Source: ACS 5-Year Estimates (2022), tables B01003 / B19013 / B25077 (ZCTA geography)
📍Quick Facts About 57031
57031 is a ZIP code located in Gayville, SD, within Yankton County. The ZIP Code Tabulation Area (ZCTA) has a population of approximately 766 residents and is classified as Rural under the USDA RUCA commuting-based system (a technical classification, not a lifestyle description). The median household income is $61,875, and the median home value is $116,900. The home price-to-income ratio is 1.9x.
📊 Data sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates, 2018–2022 (ZCTA geography). All figures are survey estimates with margins of error.
Population
Under 1,000
~766 residents
Median Income
$61,875
Household median
Home Value
$116,900
Median price
Area Type
Rural
39.4 sq mi
Location
Detailed Information
Demographics
- Population Range:
- Under 1,000
- Median Income:
- $61,875
- Classification:
- Rural
Housing Market
- Median Value:
- $116,900
- Price Range:
- $100,000 - $150,000
- Land Area:
- 39.4 sq mi
Data Quality: 100%
ExcellentUS Census Bureau ACS 5-Year Estimates, 2018–2022 • US Census Bureau
How 57031 Compares — Computed Percentiles
Each percentile is computed from our full database of U.S. ZCTAs with reported data (ACS 5-Year Estimates (2022)). A 90th-percentile value is higher than 90% of comparable ZCTAs.
| Metric | 57031 | Within SD | Within U.S. |
|---|---|---|---|
| Population | 766 | 56th percentile in SD | 27th percentile nationally |
| Median household income | $61,875 | 38th percentile in SD | 42nd percentile nationally |
| Median home value (ACS) | $116,900 | 47th percentile in SD | 29th percentile nationally |
ACS estimates carry margins of error, which are larger for small-population ZCTAs — note this ZCTA's small population (~766) means its estimates are less precise. See the Census Bureau's ACS documentation for table-level margins of error.
Zillow Data Unavailable
Zillow Home Value Index data is not available for this ZIP code. This may be due to limited transaction history or recent development in the area.
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Frequently Asked Questions about 57031
Sourced data about Gayville, SD
ZIP code 57031 is in Gayville, SD, within Yankton County.
ZIP Intelligence Report for 57031
Downloadable, print-ready analysis built only from sourced public data
What's included
- Census ACS demographics with table citations and vintage dates
- ACS housing values + Zillow ZHVI market trend with as-of dates
- State and national percentile comparisons (when statistically valid)
- Nearby ZIP comparison table with a documented selection method
- Affordability ratio (home value vs. income) with plain-language context
- Full methodology, data sources, and limitations section
Not included (not available at ZIP level in our sources)
- School quality or district ratings
- Crime statistics
- Investment return projections
- Property-specific values or appraisals
We only report what our sources support — anything missing is labeled, never estimated.
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Occasional updates on housing and demographic data for areas like 57031 — sourced, dated, and never more than a few emails a month.
Data Sources, Vintages & Limitations
- Population, income & home value: U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates, 2018–2022 (2022 vintage). Tables: B01003 (Total Population); B19013 (Median Household Income); B25077 (Median Home Value, owner-occupied). Geography: ZIP Code Tabulation Areas (ZCTAs) — ZCTA boundaries approximate postal ZIP boundaries and may not match exactly.
- Area classification ("Rural"): derived from USDA ERS Rural-Urban Commuting Area (RUCA) codes, 2010 revision (based on 2010 Census and ACS commuting data). RUCA is a commuting-pattern classification only. It does not measure — and should not be read as describing — schools, jobs, industries, traffic, amenities, safety, or lifestyle. It can be counterintuitive for small, island, or special-use ZCTAs.
- Freshness: ACS data is released annually by the Census Bureau; this profile reflects the vintage above. Record last updated in our database: November 18, 2025.
- What we do not publish: we do not have verified ZIP-level data for schools, crime/safety, commute quality, climate, or amenities, so this profile makes no claims about them. See our methodology.