ZIP code profile · 2024 county data
ZIP Code 84721
Iron County, Utah: Census demographics for this ZIP plus the containing county's FBI UCR crime rate.
Data updated 2026-08-24
- 136
- Property rate /100K (county)
- 28,812
- Population (ZIP)
- 42
- Violent rate /100K (county)
Is ZIP code 84721 safe? Honest data snapshot
ZIP code 84721 sits within Iron County, UT. The figures below are the county's own FBI UCR numbers for 2024, the most accurate available statistic for this location, not a ZIP-specific calculation.
Iron County reported a violent-crime rate of 42 per 100,000 residents and a property-crime rate of 136 per 100,000 in 2024, drawing on county-level agency submissions.
Based on just 24 reported violent incidents across a county population of 57,289, this count is too low to support a reliable per-100K rate comparison. It may reflect a genuinely low-crime county, or it may reflect incomplete agency-level reporting to the FBI UCR Program for this county and year, small county-level counts are common in FBI Table 10 and should be treated as a data point, not a precise safety ranking.
ZIP 84721 is the largest ZIP in Iron County by population, 28,812 residents (#1 of 10 county ZIPs), across 186.91 square miles (154/sq mi). For a full breakdown of Iron County's crime categories and year-over-year trend, see the Iron County crime page linked below.
ZIP 84721 has no FBI-native crime rate (postal codes are not police jurisdictions). The property-led county proxy above is from Iron County agency submissions; see methodology for the ZCTA plurality map. Methodology.
ZIP 84721 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
- $71,206
- Median age
- 28.4 years
- Owner-occupied homes
- 69%
- Occupied homes
- 8,528
Source: U.S. Census Bureau, ACS 2022 5-year ZCTA estimates (income, age, and occupied housing tenure).
Iron County UCR book ZIP 84721 inherits
ZIP 84721 itself is about 154 people per Census sq mi across 186.9 sq mi (28,812 residents), a postal settlement fact independent of the county UCR proxy.
ZIP 84721's 28,812 residents are about 50.3% of the 2024 county reporting population (57,289), a large postal share of a county-wide rate.
Iron County leans on larceny-theft at 41% of reported offenses (mix index 2,716). ZIP 84721 has no separate FBI offense book.
Iron County 2024 vs 2023: property counts -49% vs 2023. Year-over-year moves are county agency submissions, still not ZIP-native.
Iron 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 84721
Similar county violent rate (~42/100K)
- ZIP 60450, IL · 41.9/100K · Grundy County
- ZIP 51250, IA · 41.8/100K · Sioux County
- ZIP 04654, ME · 41.8/100K · Washington County
- ZIP 79360, TX · 41.7/100K · Gaines County
Similar Census population (~28,812)
- ZIP 45042, OH · 28,812 pop · Δ0
- ZIP 55128, MN · 28,811 pop · Δ1
- ZIP 58554, ND · 28,814 pop · Δ2
- ZIP 62703, IL · 28,809 pop · Δ3
County detail: Iron County · State atlas: Utah
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.