99113
ZIP 99113 is Colton, Washington, in Whitman County; area code 509; Pacific time.
- Type
- Standard
- Time zone
- America/Los_Angeles
- County
- Whitman
- Metro area
- Pullman, WA
- Population
- 560
- Coordinates
- 46.5845, -117.1961
Weather right now
Asking the National Weather Service…
Where 99113 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 99113 into a pocket calculator and turn it upside down: EIIGG — not quite a word, sorry.
- ➕ As a number, 99,113 = 7 × 14159. Its digits add up to 23, a total 2,533 other ZIP codes share.
- 💾In binary, the way a computer stores it:
11000001100101001 - 🏠 Its numerical neighbours: 99111 (Colfax, WA, 22 mi away) and 99114 (Colville, WA, 145 mi away).
- 🔄 Backwards, 99113 becomes 31199, 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, 2,236 miles away.
- 🧭 Farther north than 95% of all ZIP codes, and farther west than 90%.
- 🎯1,044 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 99113 and you would come out at 46.58°S, 62.80°E — 392 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 50m of daylight. Shortest: 8h 34m.
- 📏 At 98.5 square miles of land, 99113 is bigger than 77% of ZIP codes — room for about 75 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 560This ZIP560 |
|---|---|
| Households | 236This ZIP236 |
| Housing units | 267This ZIP267 |
| Median age | 53.0This ZIP53.0Washington38.3US 38.9 |
| Median household income | $104,643This ZIP$104,643Washington$98,141US $80,734 |
| Median home value | $398,000This ZIP$398,000Washington$564,600US $332,700 |
| Median gross rent | $1,281This ZIP$1,281Washington$1,760US $1,413 |
| Bachelor's degree or higher | 49.8%This ZIP49.8% |
| Mean commute | 22.7 minThis ZIP22.7 min |
| Population density | 5.7 / sq miThis ZIP5.7 / sq mi |
Business and tax activity
| Business establishments | 12This ZIP12 |
|---|---|
| Employees | 33This ZIP33 |
| Annual payroll | $1,496,000This ZIP$1,496,000 |
| Tax returns filed | 380This ZIP380 |
| Total adjusted gross income | $33,530,000This ZIP$33,530,000 |
Land area
| Land area | 98.49 sq miThis ZIP98.49 sq mi |
|---|---|
| Water area | 2.21 sq miThis ZIP2.21 sq mi |
Other place names in 99113
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 99113
| ZIP | City | Distance |
|---|---|---|
99179 | Uniontown, WA | 7.0 mi |
99163 | Pullman, WA | 10.1 mi |
99164 | Pullman, WA | 10.2 mi |
83844 | Moscow, ID | 13.0 mi |
83832 | Genesee, ID | 13.8 mi |
99102 | Albion, WA | 14.6 mi |
99403 | Clarkston, WA | 15.1 mi |
83843 | Moscow, ID | 15.4 mi |
99347 | Pomeroy, WA | 21.2 mi |
83872 | Viola, ID | 21.3 mi |
Find every ZIP code within 10 miles of 99113 →
Questions about this ZIP code
Where is ZIP code 99113?
99113 is in Colton, Washington, in Whitman County, part of the Pullman, WA micropolitan area. Its published point location is 46.5845, -117.1961.
What county is 99113 in?
99113 lies in Whitman County.
What area code is 99113?
Colton uses area code 509, from NANPA's telephone records.
What time zone is 99113 in?
99113 uses America/Los_Angeles.
How many people live in 99113?
About 560 people live in ZIP code 99113, in 236 households, at 5.7 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 99113?
$104,643 a year, against $98,141 across Washington.
What ZIP codes are near 99113?
The closest are 99179 (7 mi), 99163 (10.1 mi), 99164 (10.2 mi), 83844 (13 mi) and 83832 (13.8 mi).
Is 99113 a PO Box ZIP code?
99113 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “99113 ZIP Code — Colton, Washington (Whitman County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/99113
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/99113.json Underlying data is public domain or openly licensed — sources, vintages and licences.