Population
795,391
2025
−2.6% since 2020
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. Resident population, July 1 estimate.
Multnomah County had an estimated 795,391 residents in 2025, down 2.6% (20,870 fewer people) since 2020. That is slower than Oregon as a whole (+0.7%), and the 35th fastest growth of 36 counties in Oregon.
Data as of 2025 · updated
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795,391
2025
−2.6% since 2020
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. Resident population, July 1 estimate.
−1,931
2025
−2.4 per 1,000 residents
−37,128 in total, 2021–2025
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. People moving in from other U.S. counties minus people moving out.
5.1%
2025
+1.9 pts since 2019
Source: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics, 2025. Annual average unemployment rate.
1,594
2025
−55.1% since 2021
2.0 per 1,000 residents
Source: U.S. Census Bureau, Building Permits Survey, 2025. Housing units authorized by building permits in the year.
$88,766
2020–24
+24.3% since 2016–20
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–24. American Community Survey 5-year estimate.
442,844
2023
−1.2% since 2018
Source: U.S. Census Bureau, County Business Patterns, 2023. Paid employees of private employers in mid-March (County Business Patterns).
Net domestic migration was negative in 2025: 1,931 more people moved out to other U.S. counties than moved in.
Private employers had 442,844 paid employees in mid-March 2023, −1.2% since 2018 (County Business Patterns).
Unemployment averaged 5.1% in 2025, 1.9 points higher than in 2019 (before the pandemic).
Builders were authorized to start 1,594 new homes in 2025, or 2.0 per 1,000 residents.
Median household income was $88,766 in the 2020–24 American Community Survey, +24.3% since 2016–20.
Across the 3,107 U.S. counties with a comparable estimate, its population growth ranks 2,599th.
Part of the Portland-Vancouver-Hillsboro, OR-WA metro area.
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| Year | Population | Change |
|---|---|---|
| 2025 | 795,391 | +919 |
| 2024 | 794,472 | +694 |
| 2023 | 793,778 | −2,387 |
| 2022 | 796,165 | −8,965 |
| 2021 | 805,130 | −11,131 |
| 2020 | 816,261 | – |
Census Bureau population estimates, July 1 of each year.
Multnomah County lost 20,870 people since 2020; the biggest drag was domestic migration (−37,128).
| Component | 2025 | 2020–25 | Share |
|---|---|---|---|
| Natural changebirths minus deaths | +223 | +2,062 | |
| International migrationfrom and to other countries | +2,550 | +14,526 | |
| Domestic migrationfrom and to other U.S. counties | −1,931 | −37,128 | |
| Census adjustmentbalancing residual | +77 | −330 | |
| Total change | +919 | −20,870 |
Census Bureau population estimates, components of change, each year July 1 to June 30. The components add up to the change in the estimate; the Census adjustment is the small balancing figure the Bureau publishes.
| Measure | In Oregon | Among U.S. counties |
|---|---|---|
| Population growth | 35th of 36 | 2,599th of 3,107 |
| Net domestic migration per 1,000 residents | 31st of 36 | 2,280th of 3,108 |
| Private-sector job growth | 30th of 36 | 2,038th of 3,092 |
| Median household income | 6th of 36 | 333rd of 3,107 |
| Lowest unemployment rate | 15th of 36 | 2,589th of 3,108 |
| New homes permitted per 1,000 residents | 21st of 34 | 1,534th of 3,005 |
1st = highest (lowest for unemployment). Counties are ranked only against others with a figure for the same period.
The County Growth and Demographics Report for Multnomah County, OR as a PDF, from federal data: population and migration, housing and rents, permits, private employers and jobs, unemployment, ranks in the state and the country, and neighbouring counties, with a source next to every number. Pay once, no subscription.
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Multnomah County lost population faster than all 6 of its neighbouring counties (−2.6%, 2020–25).
5 of its 6 neighbouring counties had a higher median household income than Multnomah County's $88,766 (2020–24).
| County | Population2025 | Population change2020–25 | Net domestic migration per 1,000 residents2025 | Homes permitted per 1,000 residents2025 | Median household income2020–24 |
|---|---|---|---|---|---|
| Multnomah County, OR This county | 795,391 | −2.6% | −2.4 | 2.0 | $88,766 |
| Clark County, WA | 532,119 | +5.3% | 6.4 | 6.1 | $97,536 |
| Washington County, OR | 611,708 | +1.8% | −3.4 | 3.1 | $107,772 |
| Columbia County, OR | 54,091 | +2.6% | 4.9 | 1.6 | $87,458 |
| Clackamas County, OR | 426,280 | +0.9% | 1.5 | 2.9 | $103,517 |
| Skamania County, WA | 12,669 | +5.2% | 2.3 | 4.3 | $93,265 |
| Hood River County, OR | 23,720 | −0.7% | −0.5 | 7.6 | $88,947 |
Census Bureau population estimates and building permits, American Community Survey 5-year income. Rates per 1,000 residents. – means no figure, or a base too small for a change or rate (it would swing on a few people). A figure from another period shows its year and is left out of the comparison.
No. Its population fell 2.6% between 2020 and 2025, about 20,870 fewer people (Census Bureau population estimates). Oregon as a whole changed +0.7% over the same years. That ranks 35th of 36 counties in Oregon for population growth.
On net, none in 2025: about 1,931 more people moved out to other U.S. counties than moved in (Census Bureau net domestic migration estimate).
It averaged 5.1% in 2025 (BLS Local Area Unemployment Statistics, annual average).
About 795,391 people, according to the U.S. Census Bureau's population estimate for July 1, 2025.
Private employers there had 442,844 paid employees in mid-March 2023, −1.2% since 2018 (Census Bureau County Business Patterns; government jobs and the self-employed are not counted).
Map, parcel and listing layers cover North and South Carolina only for now. This page and the other Oregon county pages carry the public federal growth figures.
Email me when Multnomah County gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.
Each number shows its own period. Changes compare the latest period with five years earlier (or the earliest period available). Beacon CRE last refreshed these figures on 2026-11-05. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how we compute every number. More on every layer: data sources and licences.
Jobs outside North and South Carolina use County Business Patterns (paid private-sector employees in mid-March); wages and government jobs are not included.