Census-designated place · Washington

Mill Creek East, Washington

Mill Creek East, census-designated place, in Snohomish County, Washington. Mill Creek East had 25,453 people in the ACS 2020-2024 5-year estimates (±1,402). GEOID 5345870.

Residents, 2020-2024

25,453

±1,402 (90% margin)
2020 Census count: 24,912

Median household income

$192,937

±$15,438 (90% margin)
Washington: $98,141

Median home value

$905,400

±$16,705 (90% margin)
Washington: $564,600

Median gross rent

$3,152

±$162 (90% margin)
Washington: $1,760

Where is Mill Creek East and what county is it in?

Mill Creek East is a census-designated place: an unincorporated community the Census Bureau draws for counting, with no city government of its own, in Snohomish County, Washington. It covers 4.4 square miles of land, 5,599 residents per square mile in 2020.

Mill Creek East is in the Seattle-Tacoma-Bellevue, WA metropolitan statistical area, which takes in 3 counties (Census Bureau delineation, July 2023).

Mill Creek East (marked with a dot) in Snohomish County, Washington. Boundaries: Census Bureau 2024.

Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files

How many people live in Mill Creek East, and is it growing?

The 2020-2024 American Community Survey puts Mill Creek East's population at 25,453 (±1,402). The 2020 Census counted 24,912 residents.

The Census Bureau publishes yearly population estimates for incorporated places only; Mill Creek East is a census-designated place, so its figures come from the ACS and the 2020 Census.

ACS 2020-2024 5-year estimates (counts) with the change from 2015-2019
Measure Mill Creek EastSnohomish CountyWashington Change since 2015-2019
Total population 25,453 ±1,402 844,430 7,816,116 no clear change
Households 8,108 ±419 316,212 3,064,820 no clear change
Average household size 3.13 ±0.08 2.64 2.50 no clear change
Housing units 8,147 ±412 331,530 3,306,620 no clear change

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov

Who lives in Mill Creek East?

The median resident of Mill Creek East is 35.2 years old; 30.6% are under 18 and 7.3% are 65 or older. The largest group is non-Hispanic Asian residents at 41.1%, then non-Hispanic white residents at 40.1%. 34.1% of residents were born outside the United States.

Age, origin, education and moves, ACS 2020-2024 5-year estimates. Race groups are non-Hispanic; Hispanic includes any race.
Measure Mill Creek EastSnohomish CountyWashington Change since 2015-2019
Median age 35.2 ±1.2 38.6 38.3 no clear change
Under 18 years 30.6% ±1.5 pts 22.1% 21.4% –
65 years and over 7.3% ±1.5 pts 14.8% 16.6% –
Male 49.6% ±1.7 pts 50.4% 50.4% –
Hispanic or Latino (any race) 7.0% ±2.0 pts 12.1% 14.4% no clear change
White alone, not Hispanic 40.1% ±3.9 pts 62.0% 63.1% −19.7 pts
Black or African American alone, not Hispanic 3.2% ±1.1 pts 3.6% 3.8% +1.9 pts
Asian alone, not Hispanic 41.1% ±3.5 pts 13.6% 9.7% +16.4 pts
American Indian and Alaska Native alone, not Hispanic 0.3% ±0.2 pts 0.6% 0.8% –
Native Hawaiian and Other Pacific Islander alone, not Hispanic 0.0% ±0.1 pts 0.5% 0.7% –
Two or more races, not Hispanic 6.7% ±1.4 pts 6.9% 6.8% –
Some other race alone, not Hispanic 1.5% ±1.0 pts 0.7% 0.6% –
Born outside the United States 34.1% ±2.9 pts 19.3% 15.4% +8.9 pts
Speak a language other than English at home (age 5+) 41.6% ±3.6 pts 24.4% 21.4% –
Civilian veterans (age 18+) 3.6% ±0.8 pts 6.9% 7.8% –
With a disability 6.5% ±1.4 pts 12.4% 13.6% –
No health insurance coverage 4.3% ±1.6 pts 6.2% 6.3% no clear change
High school graduate or higher (age 25+) 96.9% ±1.6 pts 93.1% 92.3% –
Bachelor's degree or higher (age 25+) 67.6% ±3.1 pts 38.2% 39.6% +15.5 pts
Graduate or professional degree (age 25+) 31.9% ±2.6 pts 13.4% 15.6% –
Lived in the same house a year earlier 90.3% ±2.3 pts 87.3% 85.5% –
Moved from another state in the past year 2.7% ±1.6 pts 1.8% 2.9% –

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov

What do households in Mill Creek East earn?

Half of Mill Creek East's 8,108 households earn less than $192,937 a year (±$15,438), against $111,246 in Snohomish County and $98,141 in Washington. In 2015-2019 the median was $164,659 in 2024 dollars, so it rose by $28,278 after inflation. 4.1% of residents live below the poverty line.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates; 2015-2019 dollars adjusted with the R-CPI-U-RS
Measure Mill Creek EastSnohomish CountyWashington Change since 2015-2019
Median household income $192,937 ±$15,438 $111,246 $98,141 +$28,278
Mean household income $210,965 ±$10,112 $142,821 $134,588 –
Per capita income $67,712 ±$3,289 $54,628 $53,744 +$11,199
People below the poverty line 4.1% ±1.7 pts 8.0% 9.9% no clear change
Children under 18 below the poverty line 3.2% ±2.3 pts 9.2% 11.6% –
Households receiving SNAP 3.9% ±1.9 pts 8.8% 11.5% –
Households with a computer 99.7% ±0.4 pts 97.7% 97.1% –
Households with a broadband subscription 98.0% ±0.8 pts 94.4% 93.6% –

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov

What does housing cost in Mill Creek East?

