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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/80138

80138

ZIP 80138 is in Parker, Colorado, mostly in Douglas County; area codes 303, 720 and 983; Mountain time. Parker has 2 ZIP codes; the other is 80134.

Type
Standard
Time zone
America/Denver
County
Douglas +1 more
Population
36,895
Coordinates
39.5175, -104.6709
☼ Live from 80138 — Parker, CO

Weather right now

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Local time: —

Where 80138 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 80138
  • 🔢 Type 80138 into a pocket calculator and turn it upside down: BEIOB — not quite a word, sorry.
  • ➕ As a number, 80,138 = 2 × 17 × 2357. Its digits add up to 20, a total 2,586 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10011100100001010
  • 🏠 Its numerical neighbours: 80137 (Watkins, CO, 14 mi away) and 80150 (Englewood, CO, 19 mi away).
  • 🔄 Backwards, 80138 becomes 83108, which is not a ZIP code at all.
  • 👥 26 other ZIP codes are made of exactly the same digits (03818, 08318, 08831, 13088, 13808, 18038, …). The farthest-flung twin is 03818 in Conway, NH, 1,737 miles away.
  • 🧭 Farther north than 52% of all ZIP codes, and farther west than 82%.
  • 🎯325 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 80138 and you would come out at 39.52°S, 75.33°E — 724 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 58m of daylight. Shortest: 9h 22m.
  • 📏 At 62.0 square miles of land, 80138 is bigger than 65% of ZIP codes — room for about 47 Central Parks.
🌙 The sky over 80138 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population36,895This ZIP36,895
Households12,447This ZIP12,447
Housing units12,775This ZIP12,775
Median age40.2This ZIP40.2Colorado37.7US 38.9
Median household income$145,013This ZIP$145,013Colorado$95,470US $80,734
Median home value$723,600This ZIP$723,600Colorado$539,400US $332,700
Median gross rent$2,036This ZIP$2,036Colorado$1,761US $1,413
Bachelor's degree or higher51.1%This ZIP51.1%
Mean commute27.8 minThis ZIP27.8 min
Population density595.4 / sq miThis ZIP595.4 / sq mi

Business and tax activity

Business establishments849This ZIP849
Employees7,672This ZIP7,672
Annual payroll$390,140,000This ZIP$390,140,000
Tax returns filed16,960This ZIP16,960
Total adjusted gross income$2,292,689,000This ZIP$2,292,689,000

Land area

Land area61.97 sq miThis ZIP61.97 sq mi
Water area0.06 sq miThis ZIP0.06 sq mi

Counties 80138 spans

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

CountyShare of this ZIP
Douglas County 55.4%
Elbert County 44.6%

Other place names in 80138

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

ZIP codes near 80138

ZIPCityDistance
80016 Aurora, CO 5.9 mi
80134 Parker, CO 6.3 mi
80107 Elizabeth, CO 9.0 mi
80015 Aurora, CO 10.0 mi
80108 Castle Rock, CO 11.0 mi
80112 Englewood, CO 11.0 mi
80013 Aurora, CO 11.2 mi
80124 Lone Tree, CO 11.8 mi
80018 Aurora, CO 12.8 mi
80111 Englewood, CO 13.0 mi

Find every ZIP code within 10 miles of 80138 →

Questions about this ZIP code

Where is ZIP code 80138?

80138 is in Parker, Colorado, in Douglas County, part of the Denver-Aurora-Centennial, CO metropolitan area. Its published point location is 39.5175, -104.6709.

What county is 80138 in?

80138 spans 2 counties: Douglas County and Elbert 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 80138?

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

What time zone is 80138 in?

80138 uses America/Denver.

How many people live in 80138?

About 36,895 people live in ZIP code 80138, in 12,447 households, at 595.4 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 80138?

$145,013 a year, against $95,470 across Colorado.

What ZIP codes are near 80138?

The closest are 80016 (5.9 mi), 80134 (6.3 mi), 80107 (9 mi), 80015 (10 mi) and 80108 (11 mi).

Is 80138 a PO Box ZIP code?

80138 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “80138 ZIP Code — Parker, Colorado (Douglas County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/80138

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