Onalaska, WA ZIP Codes
2 ZIP codes serve Onalaska, Washington: 98532 and 98570. Together they are home to 32,454 residents in 11,858 households. That is more than the 848 people counted inside Onalaska Census-designated place, because these ZIP codes reach past its boundary. Median household income ranges from $89,910 in 98532 to $95,795 in 98570.
Onalaska Census-designated place
| Measure | Census figure |
|---|---|
| Residents | 848 |
| Households | 333 |
| Median household income | not published |
| Median home value | $423,700 |
| Median age | 38.4 |
| Median rent | $844 |
All 2 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 32,454 |
| Households (sum of ZIP codes) | 11,858 |
| Median household income, range across ZIP codes | $89,910 (98532) to $95,795 (98570) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $90,866 |
| Homeowners | 78.1% |
| Households with kids under 18 | 31.2% |
| Moved in the past year | 9.5% |
| Carrier routes in EDDM2GO's route library | 23 routes, 11,718 homes (2 of 2 ZIP codes) |
Top facts
- Highest median household income in Onalaska: 98570 ($95,795)
- Most residents: 98532 (27,135 people)
- Highest homeownership: 98532 (79.2% own their home)
- Most households with kids: 98570 (36.1% of households)
- Most new movers: 98570 (13.3% moved in last year)
- Youngest median age: 98532 (41.1 years)
- Highest median home value: 98570 ($428,200)
Every ZIP code in Onalaska
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 98532 | Chehalis | 27,135 | 9,931 | $89,910 | $427,100 | 79.2% | 30.3% | 8.8% | 20 | 10,927 | 0% of its land |
| 98570 | Onalaska | 5,319 | 1,927 | $95,795 | $428,200 | 72.4% | 36.1% | 13.3% | 3 | 1,515 | 1% of its land; mailing city |
A ZIP code is listed for Onalaska when at least 10% of its land lies inside the Onalaska Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Onalaska. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Onalaska.
Counties
- Lewis County — 22 ZIP codes
Nearby cities sharing these ZIP codes
- Chehalis — 1 ZIP code
Price a mailing to Onalaska ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Onalaska, WA?
- 98532 and 98570. A ZIP code is listed for Onalaska when at least 10% of its land lies inside the Onalaska Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Onalaska.
- What is the population of Onalaska, WA?
- The Census Bureau counts 848 residents inside Onalaska Census-designated place (ACS 2020–2024). The 2 ZIP codes that serve Onalaska hold 32,454 residents in all.
- What is the median household income in Onalaska, WA?
- Across its ZIP codes the medians run from $89,910 to $95,795.
- Which Onalaska ZIP code has the highest median household income?
- 98570, at $95,795, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Onalaska, WA?
- For the 2 of 2 ZIP codes in EDDM2GO's stored route library: 23 carrier routes reaching 11,718 residential and 722 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.