ZIP Codes of Lewis County, WA

Population & People
Population & People
Total Population
86,887
Household Income
Household Income
Median Income
$75,003
Housing
Housing
Total Housing Units
36,973
Business & Economy
Business & Economy
Total Businesses
2,009
Employment
Employment
Employment Rate
52.98%
Education
Education
Bachelor's Degree+
21.72%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 22 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:22 ZIP Codes (18 Standard, 4 PO Box, 0 Unique) [See All]
Area Codes:360 / 564
Timezone:Pacific (GMT -08:00)
Local Time:11:55:36 PM
Population:86,887 [See All]
FIPS:53041
CBSA:Centralia, WA
Land Area:2,387 sq mi
Water Area:30 sq mi
Coordinates:46.5668, -122.6620
Quick Link:
https://www.zip-codes.com/county/wa-lewis.asp
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Notable income spread
Median income ranges $39,208 to $105,000 across ZIPs — a 2.7× gap.
Wide geographic spread
ZIPs range from 496.4 sq mi down to 6.16 — a 81× sprawl ratio.

Standout ZIPs in this County


Most Populous
Centralia · 27,337 people
31.5% of county total
Highest Income
Curtis · $105,000 median
1.4× county average
Largest Land Area
Randle · 496.4 sq mi
Spans the most ground
Fastest Growth
Randle · 42.9% (10-yr)
1,768 → 2,527 residents
Most Educated
Vader · 27.0% bachelor's+
298 of 1,104 adults 25+

Things worth knowing about Lewis County


86,887 residents live across 22 ZIPs covering 2,387 sq mi, served by 22 distinct USPS-recognized cities.

Population moved from 76,883 to 86,748 from 2014 to 2024 — a +12.8% change. 15 ZIPs gained residents, 4 lost (and 1 held flat).

The county's wealthiest ZIP 98538 (Curtis, $105,000 median) and poorest ZIP 98533 (Cinebar, $39,208) are 34.4 miles apart — a 2.7× income gap across local geography.

Median home values vary 2.0× across this county — from $246,600 in 98336 (Glenoma) to $482,100 in 98538 (Curtis).

Density varies 2063× across the county — from 1 people/sq mi in 98361 (Packwood) to 2,869 in 98565 (Napavine).

Educational attainment ranges from 9.4% bachelor's+ in 98572 (Pe Ell) to 27.0% in 98593 (Vader) — the breadth of educational profiles across the area.

Within Washington, this is the #15 most populous of 39 counties and ranks #22 for median household income with the #16 fastest decade growth .

Weighted by population, the typical household earns about $76,295 across the county — reflecting what a typical resident sees, not a simple ZIP average.

21.7% of adults age 25+ hold a bachelor's degree or higher (13,484 of 62,069 reporting).

18 Standard delivery, 4 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Lewis County


Big & sparse

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.

Total area
2,387
square miles
Avg density
36.4
people per sq mi
Population
86,887
across 22 ZIPs
Randle
496.4 sq mi
2,527 residents
Packwood
328.6 sq mi
457 residents
Chehalis
316.2 sq mi
27,135 residents

All ZIP Codes in Lewis County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
98531CentraliaStandard27,337$63,406131.913.6%
98532ChehalisStandard27,135$89,910316.213.2%
98596WinlockStandard6,950$80,18888.4-9.4%
98570OnalaskaStandard5,319$95,79577.427.8%
98591ToledoStandard3,965$78,952108.611.1%
98564MossyrockStandard3,382$60,147161.041.2%
98377RandleStandard2,527$56,167496.442.9%
98356MortonStandard2,172$60,060113.09.3%
98593VaderStandard1,541$84,24414.566.4%
98336GlenomaStandard981$67,63283.013.3%
98533CinebarStandard890$39,208149.116.5%
98572Pe EllStandard834$64,01338.77.6%
98355MineralStandard702$102,438126.024.7%
98542EthelStandard625$52,96310.936.2%
98565NapavinePO Box568$73,7500.210.1%
98585Silver CreekStandard465$74,16722.4-29.5%
98538CurtisStandard460$105,000113.9103.5%
98361PackwoodStandard457328.6-56.2%
98582SalkumStandard438$89,3876.2-13.1%
98539DotyPO Box139$87,6250.5
98544GalvinPO Box00.0
98522AdnaPO Box0.0

Adjacent & Nearby Counties