ZIP code profile · 2024 county data

ZIP Code 61240

Rock Island County, Illinois: Census demographics for this ZIP plus the containing county's FBI UCR crime rate.

Data updated 2026-08-24

221
Property rate /100K (county)
5,880
Population (ZIP)
28
Violent rate /100K (county)

Is ZIP code 61240 safe? Honest data snapshot

ZIP code 61240 sits within Rock Island County, IL, 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: 28 violent incidents and 221 property incidents per 100,000 residents in 2024, per county-level agency submissions.

ZIP 61240 carries a Census-reported population of 5,880, ranking #6 of 17 ZIPs in Rock Island County, spread across 36.42 square miles (about 161 people per square mile). For a full breakdown of Rock Island County's crime categories and year-over-year trend, see the Rock Island County crime page linked below.

ZIP 61240 has no FBI-native crime rate (postal codes are not police jurisdictions). The property-led county proxy above is from Rock Island County agency submissions; see methodology for the ZCTA plurality map. Methodology.

ZIP 61240 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
$100,625
Median age
48.7 years
Owner-occupied homes
92%
Occupied homes
2,340

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 61240?

Within the participating-agency records for Rock Island County, reported violent and property crime rates both sit below their U.S. benchmarks: violent crime is 92% 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 61240. 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.

61240 is comparatively spread out at about 161 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.

Rock Island County UCR book ZIP 61240 inherits

ZIP 61240 itself is about 161 people per Census sq mi across 36.4 sq mi (5,880 residents), a postal settlement fact independent of the county UCR proxy.

ZIP 61240 accounts for roughly 4.1% of the county reporting population (5,880 of 144,672).

Rock Island County leans on burglary at 46% of reported offenses (mix index 3,367). ZIP 61240 has no separate FBI offense book.

Rock Island County 2024 vs 2023: violent counts -15% vs 2023; property counts +40% vs 2023. Year-over-year moves are county agency submissions, still not ZIP-native.

Rock Island 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 61240

Similar county violent rate (~28/100K)

Similar Census population (~5,880)

County detail: Rock Island County · State atlas: Illinois

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.