ZIP code profile · 2024 county data

ZIP Code 80631

Weld County, Colorado: Census demographics for this ZIP plus the containing county's FBI UCR crime rate.

Data updated 2026-08-24

224
Property rate /100K (county)
54,346
Population (ZIP)
47
Violent rate /100K (county)

Is ZIP code 80631 safe? Honest data snapshot

ZIP code 80631 sits within Weld County, CO, a county whose reported crime runs below the national average (see the county-level FBI figures below, not a ZIP-specific calculation).

Reported crime here runs well below the national average: 47 violent incidents and 224 property incidents per 100,000 residents in 2024, per county-level agency submissions.

ZIP 80631 is the largest ZIP in Weld County by population, 54,346 residents (#3 of 35 county ZIPs), across 103.59 square miles (525/sq mi). For a full breakdown of Weld County's crime categories and year-over-year trend, see the Weld County crime page linked below.

ZIP 80631 has no FBI-native crime rate (postal codes are not police jurisdictions). The property-led county proxy above is from Weld County agency submissions; see methodology for the ZCTA plurality map. Methodology.

ZIP 80631 Census context

These are ZIP/ZCTA demographic estimates, separate from the county-level FBI proxy above. They describe the local settlement, not a crime rate.

Median household income
$48,189
Median age
28.1 years
Owner-occupied homes
47%
Occupied homes
17,603

Source: U.S. Census Bureau, ACS 2022 5-year ZCTA estimates (income, age, and occupied housing tenure).

How useful is the county proxy for ZIP 80631?

Within the participating-agency records for Weld County, reported violent and property crime rates both sit below their U.S. benchmarks: violent crime is 87% below and property crime is 87% below. The two submitted measures point in the same direction, but they do not establish complete county coverage or turn the result into a ZIP-level rating for 80631. Both comparisons use the same 2024 county reporting population and FBI-submitted counts, so the two directions are internally comparable for this release, not evidence about a different year.

Within the county, 80631 is one of the most populous ZIPs (#3 of 35). Its 54,346 residents therefore represent a comparatively large share of the local population, but the county total still combines reports from places outside this ZIP.

Weld County UCR book ZIP 80631 inherits

ZIP 80631 itself is about 525 people per Census sq mi across 103.6 sq mi (54,346 residents), a postal settlement fact independent of the county UCR proxy.

ZIP 80631's 54,346 residents are about 16.5% of the 2024 county reporting population (328,981), a large postal share of a county-wide rate.

Weld County leans on larceny-theft at 48% of reported offenses (mix index 3,144). ZIP 80631 has no separate FBI offense book.

Weld County 2024 vs 2021: violent counts -3% vs 2021; property counts -8% vs 2021. Year-over-year moves are county agency submissions, still not ZIP-native.

Weld County offense mix (2024)

Mix index is HHI × 10,000 on county offense-type shares. Distinct from the per-100K rates in the hero; still county-agency data, not a ZIP-native FBI table.

Nationwide peers for ZIP 80631

Similar county violent rate (~47/100K)

Similar Census population (~54,346)

County detail: Weld County · State atlas: Colorado

Sources: U.S. Census Bureau (ZIP population, land area, 2020 ZCTA-to-county relationship file, ACS 5-year estimates) and FBI Uniform Crime Reporting (UCR) Program, Crime in the United States (CIUS) Table 10 (county-level crime, attributed via ZIP-to-county crosswalk).

Verify with Census.gov Geography and FBI.gov UCR.

Read our methodology , how this data is sourced, computed, and verified.

Every figure on PlainCrime is rendered directly from FBI Uniform Crime Reporting (UCR) source data, no number is typed in by an editor. This page combines Census ZIP-level figures with a ZIP-to-county crosswalk to attribute FBI UCR crime data honestly, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.