ZIP code 99176
Where is ZIP code 99176?
Thornton, Washington
Whitman County · Standard ZIP code
ZIP code 99176 belongs to Thornton, Washington in Whitman County. 99176 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 163 people live in the 99176 area, where the median household income is $128,000. The closest ZIP codes are 99158 (Oakesdale, 6.8 mi east), 99170 (Rosalia, 6.8 mi north) and 99149 (Malden, 8.2 mi northwest).
| ZIP code | 99176 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Thornton |
| State | Washington (WA) |
| County | Whitman County |
| Time zone | Pacific Time · now |
| Area code | 509 |
| Coordinates | 47.1253, -117.3864 map |
| 3-digit prefix | 991 |
Population and income in 99176
| Population | 163 · lower than 92% of Washington ZIP codes |
|---|---|
| People per square mile | 3 · lower than 91% of Washington ZIP codes |
| Median age | 58 years · higher than 88% of Washington ZIP codes |
| Men / women | 51% / 49% |
| Median household income | $128,000 · higher than 88% of Washington ZIP codes |
| Income per person | $55,890 |
| Below the poverty line | 0.0% |
| Bachelor’s degree or higher | 18% of adults 25+ |
| Median home value | $283,300 · lower than 82% of Washington ZIP codes |
| Median rent | $781 a month |
| Housing units | 90 |
| Households | 72 (2.26 people on average) |
| Owners / renters | 81% / 19% |
| Land area | 50.11 sq mi |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 99176. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 99176
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 99158 | Oakesdale, WA | 6.8 mi E | Standard |
| 99170 | Rosalia, WA | 6.8 mi N | Standard |
| 99149 | Malden, WA | 8.2 mi NW | PO Box only |
| 99174 | Steptoe, WA | 8.4 mi S | PO Box only |
| 99171 | Saint John, WA | 9.4 mi W | Standard |
| 99104 | Belmont, WA | 10.3 mi E | Standard |
| 99130 | Garfield, WA | 14.2 mi SE | Standard |
| 99128 | Farmington, WA | 14.9 mi E | Standard |
| 99033 | Tekoa, WA | 15.9 mi NE | Standard |
| 99018 | Latah, WA | 16.7 mi NE | Standard |
| 99039 | Waverly, WA | 16.8 mi NE | PO Box only |
| 99111 | Colfax, WA | 17 mi S | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 99176 or measure the distance to another ZIP code.
How to address mail to 99176
123 MAIN ST
THORNTON WA 99176
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (99176-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 99176?
- 99176 is a Thornton, Washington ZIP code.
- What county is 99176 in?
- ZIP code 99176 is in Whitman County, Washington.
- What time zone is ZIP code 99176 in?
- 99176 is in the Pacific Time zone (America/Los_Angeles).
- What area code is 99176?
- Phone numbers in ZIP code 99176 use area code 509.
- What is the population of ZIP code 99176?
- About 163 people live in ZIP code 99176, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 99176?
- The median household income in 99176 is $128,000 a year, higher than 88% of Washington ZIP codes.
- What ZIP codes are near 99176?
- The nearest ZIP codes to 99176 are 99158 (Oakesdale, 6.8 miles), 99170 (Rosalia, 6.8 miles), 99149 (Malden, 8.2 miles) and 99174 (Steptoe, 8.4 miles).