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ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/99018

99018

ZIP 99018 is Latah, Washington, in Spokane County; area code 509; Pacific time.

Type
Standard
Time zone
America/Los_Angeles
County
Spokane
Population
272
Coordinates
47.2917, -117.1521
☼ Live from 99018 — Latah, WA

Weather right now

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Local time: —

Where 99018 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 99018
  • 🔢 Type 99018 into a pocket calculator and turn it upside down: BIOGG — not quite a word, sorry.
  • ➕ As a number, 99,018 = 2 × 3 × 3 × 5501. Its digits add up to 27, a total 1,806 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11000001011001010
  • 🏠 Its numerical neighbours: 99017 (Lamont, WA, 35 mi away) and 99019 (Liberty Lake, WA, 24 mi away).
  • 🔄 Backwards, 99018 becomes 81099, which is not a ZIP code at all.
  • 👥 24 other ZIP codes are made of exactly the same digits (01899, 09189, 09819, 09891, 10989, 10998, …). The farthest-flung twin is 09891 in APO AA, a military post office, 7,363 miles away.
  • 🧭 Farther north than 96% of all ZIP codes, and farther west than 90%.
  • 🎯1,059 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 99018 and you would come out at 47.29°S, 62.85°E — 367 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 56m of daylight. Shortest: 8h 28m.
  • 📏 At 34.1 square miles of land, 99018 is bigger than 49% of ZIP codes — room for about 26 Central Parks.
🌙 The sky over 99018 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population272This ZIP272
Households115This ZIP115
Housing units122This ZIP122
Median age46.7This ZIP46.7Washington38.3US 38.9
Median household income$52,813This ZIP$52,813Washington$98,141US $80,734
Median home value$210,700This ZIP$210,700Washington$564,600US $332,700
Bachelor's degree or higher25.0%This ZIP25.0%
Mean commute41.0 minThis ZIP41.0 min
Population density8.0 / sq miThis ZIP8.0 / sq mi

Business and tax activity

Tax returns filed130This ZIP130
Total adjusted gross income$8,206,000This ZIP$8,206,000

Land area

Land area34.06 sq miThis ZIP34.06 sq mi
Water area0.00 sq mi

Other place names in 99018

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

ZIP codes near 99018

ZIPCityDistance
99039 Waverly, WA 4.9 mi
99033 Tekoa, WA 4.9 mi
99012 Fairfield, WA 6.5 mi
99158 Oakesdale, WA 11.7 mi
99170 Rosalia, WA 11.8 mi
83851 Plummer, ID 11.8 mi
99031 Spangle, WA 11.8 mi
99030 Rockford, WA 13.0 mi
99128 Farmington, WA 13.8 mi
99104 Belmont, WA 14.7 mi

Find every ZIP code within 10 miles of 99018 →

Questions about this ZIP code

Where is ZIP code 99018?

99018 is in Latah, Washington, in Spokane County, part of the Spokane-Spokane Valley, WA metropolitan area. Its published point location is 47.2917, -117.1521.

What county is 99018 in?

99018 lies in Spokane County.

What area code is 99018?

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

What time zone is 99018 in?

99018 uses America/Los_Angeles.

How many people live in 99018?

About 272 people live in ZIP code 99018, in 115 households, at 8.0 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 99018?

$52,813 a year, against $98,141 across Washington.

What ZIP codes are near 99018?

The closest are 99039 (4.9 mi), 99033 (4.9 mi), 99012 (6.5 mi), 99158 (11.7 mi) and 99170 (11.8 mi).

Is 99018 a PO Box ZIP code?

99018 is a standard ZIP code. A normal ZIP code with street delivery.

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zipcodes.pro. “99018 ZIP Code — Latah, Washington (Spokane County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/99018

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