ZIP code 99171
Where is ZIP code 99171?
Saint John, Washington
Whitman County · Standard ZIP code
ZIP code 99171 belongs to Saint John, Washington in Whitman County. 99171 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Pacific Time zone and uses area code 509. About 895 people live in the 99171 area, where the median household income is $53,333. The closest ZIP codes are 99176 (Thornton, 9.4 mi east), 99174 (Steptoe, 11.3 mi southeast) and 99149 (Malden, 11.6 mi northeast).
| ZIP code | 99171 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Saint John |
| State | Washington (WA) |
| County | Whitman County |
| Time zone | Pacific Time · now |
| Area code | 509 |
| Coordinates | 47.0755, -117.573 map |
| 3-digit prefix | 991 |
Population and income in 99171
| Population | 895 · lower than 73% of Washington ZIP codes |
|---|---|
| People per square mile | 4 · lower than 89% of Washington ZIP codes |
| Median age | 55.7 years · higher than 86% of Washington ZIP codes |
| Men / women | 45% / 55% |
| Median household income | $53,333 · lower than 92% of Washington ZIP codes |
| Income per person | $32,685 |
| Below the poverty line | 13% |
| Bachelor’s degree or higher | 25% of adults 25+ |
| Median home value | $220,500 · lower than 94% of Washington ZIP codes |
| Median rent | $929 a month |
| Housing units | 452 |
| Households | 408 (2.08 people on average) |
| Owners / renters | 78% / 23% |
| Land area | 250.28 sq mi (plus 3.71 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 99171. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 99171
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 99176 | Thornton, WA | 9.4 mi E | Standard |
| 99174 | Steptoe, WA | 11.3 mi SE | PO Box only |
| 99149 | Malden, WA | 11.6 mi NE | PO Box only |
| 99125 | Endicott, WA | 11.9 mi SW | Standard |
| 99170 | Rosalia, WA | 12.6 mi NE | Standard |
| 99158 | Oakesdale, WA | 16 mi E | Standard |
| 99017 | Lamont, WA | 16.2 mi NW | Standard |
| 99111 | Colfax, WA | 16.6 mi SE | Standard |
| 99104 | Belmont, WA | 18.6 mi E | Standard |
| 99130 | Garfield, WA | 20.6 mi E | Standard |
| 99128 | Farmington, WA | 23.4 mi E | Standard |
| 99039 | Waverly, WA | 24.6 mi NE | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 99171 or measure the distance to another ZIP code.
How to address mail to 99171
123 MAIN ST
SAINT JOHN WA 99171
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (99171-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 99171?
- 99171 is a Saint John, Washington ZIP code.
- What county is 99171 in?
- ZIP code 99171 is in Whitman County, Washington.
- What time zone is ZIP code 99171 in?
- 99171 is in the Pacific Time zone (America/Los_Angeles).
- What area code is 99171?
- Phone numbers in ZIP code 99171 use area code 509.
- What is the population of ZIP code 99171?
- About 895 people live in ZIP code 99171, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 99171?
- The median household income in 99171 is $53,333 a year, lower than 92% of Washington ZIP codes.
- What ZIP codes are near 99171?
- The nearest ZIP codes to 99171 are 99176 (Thornton, 9.4 miles), 99174 (Steptoe, 11.3 miles), 99149 (Malden, 11.6 miles) and 99125 (Endicott, 11.9 miles).