ZIP code profile · 2024 county data

ZIP Code 66603

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

Data updated 2026-09-05

266
Property rate /100K (county)
1,338
Population (ZIP)
58
Violent rate /100K (county)

Is ZIP code 66603 safe? Honest data snapshot

ZIP code 66603 sits within Shawnee County, KS, 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: 58 violent incidents and 266 property incidents per 100,000 residents in 2024, per county-level agency submissions.

With 1,338 residents, ZIP 66603 is among the smaller ZIPs in Shawnee County (#21 of 24 by population), spread across 0.89 square miles (1,503/sq mi). For a full breakdown of Shawnee County's crime categories and year-over-year trend, see the Shawnee County crime page linked below.

ZIP 66603 has no FBI-native crime rate (postal codes are not police jurisdictions). The property-led county proxy above is from Shawnee County agency submissions; see methodology for the ZCTA plurality map. Methodology.

ZIP 66603 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
$37,663
Median age
28.7 years
Owner-occupied homes
27%
Occupied homes
652
Median home value
$91,500
Bachelor's degree or higher
17.7%
Poverty rate
26.9%
Unemployment rate
3.6%

ZIP 66603's median home value of $91,500 sits higher than 23% of the 501 KS ZIPs with a reported value, roughly mid-range for the state.

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

How useful is the county proxy for ZIP 66603?

Within the participating-agency records for Shawnee County, reported violent and property crime rates both sit below their U.S. benchmarks: violent crime is 84% below and property crime is 84% 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 66603. 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, 66603 is among the smaller ZIPs by population (#21 of 24). County-wide counts are especially coarse context for a smaller postal area because most of the denominator and reported incidents may sit elsewhere in the county.

Shawnee County UCR book ZIP 66603 inherits

ZIP 66603 itself is about 1,503 people per Census sq mi across 0.9 sq mi (1,338 residents), a postal settlement fact independent of the county UCR proxy.

ZIP 66603 is about 0.7% of the county reporting population (1,338 of 178,909), so most of the denominator and submitted incidents sit outside this postal code.

Shawnee County leans on larceny-theft at 56% of reported offenses (mix index 3,779). ZIP 66603 has no separate FBI offense book.

Shawnee County 2024 vs 2023: violent counts -19% vs 2023; property counts -13% vs 2023. Year-over-year moves are county agency submissions, still not ZIP-native.

Shawnee 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 66603

Similar county violent rate (~58/100K)

Similar Census population (~1,338)

County detail: Shawnee 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.