ZIP code profile · 2024 county data

ZIP Code 70057

St. Charles County, Louisiana: Census demographics for this ZIP plus the containing county's FBI UCR crime rate.

Data updated 2026-08-24

1,005
Property rate /100K (county)
4,564
Population (ZIP)
234
Violent rate /100K (county)

Is ZIP code 70057 safe? Honest data snapshot

ZIP code 70057 sits within St. Charles County, LA, a county whose reported crime runs below the national average (see the county-level FBI figures below, not a ZIP-specific calculation).

St. Charles County's reported crime sits somewhat below the national average: 234 violent and 1,005 property incidents per 100,000 residents in 2024.

ZIP 70057 carries a Census-reported population of 4,564, ranking #4 of 9 ZIPs in St. Charles County, spread across 44.52 square miles (about 103 people per square mile). For a full breakdown of St. Charles County's crime categories and year-over-year trend, see the St. Charles County crime page linked below.

ZIP 70057 has no FBI-native crime rate (postal codes are not police jurisdictions). The property-led county proxy above is from St. Charles County agency submissions; see methodology for the ZCTA plurality map. Methodology.

ZIP 70057 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
$58,965
Median age
43.1 years
Owner-occupied homes
88%
Occupied homes
1,399

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 70057?

Within the participating-agency records for St. Charles County, reported violent and property crime rates both sit below their U.S. benchmarks: violent crime is 34% below and property crime is 41% 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 70057. 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.

70057 is comparatively spread out at about 103 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.

St. Charles County UCR book ZIP 70057 inherits

ZIP 70057 itself is about 103 people per Census sq mi across 44.5 sq mi (4,564 residents), a postal settlement fact independent of the county UCR proxy.

ZIP 70057 accounts for roughly 8.7% of the county reporting population (4,564 of 52,549).

St. Charles County's 2024 UCR book concentrates in larceny-theft (60% of 651 offenses; mix index 4,088). ZIP 70057 inherits that county mix, not a postal-native split.

St. Charles County 2024 vs 2023: violent counts +16% vs 2023; property counts -3% vs 2023. Year-over-year moves are county agency submissions, still not ZIP-native.

St. Charles 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 70057

Similar county violent rate (~234/100K)

Similar Census population (~4,564)

County detail: St. Charles County · State atlas: Louisiana

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.