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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/80108

80108

ZIP 80108 is in Castle Rock, Colorado, in Douglas County; Mountain time. Castle Rock has 3 ZIP codes; the others are 80104 and 80109.

Type
Standard
Time zone
America/Denver
County
Douglas
Population
36,730
Coordinates
39.4444, -104.8532
☼ Live from 80108 — Castle Rock, CO

Weather right now

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NEXRAD radar
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Local time: —

Where 80108 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 80108
  • 🔢 Type 80108 into a pocket calculator and turn it upside down: BOIOB — not quite a word, sorry.
  • ⇆80108 reads the same backwards. It is one of only 412 palindromic ZIP codes.
  • ➕ As a number, 80,108 = 2 × 2 × 7 × 2861. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10011100011101100
  • 🏠 Its numerical neighbours: 80107 (Elizabeth, CO, 15 mi away) and 80109 (Castle Rock, CO, 6 mi away).
  • 👥 13 other ZIP codes are made of exactly the same digits (01088, 01880, 08018, 08081, 08108, 08801, …). The farthest-flung twin is 01880 in Wakefield, MA, 1,763 miles away.
  • 🧭 Farther north than 52% of all ZIP codes, and farther west than 82%.
  • 🎯335 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 80108 and you would come out at 39.44°S, 75.15°E — 726 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.
  • 📏 At 35.3 square miles of land, 80108 is bigger than 50% of ZIP codes — room for about 27 Central Parks.
🌙 The sky over 80108 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population36,730This ZIP36,730
Households12,994This ZIP12,994
Housing units13,593This ZIP13,593
Median age40.5This ZIP40.5Colorado37.7US 38.9
Median household income$181,049This ZIP$181,049Colorado$95,470US $80,734
Median home value$881,700This ZIP$881,700Colorado$539,400US $332,700
Median gross rent$2,044This ZIP$2,044Colorado$1,761US $1,413
Bachelor's degree or higher65.5%This ZIP65.5%
Mean commute27.9 minThis ZIP27.9 min
Population density1,040.8 / sq miThis ZIP1,040.8 / sq mi

Business and tax activity

Business establishments904This ZIP904
Employees7,815This ZIP7,815
Annual payroll$376,134,000This ZIP$376,134,000
Tax returns filed17,910This ZIP17,910
Total adjusted gross income$3,799,009,000This ZIP$3,799,009,000

Land area

Land area35.29 sq miThis ZIP35.29 sq mi
Water area0.00 sq mi

Other place names in 80108

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

ZIP codes near 80108

ZIPCityDistance
80134 Parker, CO 4.7 mi
80109 Castle Rock, CO 5.9 mi
80124 Lone Tree, CO 6.4 mi
80130 Littleton, CO 6.9 mi
80131 Louviers, CO 8.6 mi
80112 Englewood, CO 8.9 mi
80126 Littleton, CO 8.9 mi
80104 Castle Rock, CO 10.0 mi
80163 Littleton, CO 10.1 mi
80122 Littleton, CO 10.8 mi

Find every ZIP code within 10 miles of 80108 →

Questions about this ZIP code

Where is ZIP code 80108?

80108 is in Castle Rock, Colorado, in Douglas County, part of the Denver-Aurora-Centennial, CO metropolitan area. Its published point location is 39.4444, -104.8532.

What county is 80108 in?

80108 lies in Douglas County.

What time zone is 80108 in?

80108 uses America/Denver.

How many people live in 80108?

About 36,730 people live in ZIP code 80108, in 12,994 households, at 1,040.8 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 80108?

$181,049 a year, against $95,470 across Colorado.

What ZIP codes are near 80108?

The closest are 80134 (4.7 mi), 80109 (5.9 mi), 80124 (6.4 mi), 80130 (6.9 mi) and 80131 (8.6 mi).

Is 80108 a PO Box ZIP code?

80108 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “80108 ZIP Code — Castle Rock, Colorado (Douglas County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/80108

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