ZIP code profile · 2024 county data

ZIP Code 53203

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

Data updated 2026-08-24

17
Violent rate /100K (county)
2,025
Population (ZIP)
16
Property rate /100K (county)

Is ZIP code 53203 safe? Honest data snapshot

ZIP code 53203 sits within Milwaukee County, WI, 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: 17 violent incidents and 16 property incidents per 100,000 residents in 2024, per county-level agency submissions.

With 2,025 residents, ZIP 53203 is among the smaller ZIPs in Milwaukee County (#35 of 36 by population), spread across 0.44 square miles (4,602/sq mi). For a full breakdown of Milwaukee County's crime categories and year-over-year trend, see the Milwaukee County crime page linked below.

ZIP 53203 has no FBI-native crime rate (postal codes are not police jurisdictions). The violent-led county proxy above is from Milwaukee County agency submissions; see methodology for the ZCTA plurality map. Methodology.

ZIP 53203 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
$86,895
Median age
29.6 years
Owner-occupied homes
11%
Occupied homes
1,269

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 53203?

Within the participating-agency records for Milwaukee County, reported violent and property crime rates both sit below their U.S. benchmarks: violent crime is 95% below and property crime is 99% 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 53203. 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, 53203 is among the smaller ZIPs by population (#35 of 36). 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.

Milwaukee County UCR book ZIP 53203 inherits

ZIP 53203 itself is about 4,602 people per Census sq mi across 0.4 sq mi (2,025 residents), a postal settlement fact independent of the county UCR proxy.

ZIP 53203 is about 0.2% of the county reporting population (2,025 of 939,489), so most of the denominator and submitted incidents sit outside this postal code.

Milwaukee County leans on aggravated assault at 39% of reported offenses (mix index 2,948). ZIP 53203 has no separate FBI offense book.

Milwaukee County 2024 vs 2023: violent counts -11% vs 2023; property counts +6% vs 2023. Year-over-year moves are county agency submissions, still not ZIP-native.

Milwaukee 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 53203

Similar county violent rate (~17/100K)

Similar Census population (~2,025)

County detail: Milwaukee County · State atlas: Wisconsin

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.