County Maps US

Clackamas County, Oregon

A county in Oregon, ranked 3 of 36 by population.

CountyFIPS 41005

Within Oregon
Clackamas County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data.

Download SVGFull Oregon map downloads

Population
426,280
+3,797 (+0.9%) since 2020
Land area
1,871
square miles. A further 0.7% of the total area is water
Population density
228
people per square mile, computed rather than published
County seat
Oregon City
Seat of county government.
Established
1843
182 years ago
Largest city
Oregon City city
Population 38,175.

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

Satellite view

Aerial imagery of Clackamas County with its boundary drawn on top. A map shows you the shape; this shows you what is inside it, and which side of the line a place falls on.

Aerial view of Clackamas County, Oregon from the USGS National Map, with its boundary outlined
Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 800 by 565 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

Where Clackamas County ranks

Position among the 36 counties of Oregon, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn OregonNationally
Population426,2803rd of 36181st of 3,144
Land area1,871 sq mi18th of 36306th of 3,144
Population density228 per sq mi4th of 36526th of 3,144
Median household income$103,5172nd of 36136th of 3,143

Full data for Clackamas County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population426,280Vintage 2025 Population Estimates
Population in 2020422,483Vintage 2025 Population Estimates
2020 estimates base?421,429Vintage 2025 Population Estimates
Land area1,871 sq mi2025 Gazetteer Files
Water area12.3 sq mi2025 Gazetteer Files
Total area1,883 sq mi2025 Gazetteer Files
Population density?228 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$103,517American Community Survey 2020-2024 5-Year Estimates
Median home value$611,000American Community Survey 2020-2024 5-Year Estimates
Median age42.3American Community Survey 2020-2024 5-Year Estimates
Households163,845American Community Survey 2020-2024 5-Year Estimates
Housing units174,323American Community Survey 2020-2024 5-Year Estimates

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026. Population density is computed here, not published: it divides the Vintage 2025 population estimate by the 2025 Gazetteer land area, which are two different Census products. Retrieved 30 August 2026.

How the population changed

The Census Bureau publishes the components behind an estimate, not just the total. For the year to July 2025:

Births minus deaths
-180
3,732 births, 3,912 deaths
Net migration
+1,207
More people moved in than moved out.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 6 areas bordering Clackamas County

Ordered by the length of the border actually shared, which the Census Bureau publishes in its county adjacency file and which no other county reference presents.

Bordering areaStateShared borderPopulation
Marion CountyOregon95 mi355,777
Multnomah CountyOregon48 mi795,391
Wasco CountyOregon44 mi26,310
Hood River CountyOregon20 mi23,720
Washington CountyOregon16 mi611,708
Yamhill CountyOregon4.9 mi110,024

Source: US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. Retrieved 30 August 2026.

Side by side

All 36 counties of Oregon

Open the interactive Oregon county map, or jump straight to any of them.

Data on this page last rebuilt 30 August 2026. How these figures are produced.