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 — CITY/CO/KEENESBURG

Keenesburg ZIP code, Colorado

The ZIP code for Keenesburg, CO is 80643, and its area codes are 720, 303 and 983.

USPS city name
1 ZIP code
Overlapping the city
1 more
Population
2,347
Area codes
720, 303, 983

Mail addressed to Keenesburg uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.

Keenesburg in numbers

About 2,347 people live in Keenesburg, in 789 households. The median household income is $83,950 a year, 12% below the Colorado median of $95,470 (US: $80,734). The median owner-occupied home is valued at $432,900 (20% below the Colorado median), and median gross rent is $1,474 a month. The median age is 30.7; 9.8% of adults 25 and over hold a bachelor's degree or higher (45.7% across Colorado); the average commute takes 36 minutes.

Population2,347Keenesburg2,347
Households789Keenesburg789
Median age30.7Keenesburg30.7Colorado37.7US 38.9
Median household income$83,950Keenesburg$83,950Colorado$95,470US $80,734
Median home value$432,900Keenesburg$432,900Colorado$539,400US $332,700
Median gross rent$1,474Keenesburg$1,474Colorado$1,761US $1,413
Bachelor's degree or higher9.8%Keenesburg9.8%Colorado45.7%US 35.7%
Mean commute36.1 minKeenesburg36.1 minColorado25.2 minUS 26.4 min
Population density251 / sq miKeenesburg251 / sq mi

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

ZIP codes addressed as Keenesburg

ZIP codes with the USPS city name Keenesburg
ZIP City Type Population Median income Median home
80643 Keenesburg , CO Standard 5,119 $97,766 $474,900

Other ZIP codes overlapping Keenesburg

These ZIP codes cover part of Keenesburg but are addressed as somewhere else.

ZIP codes overlapping Keenesburg
ZIP City Type Population Median income Median home
80642 Hudson , CO Standard 4,466 $105,225 $620,000

Map of Keenesburg ZIP codes

80643

The ZIP codes of Keenesburg, CO, 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.

Towns near Keenesburg

The nearest larger towns are Lochbuie (8,609 people, 13 mi), Fort Lupton (8,897 people, 14 mi) and Platteville (2,928 people, 15 mi).

Towns near Keenesburg
TownPopulationDistance
Lochbuie 8,609 13.3 mi
Fort Lupton 8,897 13.6 mi
Platteville 2,928 15.0 mi
La Salle 3,061 15.3 mi
Evans 22,396 16.6 mi
Brighton 42,059 17.9 mi
Milliken 8,871 18.9 mi
Todd Creek 5,379 20.2 mi
Firestone 18,049 20.3 mi
Johnstown 18,883 21.1 mi
Greeley 110,806 21.2 mi
Dacono 6,530 21.2 mi
Frederick 16,651 22.0 mi
Commerce City 66,445 22.5 mi

More nearby: every ZIP code in Weld County · Colorado ZIP codes

Cite this page

zipcodes.pro. “Keenesburg, CO ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/co/keenesburg

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