ZIP code profile · 2024 county data

ZIP Code 66506

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

Data updated 2026-08-24

1,399
Property rate /100K (county)
3,179
Population (ZIP)
275
Violent rate /100K (county)

Is ZIP code 66506 safe? Honest data snapshot

ZIP code 66506 sits within Riley County, KS. 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.

Riley County reported a violent-crime rate of 275 per 100,000 residents and a property-crime rate of 1,399 per 100,000 in 2024, drawing on county-level agency submissions.

ZIP 66506 carries a Census-reported population of 3,179, ranking #4 of 8 ZIPs in Riley County, spread across 0.71 square miles (about 4,477 people per square mile). For a full breakdown of Riley County's crime categories and year-over-year trend, see the Riley County crime page linked below.

ZIP 66506 has no FBI-native crime rate (postal codes are not police jurisdictions). The property-led county proxy above is from Riley County agency submissions; see methodology for the ZCTA plurality map. Methodology.

ZIP 66506 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 age
19.5 years
Owner-occupied homes
0%
Occupied homes
2

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 66506?

Within the participating-agency records for Riley County, reported violent and property crime rates both sit below their U.S. benchmarks: violent crime is 22% below and property crime is 18% 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 66506. 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.

66506 is a densely settled part of the county at about 4,477 people per square mile. Density is not a crime predictor on its own; it only shows why a county-wide average can conceal a very different local setting inside this ZIP.

Riley County UCR book ZIP 66506 inherits

ZIP 66506 itself is about 4,477 people per Census sq mi across 0.7 sq mi (3,179 residents), a postal settlement fact independent of the county UCR proxy.

ZIP 66506 accounts for roughly 4.4% of the county reporting population (3,179 of 71,959).

Riley County's 2024 UCR book concentrates in larceny-theft (68% of 1,205 offenses; mix index 4,908). ZIP 66506 inherits that county mix, not a postal-native split.

Riley 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 66506

Similar county violent rate (~275/100K)

Similar Census population (~3,179)

County detail: Riley County · State atlas: Kansas

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.