City · Oregon
Cornelius, Oregon
Cornelius, city, in Washington County, Oregon. Cornelius had 15,520 residents on July 1, 2025 by the Census Bureau's estimate, up 21.8% since 2020; the 2020 Census counted 12,694 and the ACS 2020-2024 5-year estimates put it at 14,255 (±39). GEOID 4115550.
Residents, July 2025 estimate
15,520
Census Bureau estimate (no margin published)
2020 Census count: 12,694 · ACS 2020-2024: 14,255 ±39
Median household income
$96,273
±$11,088 (90% margin)
Oregon: $83,011
Median home value
$452,900
±$20,630 (90% margin)
Oregon: $477,600
Median gross rent
$1,573
±$146 (90% margin)
Oregon: $1,525
Where is Cornelius and what county is it in?
Cornelius is a city in Washington County, Oregon. It covers 2.3 square miles of land, 5,425 residents per square mile in 2020.
Cornelius is in the Portland-Vancouver-Hillsboro, OR-WA metropolitan statistical area, which takes in 7 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Cornelius, and is it growing?
The Census Bureau estimates that 15,520 people lived in Cornelius on July 1, 2025, up 21.8% since 2020, faster than Oregon (+0.9%). The 2020 Census counted 12,694 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 14,255 (±39).
| Measure | Cornelius | Washington County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 14,255 ±39 | 603,947 | +1,617 |
| Households | 4,843 ±342 | 235,406 | +1,233 |
| Average household size | 2.91 ±0.20 | 2.53 | −0.55 |
| Housing units | 4,949 ±349 | 243,278 | +1,221 |
Cornelius's population since 2000
From 9,652 in 2000 to 15,520 in 2025: up 60.8%. The 2000, 2010 and 2020 figures are census counts, each for Cornelius 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 Cornelius?
The median resident of Cornelius is 35.1 years old; 23.1% are under 18 and 12.5% are 65 or older. The largest group is Hispanic or Latino residents (of any race) at 51.3%, then non-Hispanic white residents at 42.3%. 23.3% of residents were born outside the United States.
| Measure | Cornelius | Washington County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 35.1 ±2.1 | 38.1 | +3.1 |
| Under 18 years | 23.1% ±3.1 pts | 21.6% | – |
| 65 years and over | 12.5% ±2.8 pts | 14.8% | – |
| Male | 48.0% ±3.0 pts | 49.9% | – |
| Hispanic or Latino (any race) | 51.3% ±5.3 pts | 18.6% | no clear change |
| White alone, not Hispanic | 42.3% ±5.2 pts | 60.0% | no clear change |
| Black or African American alone, not Hispanic | 1.3% ±1.4 pts | 2.2% | – |
| Asian alone, not Hispanic | 1.2% ±0.9 pts | 11.4% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.2% ±0.2 pts | 0.3% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.3 pts | 0.5% | – |
| Two or more races, not Hispanic | 3.5% ±1.7 pts | 6.5% | – |
| Some other race alone, not Hispanic | 0.1% ±0.2 pts | 0.6% | – |
| Born outside the United States | 23.3% ±4.7 pts | 18.3% | no clear change |
| Speak a language other than English at home (age 5+) | 47.7% ±5.9 pts | 25.8% | – |
| Civilian veterans (age 18+) | 6.8% ±1.9 pts | 5.6% | – |
| With a disability | 15.0% ±3.0 pts | 11.6% | – |
| No health insurance coverage | 9.9% ±3.3 pts | 5.2% | no clear change |
| High school graduate or higher (age 25+) | 77.1% ±4.3 pts | 92.7% | – |
| Bachelor's degree or higher (age 25+) | 18.9% ±5.3 pts | 47.5% | no clear change |
| Graduate or professional degree (age 25+) | 5.7% ±1.7 pts | 18.5% | – |
| Lived in the same house a year earlier | 90.5% ±2.8 pts | 86.9% | – |
| Moved from another state in the past year | 0.4% ±0.5 pts | 2.8% | – |
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 Cornelius earn?
Half of Cornelius's 4,843 households earn less than $96,273 a year (±$11,088), against $107,772 in Washington County and $83,011 in Oregon. In 2015-2019 it was $82,711 in 2024 dollars; the margins of error cannot tell the two periods apart. 9.1% of residents live below the poverty line.
| Measure | Cornelius | Washington County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $96,273 ±$11,088 | $107,772 | no clear change |
| Mean household income | $115,371 ±$11,910 | $137,880 | – |
| Per capita income | $38,610 ±$4,971 | $53,929 | +$9,804 |
| People below the poverty line | 9.1% ±4.4 pts | 8.1% | no clear change |
| Children under 18 below the poverty line | 2.5% ±2.2 pts | 8.6% | – |
| Households receiving SNAP | 12.6% ±3.9 pts | 10.5% | – |
| Households with a computer | 98.6% ±1.4 pts | 98.0% | – |
| Households with a broadband subscription | 98.3% ±1.4 pts | 95.4% | – |
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 Cornelius?
