Multnomah County, Oregon Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 1st-largest in Oregon
The population of Multnomah County, Oregon is 803,863 as of the 2023 American Community Survey, making it the 1st-largest county in Oregon. The median household income is $86,247, the median home value is $528,000, and the median age is 38.5.
The population of Multnomah County has grown 7.9% since 2010 (737,320 → 795,897), a +0.55% annualized rate.
803,863
Population
+0.55%
Annual growth
1865
People / sq mi
$86,247
Median Income
$528,000
Median Home Value
Multnomah County covers 431 sq mi of land at 1865.0 people per square mile.
About Multnomah County, OR
What sets Multnomah County apart is where people work — remote work is unusually prominent here, at 23.1% versus 14.0% nationally. With 803,863 residents, Multnomah County is a county in Oregon. That makes it one of the ten largest counties in Oregon in the country, at #1 by population.
Median household income is $86,247, above the US median of $78,538. The poverty rate is 7.3%, below the national 12.4%. Home prices are steep, with the typical property valued at $528,000, with typical rent around $1,582.
Multnomah County is among the best-educated US counties: 48.6% of adults 25 and older hold a bachelor’s degree, above the national 35.0%. An unusually large 23.1% of workers are remote, above the national 14.0%, and the average commute runs about 25 minutes each way.
The remote-work concentration is telling in Multnomah County — it skews toward higher-income, college-educated workers and reshapes both commute patterns and housing demand.
Multnomah County Population History (2010-2024)
The county of Multnomah County had a population of 737,320 in 2010 and 795,897 in 2024, a 7.9% growth over 14 years. The peak was 816,321 in 2020. Average annual growth rate: 0.55%.
795,897
Population (2024)
737,320
Population (2010)
816,321
Peak (2020)
0.55%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 737,320 |
| 2011 | 749,926 |
| 2012 | 760,505 |
| 2013 | 766,977 |
| 2014 | 779,002 |
| 2015 | 790,723 |
| 2016 | 803,630 |
| 2017 | 808,192 |
| 2018 | 809,448 |
| 2019 | 812,439 |
| 2020 | 816,321 |
| 2021 | 804,934 |
| 2022 | 795,960 |
| 2023 | 794,271 |
| 2024 | 795,897 |
Race & Ethnicity
| White | 70.0% |
| Black or African American | 5.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 3.0% |
| Two or More Races | 0.1% |
Age & Sex
38.5
Median Age
50.2%
Female
49.8%
Male
14.4%
Age 65+
Age Distribution
Children (under 15): 14.8% · Seniors (65+): 14.4%
Income & Poverty
| Median household income | $86,247+$5,821 vs state |
| Mean household income | $119,642 |
| Per-capita income | $52,354 |
| Poverty rate | 7.3% |
| Unemployment rate | 3.8% |
| Employment-to-population | 65.8% |
Top Industries by Employment
The largest employment sector in Multnomah County is professional & business services, accounting for 24.0% of workers.
How residents commute
6.5%
Drive alone
4.4%
Carpool
53.6%
Public transit
23.1%
Work from home
25.0 min
Avg commute
Housing
$528,000+$73,800 vs state
Median home value
$1,582
Median rent
54.1%
Homeownership rate
367,704
Total housing units
94.5%
Occupied
5.5%
Vacant
45.9%
Renter-occupied
Social & access
94.1%
With health insurance
96.7%
With broadband internet
44.7%
Foreign-born
5.0%
Veterans (18+)
13.7%
With a disability
80.9%
Speak language other than English at home
Education
92.3%
High School+
48.6%
Bachelor's+
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County rankings
Common questions about Multnomah County, OR
Frequently Asked Questions
Multnomah County, Oregon has a population of 803,863 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 1st-largest county in Oregon. Population density is 1865 people per square mile.
The population of Multnomah County has grown 7.9% since 2010 (737,320 → 795,897), a +0.55% annualized rate.
The median household income in Multnomah County, Oregon is $86,247, with mean (average) household income of $119,642 and per-capita income of $52,354. 7.3% of residents live below the federal poverty level.
In Multnomah County, the largest racial and ethnic groups are White (70.0%), Black or African American (5.5%), Hispanic or Latino (3.0%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Multnomah County, Oregon is 38.5 years. Residents are 50.2% female and 49.8% male.
The median home value in Multnomah County is $528,000 and median monthly rent is $1,582. 54.1% of occupied housing units are owner-occupied. The county has 367,704 total housing units, 5.5% of which are vacant.
The largest employment sector in Multnomah County, Oregon is professional, scientific, and management services, employing 24.0% of workers. The unemployment rate is 3.8%.
Portland is among the largest cities associated with Multnomah County, Oregon, with a population of 642,715.
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Statewide data for Oregon
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.