County Maps US

Tillamook County, Oregon

A county in Oregon, ranked 22 of 36 by population.

CountyFIPS 41057

Within Oregon
Tillamook County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data. The dot marks Tillamook, the county seat, located via the 2025 Census Gazetteer.

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Population
27,384
-72 (-0.3%) since 2020
Land area
1,103
square miles. A further 17.2% of the total area is water
Population density
24.8
people per square mile, computed rather than published
County seat
Tillamook
Seat of county government.
Established
1853
172 years ago
Largest city
Tillamook city
Population 5,162.

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 Tillamook 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 Tillamook 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 573 by 800 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 Tillamook 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
Population27,38422nd of 361,534th of 3,144
Land area1,103 sq mi26th of 36575th of 3,144
Population density24.8 per sq mi19th of 362,070th of 3,144
Median household income$69,10518th of 361,264th of 3,143

Full data for Tillamook County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population27,384Vintage 2025 Population Estimates
Population in 202027,456Vintage 2025 Population Estimates
2020 estimates base?27,385Vintage 2025 Population Estimates
Land area1,103 sq mi2025 Gazetteer Files
Water area229.2 sq mi2025 Gazetteer Files
Total area1,332 sq mi2025 Gazetteer Files
Population density?24.8 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$69,105American Community Survey 2020-2024 5-Year Estimates
Median home value$430,200American Community Survey 2020-2024 5-Year Estimates
Median age49.0American Community Survey 2020-2024 5-Year Estimates
Households11,936American Community Survey 2020-2024 5-Year Estimates
Housing units19,213American 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
-152
207 births, 359 deaths
Net migration
+115
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 Tillamook 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
Washington CountyOregon49 mi611,708
Yamhill CountyOregon43 mi110,024
Clatsop CountyOregon35 mi40,926
Lincoln CountyOregon18 mi50,636
Polk CountyOregon2.2 mi90,037
Columbia CountyOregona single point54,091

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

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.