WA · GEOID 53069

Wahkiakum County area

Wahkiakum County, Washington covers 286.7 square miles: 262.9 square miles of land and 23.8 square miles of water.

Official Census measurements2026 Gazetteer · retrieved September 27, 2026
Land area262.9 mi²
Water area23.8 mi²
Total area286.7 mi²
National land rank#2880

County outline

Generalized outline of Wahkiakum County, Washington
2025 Census cartographic boundary, fitted to this frame. County maps are not at a common scale. The 2026 area measurements below come from the separate Gazetteer release. Map source and limitations.

Where Wahkiakum County is located

Wahkiakum County highlighted on a map of all U.S. county equivalents. About the maps

Area breakdown

Land accounts for 91.7% of Wahkiakum County’s measured area and water for 8.3%. Its combined area converts to 742.5 square kilometers or approximately 183,487 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land262.928680.98168,273.9
Water23.7761.56415,212.8
Total286.698742.544183,486.7

How Wahkiakum County compares

By original Census land area, Wahkiakum County ranks #37 of 39 in Washington and #2880 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 0.151 times the Washington county-equivalent median of 1,738.8 square miles. It accounts for 0.4% of the combined county land area in the state.

See the complete Washington ranking · What counts as a county equivalent?

What stands out about Wahkiakum County?

Wahkiakum County has more land than 342 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Wahkiakum County262.9 mi²
Washington median1,738.8 mi²
National median604.5 mi²

A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.

Does including water change its rank?

Using land plus water places Wahkiakum County at #2,868 nationally by total area, 12 places closer to the top than its land rank. The water assigned to this geography moves it ahead of some county equivalents with more land.

Its water share is 8.3%, compared with a national county-equivalent median of 1.2% — 7.1 percentage points higher. This describes the statistical geography’s land/water mix, not flood exposure or developable land.

Closest positions in the national land ranking

These entries sit immediately beside Wahkiakum County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#2879Davie County, North Carolina263.7Compare
#2880Wahkiakum County, Washington262.9This county
#2881Johnson County, Kentucky262Compare

Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.

Representative coordinates

The Census internal point is 46.314477, -123.402186. It represents a location inside the geography; it is not necessarily the centroid or the address of a courthouse.

Source and precision

U.S. Census Bureau, 2026 Gazetteer Files, Counties. Original ALAND: 680,980,757 m²; AWATER: 61,564,427 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.

Download the official county source ZIP ↗ · Methodology

Common questions

How many acres of land are in Wahkiakum County?

The land measurement converts to approximately 168,274 acres. Including water, total area is approximately 183,487 acres. One square mile equals 640 acres.

Why might another source show a different area?

Check whether it reports land or total area, its Census vintage, and its rounding. Our guide explains how to reconcile county area figures.

Can this establish a property boundary?

No. Statistical measurements and generalized maps do not establish property lines. Consult the relevant local surveying or land-records authority.

Cite this county

Download the complete CSV or JSON dataset