ZIP codes
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St. John, WA Demographics & ZIP Codes
St. John, Washington demographics and median household income by ZIP code (in Whitman County) — 1 ZIP codes — population 991 — median income $61,500 — avg. home value $210,200. Compare income, housing, and population across ZIP codes on US5.
Population
991
Median household income (avg.)
$61,500
82% of U.S. median
Average home value
$210,200
60% of U.S. median
Average rent
$620
53% of U.S. median
Median age (avg.)
51.6
St. John demographics
St. John, Washington covers 1 ZIP code primarily in Whitman County, with a combined ZIP-area population of about 991.
Across ZIP codes with age data, the average median age is about 51.6 years.
Median household income in St. John
The average median household income across ZIP codes in St. John, Washington is about $61,500 — about 29% below the WA ZIP average ($87,083), and about 18% below the U.S. median ($75,149).
The highest median household income among listed ZIPs is about $61,500 in 99171.
Housing in St. John
For housing in St. John, Washington, the average median home value is about $210,200 and the average median rent is about $620.
The most populous ZIP in this set is 99171 (about 991 residents). Use the table below to compare population, income, and home values across codes.
ZIP codes in St. John
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 99171 | St. John | Whitman County | WA | 991 | $61,500 | $210,200 |
Frequently asked questions
What are the demographics of St. John?
St. John, Washington has a combined ZIP-area population of about 991 across 1 ZIP codes (primarily Whitman County). Browse the ZIP table below for population, income, and housing by code.
What is the median household income in St. John?
The average median household income across ZIP codes in St. John, Washington is about $61,500, about 29% below the state ZIP average ($87,083), and about 18% below the U.S. median ($75,149). Average median home value is about $210,200.
How many ZIP codes are in St. John?
St. John, Washington includes 1 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for St. John?
This page lists ZIP codes in St. John, Washington with population, median household income, and home value. Select a ZIP for a full demographics profile.