Owners occupy 82.6% of Mill Creek East's occupied homes and renters 17.4%. The median owner-occupied home is valued at $905,400 by its owner (±$16,705). The median renter pays $3,152 a month including utilities, and 26.8% of renters pay 35% or more of their income on rent.

Housing, ACS 2020-2024 5-year estimates. Home values are owners' own estimates.
Measure Mill Creek EastSnohomish CountyWashington Change since 2015-2019
Median home value (owner-occupied) $905,400 ±$16,705 $696,000 $564,600 +$261,378
Median gross rent $3,152 ±$162 $1,949 $1,760 +$453
Renters paying 35% or more of income on rent 26.8% ±9.2 pts 41.9% 40.1% no clear change
Median monthly owner costs, with a mortgage $3,401 ±$123 $2,748 $2,445 –
Owner-occupied homes 82.6% ±3.5 pts 68.2% 63.8% no clear change
Renter-occupied homes 17.4% ±3.5 pts 31.8% 36.2% –
Housing units 8,147 ±412 331,530 3,306,620 no clear change
Homeowner vacancy rate 0.5% ±0.8 pts 0.5% 0.7% –
Rental vacancy rate 0.5% ±0.8 pts 4.0% 4.5% –
Single-family detached homes 84.9% ±2.4 pts 63.9% 61.9% –
Mobile homes 0.3% ±0.4 pts 4.6% 5.5% –
Built 2020 or later 2.9% ±1.6 pts 2.6% 2.3% –
Built 2010 to 2019 31.2% ±2.7 pts 12.2% 12.1% –
Built 1939 or earlier 0.5% ±0.9 pts 4.9% 9.6% –
Households with no vehicle 2.7% ±1.6 pts 4.7% 7.1% –

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov

How do people in Mill Creek East work and get to work?

52.7% of Mill Creek East's workers drive alone and 33.1% work from home. The average trip to work takes 33.0 minutes. The unemployment rate in 2020-2024 averaged 4.4%.

Work and commuting, ACS 2020-2024 5-year estimates (workers 16 and over)
Measure Mill Creek EastSnohomish CountyWashington Change since 2015-2019
In the labor force (age 16+) 73.7% ±3.0 pts 67.3% 64.5% –
Unemployment rate 4.4% ±1.2 pts 4.5% 5.1% no clear change
Drove alone to work 52.7% ±3.4 pts 65.0% 63.4% –
Carpooled 9.3% ±2.3 pts 9.1% 8.5% –
Public transportation 3.1% ±1.0 pts 2.8% 3.4% –
Walked 0.5% ±0.4 pts 1.6% 3.0% –
Worked from home 33.1% ±3.3 pts 20.0% 19.8% +27.1 pts
Mean travel time to work 33.0 min ±1.9 30.8 min 26.6 min −4.9 min

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov

What census tracts are in Mill Creek East?

5 census tracts lie mostly in Mill Creek East, and 3 more reach into it (2020 census blocks). Their median household incomes run from $136,890 (Tract 519.34) to $250,000 or more (Tract 520.09).

Census tracts in Mill Creek East, ACS 2020-2024 5-year estimates
TractResidents, 2020-2024Median household incomeMedian home valueShare of tract in Mill Creek East
Tract 521.07Snohomish County9,364 $213,012 $1,037,90068%
Tract 520.07Snohomish County5,218 $162,566 $796,700100%
Tract 520.09Snohomish County4,086 $250,000 or more $1,053,200100%
Tract 519.34Snohomish County3,646 $136,890 $824,200100%
Tract 519.35Snohomish County3,224 $169,853 $831,80055%
Tract 520.06Snohomish County4,125 $163,886 $876,50041%
Tract 520.10Snohomish County3,928 $132,466 $815,80023%
Tract 520.05Snohomish County5,849 $128,623 $881,1003%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Mill Creek East) · Census block assignment files

How does Mill Creek East compare with other places in Washington?

Mill Creek East ranks 13th of 387 places in Washington with 1,000 or more residents and a reliable estimate, by median household income.

Mill Creek East's rank in Washington (1 = highest): by population among the state's incorporated places with a 2025 estimate; by the other measures among places of 1,000+ residents with a reliable estimate
MeasureRankOf
Population (ACS 2020-2024)50th393
Residents per square mile8th394
Median household income13th387
Per capita income58th393
Median home value33rd384
Median gross rent5th351
Poverty rate256th281
Bachelor's degree or higher17th382
Median age311th394
Owner-occupied share126th388
Work from home29th307
Travel time to work74th394

Mill Creek East's figures with every place in Washington (CSV)

Every place in Washington, sortable · Compare Mill Creek East with other places

Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed

How reliable are the figures for Mill Creek East?

9 of the 57 figures for Mill Creek East on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.

The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation

How these figures are made: methodology and release checks · reading a margin of error · every state · corrections

Not on this page: crime, weather and schools for Mill Creek East are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.