City · Washington
Auburn, Washington
Auburn, city, mostly in King County (88.5% of its 2020 residents), with a part in Pierce County, Washington. Auburn had 86,301 residents on July 1, 2025 by the Census Bureau's estimate, down 2.4% since 2020; the 2020 Census counted 87,256 and the ACS 2020-2024 5-year estimates put it at 85,676 (±65). GEOID 5303180.
Residents, July 2025 estimate
86,301
Census Bureau estimate (no margin published)
2020 Census count: 87,256 · ACS 2020-2024: 85,676 ±65
Median household income
$97,884
±$3,074 (90% margin)
Washington: $98,141
Median home value
$547,900
±$14,932 (90% margin)
Washington: $564,600
Median gross rent
$1,786
±$47 (90% margin)
Washington: $1,760
Where is Auburn and what county is it in?
Auburn is a city mostly in King County (88.5% of its 2020 residents), with a part in Pierce County, Washington. It covers 29.6 square miles of land, 2,950 residents per square mile in 2020.
Auburn is in the Seattle-Tacoma-Bellevue, WA metropolitan statistical area, which takes in 3 counties (Census Bureau delineation, July 2023).
| County | 2020 residents | Share |
|---|---|---|
| King County | 77,243 | 88.5% |
| Pierce County | 10,013 | 11.5% |
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Auburn, and is it growing?
The Census Bureau estimates that 86,301 people lived in Auburn on July 1, 2025, down 2.4% since 2020, while Washington grew 3.8%. The 2020 Census counted 87,256 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 85,676 (±65).
| Measure | Auburn | King County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 85,676 ±65 | 2,287,171 | +5,542 |
| Households | 30,393 ±659 | 941,054 | +1,147 |
| Average household size | 2.79 ±0.06 | 2.39 | no clear change |
| Housing units | 31,800 ±765 | 1,003,284 | no clear change |
Auburn's population since 2000
From 40,314 in 2000 to 86,301 in 2025: up 114.1%. The 2000, 2010 and 2020 figures are census counts, each for Auburn as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
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 Auburn?
The median resident of Auburn is 36.0 years old; 24.9% are under 18 and 12.5% are 65 or older. The largest group is non-Hispanic white residents at 48.2%, then Hispanic or Latino residents (of any race) at 20.8%. 25.1% of residents were born outside the United States.
| Measure | Auburn | King County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 36.0 ±0.7 | 37.4 | no clear change |
| Under 18 years | 24.9% ±1.1 pts | 19.5% | – |
| 65 years and over | 12.5% ±1.0 pts | 14.0% | – |
| Male | 50.8% ±1.2 pts | 50.7% | – |
| Hispanic or Latino (any race) | 20.8% ±2.1 pts | 11.0% | +4.0 pts |
| White alone, not Hispanic | 48.2% ±2.5 pts | 52.9% | −6.5 pts |
| Black or African American alone, not Hispanic | 6.6% ±1.3 pts | 6.4% | no clear change |
| Asian alone, not Hispanic | 12.1% ±1.5 pts | 20.5% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 1.6% ±0.5 pts | 0.4% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 3.3% ±0.9 pts | 0.7% | – |
| Two or more races, not Hispanic | 7.1% ±1.1 pts | 7.3% | – |
| Some other race alone, not Hispanic | 0.5% ±0.2 pts | 0.6% | – |
| Born outside the United States | 25.1% ±1.6 pts | 25.8% | +4.0 pts |
| Speak a language other than English at home (age 5+) | 35.5% ±2.1 pts | 31.1% | – |
| Civilian veterans (age 18+) | 7.7% ±1.0 pts | 4.5% | – |
| With a disability | 13.2% ±1.1 pts | 10.3% | – |
| No health insurance coverage | 8.4% ±0.9 pts | 5.2% | no clear change |
| High school graduate or higher (age 25+) | 88.4% ±1.3 pts | 93.8% | – |
| Bachelor's degree or higher (age 25+) | 25.6% ±1.7 pts | 56.7% | no clear change |
| Graduate or professional degree (age 25+) | 8.1% ±1.0 pts | 24.2% | – |
| Lived in the same house a year earlier | 88.6% ±1.7 pts | 83.3% | – |
| Moved from another state in the past year | 1.0% ±0.4 pts | 3.5% | – |
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 Auburn earn?
Half of Auburn's 30,393 households earn less than $97,884 a year (±$3,074), against $124,746 in King County and $98,141 in Washington. In 2015-2019 the median was $89,622 in 2024 dollars, so it rose by $8,262 after inflation. 8.9% of residents live below the poverty line.
| Measure | Auburn | King County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $97,884 ±$3,074 | $124,746 | +$8,262 |
| Mean household income | $116,385 ±$4,006 | $176,799 | – |
| Per capita income | $42,587 ±$1,462 | $74,100 | no clear change |
| People below the poverty line | 8.9% ±1.6 pts | 8.6% | no clear change |
| Children under 18 below the poverty line | 13.1% ±3.5 pts | 9.7% | no clear change |
| Households receiving SNAP | 14.9% ±1.6 pts | 8.2% | – |
| Households with a computer | 98.0% ±0.6 pts | 98.1% | – |
| Households with a broadband subscription | 94.5% ±1.0 pts | 95.1% | – |
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 Auburn?
