Mill Creek Beacon - Your Hometown News Source

By Christopher Kim
Mill Creek Beacon Editor 

2020 census: Mill Creek has grown over the past decade


Last updated 8/27/2021 at 10:39am

Image courtesy of U.S. Census Bureau

Recently released U.S. Census data shows that Mill Creek gained 2,682 residents in the last decade. According to the data, the City's total population had an increase of 14.6%.

The city's population in 2020 was 20,926, compared to 18,244 in 2010.

Data on housing and income numbers are from 2015 to 2019, so those statistics are likely to be higher now with housing costs continuing to spike.

Data also suggests that the county is becoming more diverse over the past decade, with the percentage of White residents dropping 10.5 percentage points to 64% of the total population. Statewide, more than 36% of residents are now nonwhite, up from 27%.

Snohomish County gained 114,000 residents from 2010 to 2020, a 16.1% increase. The city with the largest increase? Marysville, with more than 10,000. Meanwhile, Granite Falls saw the largest percentage increase, 32%.

Everett, the largest city in the county, was reported to have a population of 110,629 in 2020.

The changing numbers will help decide how Snohomish County Council districts are drawn, according to the Washington State Redistricting Commission.

The independent County Districting Committee has until Dec. 1 to approve a plan for new council districts. You can view the current district map on the Snohomish County website:

The Districting Committee will be working with census data, experts and community feedback to assess the county's population and communities of related interests and develop preliminary options for council districts by October. A final plan will be approved and submitted to the Snohomish County Council by Dec. 1, according to County Auditor Garth Fell.

The census statistics, which come from the 2020 Census Redistricting Data Summary File, provide the first look at populations for small areas and include information on Hispanic origin, race, age 18 and over, housing occupancy, and group quarters.

They represent where people were living as of April 1, 2020, and are available for the nation, states and communities down to the block level.

Data from the census will also be used in the distribution of federal funds. In 2010, when nearly a quarter of Washington State residents did not respond to the decennial census, more than $34 billion in federal funds went unused, according to statistics from the United States Census Bureau.

County and metro area highlights:

• The largest county in the United States in 2020 remains Los Angeles County, with over 10 million people.

• The largest city (incorporated place) in the United States in 2020 remains New York, with 8.8 million people.

• 312 of the 384 U.S. metro areas gained population between 2010 and 2020.

• The fastest-growing U.S. metro area between the 2010 Census and 2020 Census was The Villages in Florida, which grew 39% from about 93,000 people to about 130,000 people.

• 72 U.S. metro areas lost population from the 2010 Census to the 2020 Census. The U.S. metro areas with the largest percentage declines were Pine Bluff, Ark., and Danville, Ill., at minus 12.5% and minus 9.1%, respectively.

Here are selected Mill Creek numbers from the census:

Age and sex

Females: 52.9%

Persons 65 and older: 15.8%

Person under 18: 21.8%

Persons under 5: 5.7%

Race and Hispanic origin

White alone: 67%

White alone, not Hispanic or Latino: 64.5%

Asian alone: 19%

Hispanic or Latino: 5.8%

Two or more races: 6.6%

Black or African American: 3.4%

Native Hawaiian and other Pacific Islander: 0.3%

American Indian or Alaska Native: 0.3%

Income and poverty

Median household income (in 2019 dollars): $103,750

Per capita income in past 12 months (in 2019 dollars): $52,848

Persons in poverty: 4.3%


Owner-occupied housing rate, 2015-19: 60.2%

Median value of owner-occupied housing units, 2015-19: $536,800

Median selected monthly owner costs with mortgage, 2015-19: $2,516

Median selected monthly owner costs without mortgage, 2015-19: $818

Median gross rent, 2015-19: $1,812


High school grad or higher, persons over 25, 2015-19: 97.6%

Bachelor's or higher, persons over 25: 51.5%

For more census data on Mill Creek, where you compare the numbers to the county and country:


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