St. John, WA ZIP Codes
One ZIP code serves St. John, Washington: 99171. Together they are home to 895 residents in 408 households. That is more than the 607 people counted inside St. John town limits, because these ZIP codes reach past its boundary.
St. John town limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 607 |
| Households | 275 |
| Median household income | $46,250 |
| Median home value | $208,300 |
| Median age | 57.3 |
| Median rent | $888 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 895 |
| Households (sum of ZIP codes) | 408 |
| Median household income, range across ZIP codes | $53,333 (99171) to $53,333 (99171) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $53,333 |
| Homeowners | 77.5% |
| Households with kids under 18 | 14.7% |
| Moved in the past year | 5.3% |
| Carrier routes in EDDM2GO's route library | not loaded yet |
Every ZIP code in St. John
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 99171 | Saint John | 895 | 408 | $53,333 | $220,500 | 77.5% | 14.7% | 5.3% | — | — | 0% of its land |
A ZIP code is listed for St. John when at least 10% of its land lies inside St. John town limits, when it holds at least 10% of the place's land, or when its USPS mailing city is St. John. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside St. John.
Counties
- Whitman County — 20 ZIP codes
Price a mailing to St. John ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in St. John, WA?
- 99171. A ZIP code is listed for St.
- What is the population of St. John, WA?
- The Census Bureau counts 607 residents inside St. John town limits (ACS 2020–2024). The 1 ZIP code that serve St. John hold 895 residents in all.
- What is the median household income in St. John, WA?
- $46,250 inside St. John town limits, per the Census Bureau. Across its ZIP codes the medians run from $53,333 to $53,333.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.