What city is ZIP code 80643?

ZIP code 80643 is in Keenesburg, CO (Weld County).

What county is ZIP code 80643 in?

ZIP code 80643 is mostly in Weld County, Colorado.

How many people live in ZIP code 80643?

About 5,119 people live in the 80643 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Checked Oct 26, 2026

ZIP Code 80643

Keenesburg, CO, Weld County

Population

5,119

Land area

216.5sq mi

People per sq mi

City

Keenesburg

ZIP 80643 and nearby ZIP codes

Full map

ZIP 80643 at a glance

ZIP 80643 (Keenesburg) is 58% less dense than Colorado as a whole.
The median household income is $97,766, close to the Colorado median.
A typical owner-occupied home is valued at $474,900 (12% below Colorado) and median rent is $1,728 a month.

Local data for ZIP 80643

Counts from official public data

Housing and community stats

ZIP 80643, American Community Survey 2020-2024

Full profile

Median household income

$97,766

Poverty rate

8.2%

Median home value

$474,900

Prices -2.5% in a year

Median rent

$1,728/mo

Homeownership

76.6%

Bachelor's or higher

15.6%

Median age

36.3

Average commute

32.3 min

Income, education and commute

Economy and federal money

Businesses, pandemic loans and political donations

Details

Business establishments

ZIP Business Patterns 2023

Employees

832

$68.5M annual payroll

PPP loans

$20.4M

120 loans

Campaign donations

$12.4K

1% D, 61% R, 2026 cycle

PPP loans in this ZIP

Environment and hazard risk

ZIP 80643, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively Moderate

Top: hail

Storm events since 1996

1,986

Countywide, mostly hail

Flood insurance policies

325

0.3% of homes, county

July high / Jan low

90° / 19°F

14.5 inches of rain a year

Hazards, floods and storm history Check a flood zone

Health statistics

Share of adults in ZIP 80643, CDC PLACES estimates

All 40 measures

Obesity

34.6%

U.S. 33.3% +1.3 pts

Diabetes

10.4%

U.S. 12.1% -1.7 pts

Smoking

15.8%

U.S. 12.8% +3.0 pts

Uninsured (18-64)

11.7%

U.S. 11.1% +0.6 pts

Frequently asked questions

What city is ZIP code 80643?: ZIP code 80643 is in Keenesburg, CO (Weld County).
What county is ZIP code 80643 in?: ZIP code 80643 is mostly in Weld County, Colorado.
How many people live in ZIP code 80643?: About 5,119 people live in the 80643 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.