Owners occupy 60.6% of Auburn's occupied homes and renters 39.4%. The median owner-occupied home is valued at $547,900 by its owner (±$14,932). The median renter pays $1,786 a month including utilities, and 44.1% of renters pay 35% or more of their income on rent.
| Measure | Auburn | King County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $547,900 ±$14,932 | $859,900 | +$145,217 |
| Median gross rent | $1,786 ±$47 | $2,092 | +$254 |
| Renters paying 35% or more of income on rent | 44.1% ±4.2 pts | 37.5% | +6.2 pts |
| Median monthly owner costs, with a mortgage | $2,541 ±$79 | $3,273 | – |
| Owner-occupied homes | 60.6% ±2.1 pts | 55.4% | no clear change |
| Renter-occupied homes | 39.4% ±2.1 pts | 44.6% | – |
| Housing units | 31,800 ±765 | 1,003,284 | no clear change |
| Homeowner vacancy rate | 1.1% ±0.9 pts | 0.7% | – |
| Rental vacancy rate | 4.0% ±1.9 pts | 5.3% | – |
| Single-family detached homes | 51.1% ±1.9 pts | 50.0% | – |
| Mobile homes | 6.6% ±1.1 pts | 1.4% | – |
| Built 2020 or later | 1.7% ±0.7 pts | 2.1% | – |
| Built 2010 to 2019 | 13.6% ±1.3 pts | 14.2% | – |
| Built 1939 or earlier | 2.8% ±0.7 pts | 10.9% | – |
| Households with no vehicle | 6.9% ±1.1 pts | 11.2% | – |
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 many new homes is Auburn building?
Builders took permits for 26 new housing units in Auburn in 2025 (26 in single-family houses), 0.3 per 1,000 residents against 4.4 across Washington.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Auburn work and get to work?
70.9% of Auburn's workers drive alone and 14.4% work from home. The average trip to work takes 30.5 minutes. The unemployment rate in 2020-2024 averaged 6.0%.
| Measure | Auburn | King County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 69.4% ±1.6 pts | 69.9% | – |
| Unemployment rate | 6.0% ±0.7 pts | 4.8% | +1.1 pts |
| Drove alone to work | 70.9% ±2.0 pts | 50.4% | – |
| Carpooled | 9.1% ±1.2 pts | 7.0% | – |
| Public transportation | 2.6% ±0.6 pts | 6.8% | – |
| Walked | 1.8% ±0.7 pts | 4.3% | – |
| Worked from home | 14.4% ±1.5 pts | 29.2% | +10.2 pts |
| Mean travel time to work | 30.5 min ±1.0 | 27.6 min | −2.5 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 Auburn?
17 census tracts lie mostly in Auburn, and 6 more reach into it (2020 census blocks). Their median household incomes run from $33,423 (Tract 305.01) to $153,819 (Tract 296.02).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 305.03King County | 6,776 | $95,278 |
| Tract 308.01King County | 7,310 | $72,993 |
| Tract 305.04King County | 5,636 | $82,227 |
| Tract 299.02King County | 5,469 | $143,000 |
| Tract 296.02King County | 7,603 | $153,819 |
| Tract 310King County | 4,872 | $137,157 |
| Tract 312.06King County | 5,514 | $101,555 |
| Tract 306King County | 4,900 | $90,972 |
| Tract 703.16Pierce County | 5,518 | $114,969 |
| Tract 308.02King County | 4,454 | $81,688 |
| Tract 312.08King County | 4,365 | $109,732 |
| Tract 307King County | 4,216 | $73,333 |
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 Auburn) · Census block assignment files
How does Auburn compare with other places in Washington?
By the Census Bureau's July 2025 estimates, Auburn is the 423rd-most populous of the 19,476 U.S. incorporated places that have one and the 15th-most populous of 281 in Washington.
Auburn ranks 178th of 387 places in Washington with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 15th | 281 |
| Growth 2020-2025 (PEP) | 192nd | 203 |
| Residents per square mile | 94th | 394 |
| Median household income | 178th | 387 |
| Per capita income | 222nd | 393 |
| Median home value | 167th | 384 |
| Median gross rent | 142nd | 351 |
| Poverty rate | 154th | 281 |
| Bachelor's degree or higher | 243rd | 382 |
| Median age | 286th | 394 |
| Owner-occupied share | 292nd | 388 |
| Work from home | 180th | 307 |
| Travel time to work | 120th | 394 |
Auburn's figures with every place in Washington (CSV)
Every place in Washington, sortable · Compare Auburn 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 Auburn?
1 of the 57 figures for Auburn on this page carries a coefficient of variation over 40% and is 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 Auburn 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' public schools in Auburn.