Owners occupy 74.3% of Cornelius's occupied homes and renters 25.7%. The median owner-occupied home is valued at $452,900 by its owner (±$20,630). The median renter pays $1,573 a month including utilities, and 33.1% of renters pay 35% or more of their income on rent.
| Measure | Cornelius | Washington County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $452,900 ±$20,630 | $588,000 | +$129,228 |
| Median gross rent | $1,573 ±$146 | $1,849 | +$217 |
| Renters paying 35% or more of income on rent | 33.1% ±14.1 pts | 39.1% | no clear change |
| Median monthly owner costs, with a mortgage | $2,038 ±$191 | $2,475 | – |
| Owner-occupied homes | 74.3% ±6.0 pts | 60.8% | no clear change |
| Renter-occupied homes | 25.7% ±6.0 pts | 39.2% | – |
| Housing units | 4,949 ±349 | 243,278 | +1,221 |
| Homeowner vacancy rate | 1.4% ±1.3 pts | 0.5% | – |
| Rental vacancy rate | 0.0% ±3.1 pts | 4.1% | – |
| Single-family detached homes | 67.0% ±6.3 pts | 57.3% | – |
| Mobile homes | 10.7% ±3.2 pts | 1.9% | – |
| Built 2020 or later | 10.6% ±3.2 pts | 2.4% | – |
| Built 2010 to 2019 | 7.9% ±3.2 pts | 12.0% | – |
| Built 1939 or earlier | 2.1% ±1.7 pts | 2.8% | – |
| Households with no vehicle | 2.1% ±1.5 pts | 5.6% | – |
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 Cornelius building?
Builders took permits for 88 new housing units in Cornelius in 2025 (86 in single-family houses), 5.7 per 1,000 residents against 3.5 across Oregon.
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 Cornelius work and get to work?
67.4% of Cornelius's workers drive alone and 9.0% work from home. The average trip to work takes 28.7 minutes. The unemployment rate in 2020-2024 averaged 5.0%.
| Measure | Cornelius | Washington County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 70.8% ±3.5 pts | 68.6% | – |
| Unemployment rate | 5.0% ±2.3 pts | 4.5% | no clear change |
| Drove alone to work | 67.4% ±5.3 pts | 61.2% | – |
| Carpooled | 12.5% ±3.7 pts | 7.4% | – |
| Public transportation | 6.8% ±3.9 pts | 3.1% | – |
| Walked | 2.3% ±1.5 pts | 2.3% | – |
| Worked from home | 9.0% ±3.0 pts | 24.4% | +5.5 pts |
| Mean travel time to work | 28.7 min ±3.4 | 24.0 min | no clear change |
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 Cornelius?
3 census tracts lie mostly in Cornelius, and 1 more reaches into it (2020 census blocks). Their median household incomes run from $76,481 (Tract 329.03) to $102,500 (Tract 329.01).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 329.01Washington County | 6,920 | $102,500 |
| Tract 329.04Washington County | 5,469 | $100,391 |
| Tract 329.03Washington County | 3,358 | $76,481 |
| Tract 332.01Washington County | 4,320 | $42,642 |
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 Cornelius) · Census block assignment files
How does Cornelius compare with other places in Oregon?
By the Census Bureau's July 2025 estimates, Cornelius is the 2,359th-most populous of the 19,476 U.S. incorporated places that have one and the 40th-most populous of 240 in Oregon.
Cornelius ranks 52nd of 223 places in Oregon with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 40th | 240 |
| Growth 2020-2025 (PEP) | 4th | 162 |
| Residents per square mile | 11th | 224 |
| Median household income | 52nd | 223 |
| Per capita income | 106th | 224 |
| Median home value | 81st | 224 |
| Median gross rent | 65th | 207 |
| Poverty rate | 125th | 175 |
| Bachelor's degree or higher | 155th | 219 |
| Median age | 193rd | 224 |
| Owner-occupied share | 85th | 224 |
| Work from home | 140th | 169 |
| Travel time to work | 39th | 221 |
Cornelius's figures with every place in Oregon (CSV)
Every place in Oregon, sortable · Compare Cornelius 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 Cornelius?
11 of the 57 figures for Cornelius 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 Cornelius 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 Cornelius.