ZIP code profile · 2024 county data

ZIP Code 48103

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

Data updated 2026-08-24

284
Property rate /100K (county)
54,563
Population (ZIP)
172
Violent rate /100K (county)

Is ZIP code 48103 safe? Honest data snapshot

ZIP code 48103 sits within Washtenaw County, MI, 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: 172 violent incidents and 284 property incidents per 100,000 residents in 2024, per county-level agency submissions.

ZIP 48103 is the largest ZIP in Washtenaw County by population, 54,563 residents (#2 of 14 county ZIPs), across 66.52 square miles (820/sq mi). For a full breakdown of Washtenaw County's crime categories and year-over-year trend, see the Washtenaw County crime page linked below.

ZIP 48103 has no FBI-native crime rate (postal codes are not police jurisdictions). The property-led county proxy above is from Washtenaw County agency submissions; see methodology for the ZCTA plurality map. Methodology.

ZIP 48103 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
$113,829
Median age
40.0 years
Owner-occupied homes
67%
Occupied homes
23,913

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 48103?

Within the participating-agency records for Washtenaw County, reported violent and property crime rates both sit below their U.S. benchmarks: violent crime is 51% below and property crime is 83% 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 48103. 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, 48103 is one of the most populous ZIPs (#2 of 14). Its 54,563 residents therefore represent a comparatively large share of the local population, but the county total still combines reports from places outside this ZIP.

Washtenaw County UCR book ZIP 48103 inherits

ZIP 48103 itself is about 820 people per Census sq mi across 66.5 sq mi (54,563 residents), a postal settlement fact independent of the county UCR proxy.

ZIP 48103 accounts for roughly 14.7% of the county reporting population (54,563 of 372,258).

Washtenaw County leans on larceny-theft at 40% of reported offenses (mix index 2,879). ZIP 48103 has no separate FBI offense book.

Washtenaw County 2024 vs 2023: violent counts +1% vs 2023; property counts -14% vs 2023. Year-over-year moves are county agency submissions, still not ZIP-native.

Washtenaw 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 48103

Similar county violent rate (~172/100K)

Similar Census population (~54,563)

County detail: Washtenaw County · State atlas: Michigan

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.