Longview-Kelso, WA metro area ZIP codes
The Longview-Kelso, WA metropolitan statistical area (CBSA 31020) covers 1 county in Washington and 10 ZIP codes.
- ZIP codes
- 10
- Population
- 116,840
- Avg. median income
- $78,300population-weighted
- Counties
- 1
Click anywhere on the map to see which ZIP code it's in.
Counties in the Longview-Kelso, WA area
ZIP codes in the Longview-Kelso, WA area
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 98581 | Ryderwood | Cowlitz County | 419 | $43,009 | $262,400 |
| 98603 | Ariel | Cowlitz County | 1,267 | $78,281 | $554,000 |
| 98609 | Carrolls | Cowlitz County | 0 | — | — |
| 98611 | Castle Rock | Cowlitz County | 9,302 | $86,322 | $475,900 |
| 98625 | Kalama | Cowlitz County | 7,655 | $116,435 | $538,700 |
| 98626 | Kelso | Cowlitz County | 26,892 | $75,528 | $387,000 |
| 98632 | Longview | Cowlitz County | 50,635 | $66,305 | $387,000 |
| 98645 | Silverlake | Cowlitz County | 2,216 | $101,429 | $482,700 |
| 98649 | Toutle | Cowlitz County | 929 | $73,750 | $503,200 |
| 98674 | Woodland | Cowlitz County | 17,525 | $94,245 | $585,000 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Frequently asked questions
How many ZIP codes are in the Longview-Kelso, WA metro area?
10 ZIP codes, based on each ZIP code's main county.
Which counties make up the Longview-Kelso, WA area?
Cowlitz County.
What is an MSA?
A metropolitan statistical area (MSA) is a core city of 50,000+ people plus the surrounding counties tied to it by commuting, as defined by the U.S. Office of Management and Budget. Micropolitan areas have a core of 10,000–50,000. Together they are called core-based statistical areas (CBSAs).