Cosmopolis, WA ZIP Codes
2 ZIP codes serve Cosmopolis, Washington: 98563 and 98537. Together they are home to 10,424 residents in 4,272 households. That is more than the 2,202 people counted inside Cosmopolis city limits, because these ZIP codes reach past its boundary. Median household income ranges from $79,459 in 98537 to $84,634 in 98563.
Cosmopolis city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 2,202 |
| Households | 762 |
| Median household income | $84,853 |
| Median home value | $317,000 |
| Median age | 39.2 |
| Median rent | not published |
All 2 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 10,424 |
| Households (sum of ZIP codes) | 4,272 |
| Median household income, range across ZIP codes | $79,459 (98537) to $84,634 (98563) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $83,391 |
| Homeowners | 76.9% |
| Households with kids under 18 | 22.2% |
| Moved in the past year | 14.2% |
| Carrier routes in EDDM2GO's route library | 9 routes, 3,638 homes (2 of 2 ZIP codes) |
Top facts
- Highest median household income in Cosmopolis: 98563 ($84,634)
- Most residents: 98563 (7,604 people)
- Highest homeownership: 98537 (85.0% own their home)
- Most households with kids: 98537 (34.5% of households)
- Most new movers: 98563 (16.8% moved in last year)
- Youngest median age: 98537 (41.2 years)
- Highest median home value: 98563 ($349,200)
Every ZIP code in Cosmopolis
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 98563 | Montesano | 7,604 | 3,246 | $84,634 | $349,200 | 74.4% | 18.3% | 16.8% | 8 | 3,585 | 0% of its land |
| 98537 | Cosmopolis | 2,820 | 1,026 | $79,459 | $339,000 | 85.0% | 34.5% | 7.2% | 1 | 211 | 1% of its land; mailing city |
A ZIP code is listed for Cosmopolis when at least 10% of its land lies inside Cosmopolis city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Cosmopolis. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Cosmopolis.
Counties
- Grays Harbor County — 21 ZIP codes
Price a mailing to Cosmopolis ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Cosmopolis, WA?
- 98563 and 98537. A ZIP code is listed for Cosmopolis when at least 10% of its land lies inside Cosmopolis city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Cosmopolis.
- What is the population of Cosmopolis, WA?
- The Census Bureau counts 2,202 residents inside Cosmopolis city limits (ACS 2020–2024). The 2 ZIP codes that serve Cosmopolis hold 10,424 residents in all.
- What is the median household income in Cosmopolis, WA?
- $84,853 inside Cosmopolis city limits, per the Census Bureau. Across its ZIP codes the medians run from $79,459 to $84,634.
- Which Cosmopolis ZIP code has the highest median household income?
- 98563, at $84,634, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Cosmopolis, WA?
- For the 2 of 2 ZIP codes in EDDM2GO's stored route library: 9 carrier routes reaching 3,638 residential and 158 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.