ZIP code profile · 2024 county data
ZIP Code 78615
Williamson County, Texas: Census demographics for this ZIP plus the containing county's FBI UCR crime rate.
Data updated 2026-08-24
- 298
- Property rate /100K (county)
- 1,781
- Population (ZIP)
- 35
- Violent rate /100K (county)
Is ZIP code 78615 safe? Honest data snapshot
ZIP code 78615 sits within Williamson County, TX, 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: 35 violent incidents and 298 property incidents per 100,000 residents in 2024, per county-level agency submissions.
ZIP 78615 carries a Census-reported population of 1,781, ranking #16 of 19 ZIPs in Williamson County, spread across 54.51 square miles (about 33 people per square mile). For a full breakdown of Williamson County's crime categories and year-over-year trend, see the Williamson County crime page linked below.
ZIP 78615 has no FBI-native crime rate (postal codes are not police jurisdictions). The property-led county proxy above is from Williamson County agency submissions; see methodology for the ZCTA plurality map. Methodology.
ZIP 78615 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
- $73,462
- Median age
- 30.3 years
- Owner-occupied homes
- 75%
- Occupied homes
- 528
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 78615?
Within the participating-agency records for Williamson County, reported violent and property crime rates both sit below their U.S. benchmarks: violent crime is 90% 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 78615. 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.
78615 is comparatively spread out at about 33 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.
Williamson County UCR book ZIP 78615 inherits
ZIP 78615 itself is about 33 people per Census sq mi across 54.5 sq mi (1,781 residents), a postal settlement fact independent of the county UCR proxy.
ZIP 78615 is about 0.3% of the county reporting population (1,781 of 609,017), so most of the denominator and submitted incidents sit outside this postal code.
Williamson County's 2024 UCR book concentrates in larceny-theft (63% of 2,026 offenses; mix index 4,420). ZIP 78615 inherits that county mix, not a postal-native split.
Williamson County 2024 vs 2023: violent counts -3% vs 2023; property counts +13% vs 2023. Year-over-year moves are county agency submissions, still not ZIP-native.
Williamson 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 78615
Similar county violent rate (~35/100K)
- ZIP 30452, GA · 34.5/100K · Bulloch County
- ZIP 53806, WI · 34.7/100K · Grant County
- ZIP 54805, WI · 34.3/100K · Barron County
- ZIP 53001, WI · 34.7/100K · Sheboygan County
Similar Census population (~1,781)
- ZIP 58622, ND · 1,781 pop · Δ0
- ZIP 69165, NE · 1,781 pop · Δ0
- ZIP 72619, AR · 1,781 pop · Δ0
- ZIP 05462, VT · 1,782 pop · Δ1
County detail: Williamson County · State atlas: Texas
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.