ZIP code profile · 2024 county data

ZIP Code 72840

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

Data updated 2026-08-24

190
Property rate /100K (county)
2,404
Population (ZIP)
179
Violent rate /100K (county)

Is ZIP code 72840 safe? Honest data snapshot

ZIP code 72840 sits within Johnson County, AR, a county whose reported crime runs below the national average (see the county-level FBI figures below, not a ZIP-specific calculation).

Johnson County's reported crime sits somewhat below the national average: 179 violent and 190 property incidents per 100,000 residents in 2024.

ZIP 72840 carries a Census-reported population of 2,404, ranking #3 of 8 ZIPs in Johnson County, spread across 46.8 square miles (about 51 people per square mile). For a full breakdown of Johnson County's crime categories and year-over-year trend, see the Johnson County crime page linked below.

ZIP 72840 has no FBI-native crime rate (postal codes are not police jurisdictions). The property-led county proxy above is from Johnson County agency submissions; see methodology for the ZCTA plurality map. Methodology.

ZIP 72840 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
$40,861
Median age
37.1 years
Owner-occupied homes
79%
Occupied homes
881

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 72840?

Within the participating-agency records for Johnson County, reported violent and property crime rates both sit below their U.S. benchmarks: violent crime is 49% below and property crime is 89% 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 72840. 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.

72840 is comparatively spread out at about 51 people per square mile. That settlement pattern may differ sharply from the county's population centers, another reason to use the county rates as regional context rather than a local estimate.

Johnson County UCR book ZIP 72840 inherits

ZIP 72840 itself is about 51 people per Census sq mi across 46.8 sq mi (2,404 residents), a postal settlement fact independent of the county UCR proxy.

ZIP 72840 accounts for roughly 9.3% of the county reporting population (2,404 of 25,749).

Johnson County leans on aggravated assault at 37% of reported offenses (mix index 2,766). ZIP 72840 has no separate FBI offense book.

Johnson County 2024 vs 2023: violent counts -29% vs 2023; property counts -43% vs 2023. Year-over-year moves are county agency submissions, still not ZIP-native.

Johnson 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 72840

Similar county violent rate (~179/100K)

Similar Census population (~2,404)

County detail: Johnson County · State atlas: Arkansas

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.