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 — STATE/CO/COUNTY/ARAPAHOE

Arapahoe County, CO ZIP codes

There are 28 ZIP codes in Arapahoe County, CO, in 5 towns, from 80010 to 80166. The largest are 80013 (Aurora), 80015 (Aurora) and 80016 (Aurora). 3 more cross into it from a neighbouring county: 80102, 80136 and 80103.

The county seat is Littleton.

ZIP codes
28
Partly in it
3 more
Towns
5
County seat
Littleton
County FIPS
08005
Population
659,844
Median household income
$101,087
Land area
798 sq mi
Area codes
303, 720

Arapahoe County ZIP codes by town

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

ZIP codes partly in Arapahoe County

These ZIP codes lie mostly in a neighbouring county but each cover a twentieth or more of Arapahoe County.

Map of Arapahoe County ZIP codes

80010800128001380014800158001680017800188004180044800468004780105801108011180112801138012080121801228013780150801518015580160801618016580166

The ZIP codes of Arapahoe County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Arapahoe County in numbers

About 659,844 people live in Arapahoe County, in 257,232 households, the 3rd most populous of Colorado's 64 counties. The median household income is $101,087 a year, 6% above the Colorado median of $95,470 (US: $80,734). The median owner-occupied home is valued at $561,200 (4% above the Colorado median), and median gross rent is $1,891 a month. The median age is 37.3; 46.5% of adults 25 and over hold a bachelor's degree or higher (45.7% across Colorado); the average commute takes 27 minutes.

Population659,844Arapahoe659,844
Households257,232Arapahoe257,232
Median age37.3Arapahoe37.3Colorado37.7US 38.9
Median household income$101,087Arapahoe$101,087Colorado$95,470US $80,734
Median home value$561,200Arapahoe$561,200Colorado$539,400US $332,700
Median gross rent$1,891Arapahoe$1,891Colorado$1,761US $1,413
Bachelor's degree or higher46.5%Arapahoe46.5%Colorado45.7%US 35.7%
Mean commute27.1 minArapahoe27.1 minColorado25.2 minUS 26.4 min
Population density827 / sq miArapahoe827 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Arapahoe County

Largest towns in Arapahoe County
TownZIP codesPopulation
Aurora 12 394,432
Littleton 7 44,710
Englewood 7 34,129
Deer Trail 1 1,275
Watkins 1 847

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Arapahoe County.

Not sure you are in Arapahoe County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Arapahoe County, with figures

ZIP codes in Arapahoe County
ZIP City Type Population Median income Median home
80010 Aurora , CO Standard 42,439 $63,579 $424,600
80012 Aurora , CO Standard 51,052 $73,000 $429,500
80013 Aurora , CO Standard 73,248 $101,191 $474,000
80014 Aurora , CO Standard 39,496 $73,210 $416,200
80015 Aurora , CO Standard 72,316 $124,702 $586,300
80016 Aurora , CO Standard 68,268 $150,492 $761,700
80017 Aurora , CO Standard 40,584 $80,524 $427,100
80018 Aurora , CO Standard 19,072 $136,895 $588,200
80041 Aurora , CO No street area — — —
80044 Aurora , CO No street area — — —
80046 Aurora , CO No street area — — —
80047 Aurora , CO No street area — — —
80105 Deer Trail , CO Standard 2,182 $79,792 $374,300
80110 Englewood , CO Standard 23,825 $85,900 $497,300
80111 Englewood , CO Standard 31,561 $135,995 $916,500
80112 Englewood , CO Standard 36,816 $108,874 $659,200
80113 Englewood , CO Standard 22,976 $96,590 $709,100
80120 Littleton , CO Standard 29,725 $94,296 $628,300
80121 Littleton , CO Standard 18,029 $142,056 $707,900
80122 Littleton , CO Standard 32,195 $128,691 $634,400
80137 Watkins , CO Standard 1,689 $134,890 $669,000
80150 Englewood , CO No street area — — —
80151 Englewood , CO No street area — — —
80155 Englewood , CO No street area — — —
80160 Littleton , CO No street area — — —
80161 Littleton , CO No street area — — —
80165 Littleton , CO No street area — — —
80166 Littleton , CO No street area — — —

Cite this page

zipcodes.pro. “Arapahoe County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/co/county/arapahoe

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