ZIP code profile · 2024 county data

ZIP Code 57703

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

Data updated 2026-08-24

221
Property rate /100K (county)
16,951
Population (ZIP)
130
Violent rate /100K (county)

Is ZIP code 57703 safe? Honest data snapshot

ZIP code 57703 sits within Pennington County, SD, 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: 130 violent incidents and 221 property incidents per 100,000 residents in 2024, per county-level agency submissions.

ZIP 57703 carries a Census-reported population of 16,951, ranking #3 of 9 ZIPs in Pennington County, spread across 129.78 square miles (about 131 people per square mile). For a full breakdown of Pennington County's crime categories and year-over-year trend, see the Pennington County crime page linked below.

ZIP 57703 has no FBI-native crime rate (postal codes are not police jurisdictions). The property-led county proxy above is from Pennington County agency submissions; see methodology for the ZCTA plurality map. Methodology.

ZIP 57703 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
$76,363
Median age
38.0 years
Owner-occupied homes
84%
Occupied homes
6,567

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 57703?

Within the participating-agency records for Pennington County, reported violent and property crime rates both sit below their U.S. benchmarks: violent crime is 63% below and property crime is 87% 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 57703. 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.

57703 is comparatively spread out at about 131 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.

Pennington County UCR book ZIP 57703 inherits

ZIP 57703 itself is about 131 people per Census sq mi across 129.8 sq mi (16,951 residents), a postal settlement fact independent of the county UCR proxy.

ZIP 57703's 16,951 residents are about 15.5% of the 2024 county reporting population (109,222), a large postal share of a county-wide rate.

Pennington County leans on larceny-theft at 43% of reported offenses (mix index 2,718). ZIP 57703 has no separate FBI offense book.

Pennington County 2024 vs 2023: violent counts +22% vs 2023; property counts -26% vs 2023. Year-over-year moves are county agency submissions, still not ZIP-native.

Pennington 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 57703

Similar county violent rate (~130/100K)

Similar Census population (~16,951)

County detail: Pennington 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.