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zipcodes.pro — ZIP/99115

99115

ZIP 99115 is Coulee City, Washington, mostly in Douglas County; area code 509; Pacific time.

Type
Standard
Time zone
America/Los_Angeles
County
Douglas +1 more
Population
1,369
Coordinates
47.6741, -119.3777
☼ Live from 99115 — Coulee City, WA

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Local time: —

Where 99115 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.

★ Weird and wonderful facts about 99115
  • 🔢 Type 99115 into a pocket calculator and turn it upside down: SIIGG — not quite a word, sorry.
  • ➕ As a number, 99,115 = 5 × 43 × 461. Its digits add up to 25, a total 2,242 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11000001100101011
  • 🏠 Its numerical neighbours: 99114 (Colville, WA, 102 mi away) and 99116 (Coulee Dam, WA, 31 mi away).
  • 🔄 Backwards, 99115 becomes 51199, which is not a ZIP code at all.
  • 👥 12 other ZIP codes are made of exactly the same digits (11599, 11959, 19195, 19519, 19951, 59911, …). The farthest-flung twin is 11959 in Quogue, NY, 2,326 miles away.
  • 🧭 Farther north than 97% of all ZIP codes, and farther west than 93%.
  • 🎯1,166 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 99115 and you would come out at 47.67°S, 60.62°E — 454 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 16h 00m of daylight. Shortest: 8h 25m.
  • 📏 At 420.0 square miles of land, 99115 is bigger than 97% of ZIP codes — room for about 319 Central Parks.
🌙 The sky over 99115 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,369This ZIP1,369
Households552This ZIP552
Housing units982This ZIP982
Median age50.5This ZIP50.5Washington38.3US 38.9
Median household income$62,708This ZIP$62,708Washington$98,141US $80,734
Median home value$247,200This ZIP$247,200Washington$564,600US $332,700
Median gross rent$725This ZIP$725Washington$1,760US $1,413
Bachelor's degree or higher18.0%This ZIP18.0%
Mean commute26.5 minThis ZIP26.5 min
Population density3.3 / sq miThis ZIP3.3 / sq mi

Business and tax activity

Business establishments25This ZIP25
Employees147This ZIP147
Annual payroll$8,324,000This ZIP$8,324,000
Tax returns filed550This ZIP550
Total adjusted gross income$38,286,000This ZIP$38,286,000

Land area

Land area420.01 sq miThis ZIP420.01 sq mi
Water area28.77 sq miThis ZIP28.77 sq mi

Counties 99115 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Douglas County 69.8%
Grant County 30.2%

Other place names in 99115

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 99115

ZIPCityDistance
99135 Hartline, WA 13.4 mi
98853 Stratford, WA 15.0 mi
98830 Mansfield, WA 16.0 mi
98851 Soap Lake, WA 18.2 mi
98860 Wilson Creek, WA 19.0 mi
99123 Electric City, WA 21.0 mi
99103 Almira, WA 21.5 mi
98858 Waterville, WA 23.8 mi
98813 Bridgeport, WA 25.5 mi
99133 Grand Coulee, WA 25.8 mi

Find every ZIP code within 10 miles of 99115 →

Questions about this ZIP code

Where is ZIP code 99115?

99115 is in Coulee City, Washington, in Douglas County, part of the Wenatchee-East Wenatchee, WA metropolitan area. Its published point location is 47.6741, -119.3777.

What county is 99115 in?

99115 spans 2 counties: Douglas County and Grant County. Most of it falls in Douglas County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.

What area code is 99115?

Coulee City uses area code 509, from NANPA's telephone records.

What time zone is 99115 in?

99115 uses America/Los_Angeles.

How many people live in 99115?

About 1,369 people live in ZIP code 99115, in 552 households, at 3.3 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 99115?

$62,708 a year, against $98,141 across Washington.

What ZIP codes are near 99115?

The closest are 99135 (13.4 mi), 98853 (15 mi), 98830 (16 mi), 98851 (18.2 mi) and 98860 (19 mi).

Is 99115 a PO Box ZIP code?

99115 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “99115 ZIP Code — Coulee City, Washington (Douglas County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/99115

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