ZIP code profile · 2024 county data

ZIP Code 57642

Corson County, South Dakota: Census demographics for this ZIP plus the containing county's FBI UCR crime rate.

Data updated 2026-08-24

461
Property rate /100K (county)
2,009
Population (ZIP)
128
Violent rate /100K (county)

Is ZIP code 57642 safe? Honest data snapshot

ZIP code 57642 sits within Corson County, SD. The figures below are the county's own FBI UCR numbers for 2024, the most accurate available statistic for this location, not a ZIP-specific calculation.

Corson County reported a violent-crime rate of 128 per 100,000 residents and a property-crime rate of 461 per 100,000 in 2024, drawing on county-level agency submissions.

Based on just 5 reported violent incidents across a county population of 3,902, this count is too low to support a reliable per-100K rate comparison. It may reflect a genuinely low-crime county, or it may reflect incomplete agency-level reporting to the FBI UCR Program for this county and year, small county-level counts are common in FBI Table 10 and should be treated as a data point, not a precise safety ranking.

ZIP 57642 is the largest ZIP in Corson County by population, 2,009 residents (#1 of 11 county ZIPs), across 693.28 square miles (3/sq mi). For a full breakdown of Corson County's crime categories and year-over-year trend, see the Corson County crime page linked below.

ZIP 57642 has no FBI-native crime rate (postal codes are not police jurisdictions). The property-led county proxy above is from Corson County agency submissions; see methodology for the ZCTA plurality map. Methodology.

ZIP 57642 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
$56,042
Median age
26.7 years
Owner-occupied homes
48%
Occupied homes
547

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

Corson County UCR book ZIP 57642 inherits

ZIP 57642 itself is about 3 people per Census sq mi across 693.3 sq mi (2,009 residents), a postal settlement fact independent of the county UCR proxy.

ZIP 57642's 2,009 residents are about 51.5% of the 2024 county reporting population (3,902), a large postal share of a county-wide rate.

Corson County leans on larceny-theft at 39% of reported offenses (mix index 2,930). ZIP 57642 has no separate FBI offense book.

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

Corson 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 57642

Similar Census population (~2,009)

County detail: Corson County · State atlas: South Dakota

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.