Dayton, WA ZIP Codes
One ZIP code serves Dayton, Washington: 99328. Together they are home to 3,646 residents in 1,667 households. That is more than the 2,774 people counted inside Dayton city limits, because these ZIP codes reach past its boundary.
Dayton city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 2,774 |
| Households | 1,235 |
| Median household income | $70,625 |
| Median home value | $243,600 |
| Median age | 45.3 |
| Median rent | $973 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 3,646 |
| Households (sum of ZIP codes) | 1,667 |
| Median household income, range across ZIP codes | $72,756 (99328) to $72,756 (99328) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $72,756 |
| Homeowners | 77.4% |
| Households with kids under 18 | 19.4% |
| Moved in the past year | 13.2% |
| Carrier routes in EDDM2GO's route library | 5 routes, 1,640 homes (1 of 1 ZIP codes) |
Every ZIP code in Dayton
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 99328 | Dayton | 3,646 | 1,667 | $72,756 | $272,100 | 77.4% | 19.4% | 13.2% | 5 | 1,801 | 0% of its land; mailing city |
A ZIP code is listed for Dayton when at least 10% of its land lies inside Dayton city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Dayton. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Dayton.
Counties
- Columbia County — 3 ZIP codes
Price a mailing to Dayton ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Dayton, WA?
- 99328. A ZIP code is listed for Dayton when at least 10% of its land lies inside Dayton city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Dayton.
- What is the population of Dayton, WA?
- The Census Bureau counts 2,774 residents inside Dayton city limits (ACS 2020–2024). The 1 ZIP code that serve Dayton hold 3,646 residents in all.
- What is the median household income in Dayton, WA?
- $70,625 inside Dayton city limits, per the Census Bureau. Across its ZIP codes the medians run from $72,756 to $72,756.
- How many carrier routes and mailboxes are in Dayton, WA?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 5 carrier routes reaching 1,640 residential and 160 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.