ZIP code profile · 2024 county data
ZIP Code 57429
Spink County, South Dakota: Census demographics for this ZIP plus the containing county's FBI UCR crime rate.
Data updated 2026-08-24
- 173
- Property rate /100K (county)
- 71
- Population (ZIP)
- 126
- Violent rate /100K (county)
Is ZIP code 57429 safe? Honest data snapshot
ZIP code 57429 sits within Spink 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.
Spink County reported a violent-crime rate of 126 per 100,000 residents and a property-crime rate of 173 per 100,000 in 2024, drawing on county-level agency submissions.
Based on just 8 reported violent incidents across a county population of 6,361, 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.
With 71 residents, ZIP 57429 is among the smaller ZIPs in Spink County (#10 of 10 by population), spread across 14.07 square miles (5/sq mi). For a full breakdown of Spink County's crime categories and year-over-year trend, see the Spink County crime page linked below.
ZIP 57429 has no FBI-native crime rate (postal codes are not police jurisdictions). The property-led county proxy above is from Spink County agency submissions; see methodology for the ZCTA plurality map. Methodology.
ZIP 57429 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
- $63,750
- Median age
- 58.5 years
- Owner-occupied homes
- 91%
- Occupied homes
- 47
Source: U.S. Census Bureau, ACS 2022 5-year ZCTA estimates (income, age, and occupied housing tenure).
Spink County UCR book ZIP 57429 inherits
ZIP 57429 itself is about 5 people per Census sq mi across 14.1 sq mi (71 residents), a postal settlement fact independent of the county UCR proxy.
ZIP 57429 is about 1.1% of the county reporting population (71 of 6,361), so most of the denominator and submitted incidents sit outside this postal code.
Spink County's 2024 UCR book concentrates in larceny-theft (53% of 19 offenses; mix index 4,183). ZIP 57429 inherits that county mix, not a postal-native split.
Spink County 2024 vs 2023: property counts -27% vs 2023. Year-over-year moves are county agency submissions, still not ZIP-native.
Spink 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.
Read with ZIP 57429
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.