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57341
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  3. ZIP Code 57341
South Dakota (SD)Buffalo County605

ZIP Code 57341 — Gann Valley, SD

Buffalo County

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79

Population

0.0%

Poverty rate

What stands out

  • Poverty rate: 0.0% (low poverty; bottom 10% vs US ZIP codes).

Categories vs U.S.

Economy

1 of 2 metrics better than U.S. benchmarks

Per-capita income

$39K

U.S.

$45K

Housing stress

Income distribution

Share of households by income bracket (ACS).

Income distribution
Income bracketShare of households
< $50k14.8%
$50–100k40.7%
$100–200k18.5%
$200k+25.9%
< $50k
14.8%
$50–100k
40.7%
$100–200k
18.5%
$200k+
25.9%

Housing tenure

Owner-occupied vs renter-occupied housing (ACS).

Housing tenure
TenurePercent
Owners81.5%
Renters18.5%
81.5%
Owners
Owners
81.5%
Renters
18.5%

Health

1 of 6 available metrics better than U.S.

CDC PLACES modeled ZCTA-level estimates (adult prevalence).

Obesity

42.7%

U.S.

33.3%

Diabetes

16.8%

U.S.

12.0%

Current smoking

22.9%

U.S.

13.1%

Connectivity

3 of 3 metrics better than U.S.

100+ Mbps coverage

97.2%

U.S.

89.6%

Gigabit ready

97.2%

U.S.

46.1%

5G available

85.8%

U.S.

77.4%

Learning

Education metrics come from ACS 5-year estimates for ZIP Code Tabulation Areas (ZCTAs).

Bachelor's degree+ (age 25+)

52.3%

U.S.

35.7%

A high share of adults with a bachelor's degree or higher often correlates with higher-paying jobs and knowledge-economy industries.

ZIP-level estimates can have higher margins of error than county/state totals; treat small differences as noise.

School districts

Wessington Springs School District 36-2

Map

ZIP 57341

Gann Valley, SD

Population

79

Area

248.0 sq mi

Density

0.3/sq mi

Neighbors

573255735557362573705737157382

National Percentile Rankings

How this ZIP compares to other ZIP codes nationwide.

More Details

Census Tracts

2 tracts overlap this ZIP. Hover over segments to explore.

96%

Tract 9402

96.2%

Tract 9731

3.8%

Total tracts: 2Coverage: 100.0%

Congressional District Overlap

District Coverage

ZIP codes can span multiple congressional districts. Overlap percentages are approximate by land area and should be treated as geographic coverage, not address-level assignment.

100%

SD-AL

100%

Districts: 1Coverage: 100.0%

Data freshness

ACS 5-Year
2020–2024
CDC PLACES
2025
Broadband
2024-06-arcgis
Mobile
2025-11-24
Page Updated
2026-04-26

Release schedule and upstream dates: Sources.

Data sources

US Census Bureau (ACS 5-year)HUD USPS ZIP crosswalkUS Census TIGER/Line (geometry inputs)US Census TIGER/Line (school districts)US Census Bureau (ZCTA-to-tract relationship, 2020)US Census Bureau (2020 ZCTA-to-congressional-district relationship file, CD119)CDC PLACES (ZCTA)FCC Broadband Data Collection (fixed broadband)FCC (Mobile Broadband Data Collection)

Derived statistics

  • ZIP pages use Census ZIP Code Tabulation Areas (ZCTAs), not USPS delivery routes.
  • Population density is computed as population ÷ land area.
  • Overlap percentages (tracts and districts) are derived from map geometry and are approximate.

Data accuracy & methodology

ZIP pages combine 2020–2024 ACS 5-year ZCTA estimates with other public datasets when available (see Sources). Connectivity metrics use FCC coverage data, not ACS. ZIP-level estimates can have higher margins of error than county/state totals; treat small differences as statistical noise rather than precise changes.

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