99131
ZIP 99131 is Gifford, Washington, in Stevens County; area code 509; Pacific time.
- Type
- Standard
- Time zone
- America/Los_Angeles
- County
- Stevens
- Metro area
- Spokane-Spokane Valley, WA
- Population
- 127
- Coordinates
- 48.2977, -118.0950
Weather right now
Asking the National Weather Service…
Where 99131 is
Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.
- 🔢 Type 99131 into a pocket calculator and turn it upside down: IEIGG — not quite a word, sorry.
- ➕ 99131 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 23, a total 2,533 other ZIP codes share.
- 💾In binary, the way a computer stores it:
11000001100111011 - 🏠 Its numerical neighbours: 99130 (Garfield, WA, 99 mi away) and 99133 (Grand Coulee, WA, 52 mi away).
- 🔄 Backwards, 99131 becomes 13199, which is not a ZIP code at all.
- 👥 11 other ZIP codes are made of exactly the same digits (11939, 19139, 19193, 19319, 19931, 39119, …). The farthest-flung twin is 11939 in East Marion, NY, 2,266 miles away.
- 🧭 Farther north than 98% of all ZIP codes, and farther west than 91%.
- 🎯1,127 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 99131 and you would come out at 48.30°S, 61.91°E — 385 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 16h 06m of daylight. Shortest: 8h 19m.
- 📏 At 17.5 square miles of land, 99131 is bigger than 35% of ZIP codes — room for about 13 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 127This ZIP127 |
|---|---|
| Households | 96This ZIP96 |
| Housing units | 115This ZIP115 |
| Median age | 70.1This ZIP70.1Washington38.3US 38.9 |
| Median household income | $35,391This ZIP$35,391Washington$98,141US $80,734 |
| Median home value | $245,800This ZIP$245,800Washington$564,600US $332,700 |
| Bachelor's degree or higher | 5.5%This ZIP5.5% |
| Population density | 7.3 / sq miThis ZIP7.3 / sq mi |
Land area
| Land area | 17.50 sq miThis ZIP17.50 sq mi |
|---|---|
| Water area | 5.91 sq miThis ZIP5.91 sq mi |
ZIP codes near 99131
| ZIP | City | Distance |
|---|---|---|
99101 | Addy, WA | 7.4 mi |
99167 | Rice, WA | 8.1 mi |
99137 | Hunters, WA | 10.4 mi |
99138 | Inchelium, WA | 14.4 mi |
99109 | Chewelah, WA | 18.2 mi |
99181 | Valley, WA | 18.5 mi |
99129 | Fruitland, WA | 20.0 mi |
99173 | Springdale, WA | 20.8 mi |
99151 | Marcus, WA | 25.4 mi |
99148 | Loon Lake, WA | 27.5 mi |
Find every ZIP code within 10 miles of 99131 →
Questions about this ZIP code
Where is ZIP code 99131?
99131 is in Gifford, Washington, in Stevens County, part of the Spokane-Spokane Valley, WA metropolitan area. Its published point location is 48.2977, -118.0950.
What county is 99131 in?
99131 lies in Stevens County.
What area code is 99131?
Gifford uses area code 509, from NANPA's telephone records.
What time zone is 99131 in?
99131 uses America/Los_Angeles.
How many people live in 99131?
About 127 people live in ZIP code 99131, in 96 households, at 7.3 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What is the median household income in 99131?
$35,391 a year, against $98,141 across Washington.
What ZIP codes are near 99131?
The closest are 99101 (7.4 mi), 99167 (8.1 mi), 99137 (10.4 mi), 99138 (14.4 mi) and 99109 (18.2 mi).
Is 99131 a PO Box ZIP code?
99131 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “99131 ZIP Code — Gifford, Washington (Stevens County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/99131
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/99131.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.