| ZIP Codes: | 15 ZIP Codes (12 Standard, 3 PO Box, 0 Unique) [See All] |
| Area Code: | 509 |
| Timezone: | Pacific (GMT -08:00) |
| Local Time: | 2:14:16 PM |
| Population: | 23,938 [See All] |
| FIPS: | 53039 |
| Land Area: | 2,001 sq mi |
| Water Area: | 32 sq mi |
| Coordinates: | 45.8354, -121.1101 |
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23,938 residents live across 15 ZIPs covering 2,001 sq mi, served by 15 distinct USPS-recognized cities.
Population moved from 20,526 to 23,883 from 2014 to 2024 — a +16.4% change. 9 ZIPs gained residents, 5 lost.
The county's wealthiest ZIP 98672 (White Salmon, $97,622 median) and poorest ZIP 98673 (Wishram, $42,188) are 26.6 miles apart — a 2.3× income gap across local geography.
Median home values vary 4.5× across this county — from $162,000 in 98673 (Wishram) to $730,300 in 98650 (Trout Lake).
Density varies 183× across the county — from 1 people/sq mi in 99356 (Roosevelt) to 270 in 98628 (Klickitat).
Educational attainment ranges from 3.7% bachelor's+ in 98673 (Wishram) to 48.2% in 98672 (White Salmon) — the breadth of educational profiles across the area.
Within Washington, this is the #28 most populous of 39 counties and ranks #28 for median household income with the #6 fastest decade growth .
Weighted by population, the typical household earns about $74,948 across the county — reflecting what a typical resident sees, not a simple ZIP average.
31.3% of adults age 25+ hold a bachelor's degree or higher (5,690 of 18,188 reporting).
12 Standard delivery, 3 PO Box only, 0 single-entity Unique ZIPs serve this county.
Klickitat County grew 16.6% over the past decade — concentrated in 3 high-growth ZIPs:
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 98620 | Goldendale | Standard | 7,936 | $60,500 | 609.6 | 11.6% |
| 98672 | White Salmon | Standard | 7,390 | $97,622 | 171.1 | 28.9% |
| 98635 | Lyle | Standard | 1,721 | $61,448 | 128.9 | -0.5% |
| 98617 | Dallesport | PO Box | 1,380 | $71,130 | 26.8 | 26.6% |
| 98650 | Trout Lake | Standard | 1,188 | $76,607 | 178.4 | 35.6% |
| 98605 | Bingen | Standard | 1,117 | $72,917 | 70.1 | -17.2% |
| 98628 | Klickitat | Standard | 577 | $63,438 | 2.1 | 39.7% |
| 98619 | Glenwood | Standard | 527 | $76,667 | 146.2 | 8.9% |
| 98613 | Centerville | Standard | 458 | $95,000 | 102.2 | -27.3% |
| 99322 | Bickleton | Standard | 412 | — | 216.7 | 91.6% |
| 98673 | Wishram | PO Box | 411 | $42,188 | 4.6 | -2.6% |
| 99356 | Roosevelt | Standard | 378 | $55,750 | 256.7 | 32.6% |
| 98602 | Appleton | Standard | 320 | $53,617 | 48.0 | 233.3% |
| 98670 | Wahkiacus | Standard | 68 | — | 39.6 | -25.3% |
| 98623 | Husum | PO Box | 55 | — | 0.0 | — |