67%

Non Citizen

12.43%

Naturalized

Place of Birth

76.9% of Mill Creek residents were born in the United States, with 45.83% having been born in Washington. 10.67% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Mill Creek Place of Birth

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
202920,406-56-0.27%
202820,462-56-0.27%
202720,518-56-0.27%
202620,574-56-0.27%
202520,630-56-0.27%
202420,686-56-0.27%
202320,742-112-0.54%
202220,854-149-0.71%
202121,003930.44%
202020,91060.03%
201920,904-97-0.46%
201821,0011020.49%
201720,8997243.59%
201620,1753011.51%
201519,8748024.21%
201419,0723832.05%
201318,689850.46%
201218,6042101.14%
201118,3941260.69%
201018,26800%
200011,5254,35360.69%
19907,172-13,234-64.85%

Mill Creek Population by Year