Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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/80163

80163

ZIP 80163 is in Littleton, Colorado, in Douglas County; area codes 303, 720 and 983; Mountain time. Littleton has 16 ZIP codes in all.

Type
No street area
Time zone
America/Denver
County
Douglas
Coordinates
39.3479, -104.9947

The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

This ZIP code has no Census tabulation area of its own. Its point falls inside ZCTA 80135, whose figures describe that area — not this ZIP code.

☼ Live from 80163 — Littleton, CO

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 80163 is

This ZIP code has no Census tabulation area, so there is no boundary to draw — the marker is its published point location.

★ Weird and wonderful facts about 80163
  • 🔢 Type 80163 into a pocket calculator and turn it upside down: EgIOB — not quite a word, sorry.
  • ➕ As a number, 80,163 = 3 × 3 × 3 × 2969. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10011100100100011
  • 🏠 Its numerical neighbours: 80162 (Littleton, CO, 17 mi away) and 80165 (Littleton, CO, 18 mi away).
  • 🔄 Backwards, 80163 becomes 36108 — and that is a real ZIP code: Montgomery, AL, 1,146 miles away.
  • 👥 58 other ZIP codes are made of exactly the same digits (01368, 01863, 03816, 03861, 06138, 06183, …). The farthest-flung twin is 03861 in Lee, NH, 1,773 miles away.
  • 🧭 Farther north than 51% of all ZIP codes, and farther west than 83%.
  • 🎯343 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 80163 and you would come out at 39.35°S, 75.01°E — 730 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 57m of daylight. Shortest: 9h 23m.
🌙 The sky over 80163 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

Business and tax activity

Business establishments18This ZIP18
Employees192This ZIP192
Annual payroll$5,798,000This ZIP$5,798,000

Land area

ZIP codes near 80163

ZIPCityDistance
80109 Castle Rock, CO 4.7 mi
80131 Louviers, CO 8.9 mi
80104 Castle Rock, CO 9.9 mi
80108 Castle Rock, CO 10.1 mi
80125 Littleton, CO 10.2 mi
80135 Sedalia, CO 10.8 mi
80425 Buffalo Creek, CO 11.3 mi
80118 Larkspur, CO 12.5 mi
80130 Littleton, CO 13.0 mi
80126 Littleton, CO 13.5 mi

Find every ZIP code within 10 miles of 80163 →

Questions about this ZIP code

Where is ZIP code 80163?

80163 is in Littleton, Colorado, in Douglas County, part of the Denver-Aurora-Centennial, CO metropolitan area. Its published point location is 39.3479, -104.9947.

What county is 80163 in?

80163 lies in Douglas County.

What area code is 80163?

Littleton uses area codes 303, 720 and 983, from NANPA's telephone records.

What time zone is 80163 in?

80163 uses America/Denver.

What ZIP codes are near 80163?

The closest are 80109 (4.7 mi), 80131 (8.9 mi), 80104 (9.9 mi), 80108 (10.1 mi) and 80125 (10.2 mi).

Is 80163 a PO Box ZIP code?

Possibly. The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

Download or cite

Cite this page

zipcodes.pro. “80163 ZIP Code — Littleton, Colorado (Douglas County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/80163

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/80163.json

Underlying data is public domain or openly licensed — sources, vintages and licences.