Gayville is a town in Yankton County, South Dakota, home to about 519 people across 0.2 square miles. Its ZIP code is 57031.
Homes sold for a median of $154 per square foot in the three months ending August 2026, a seller’s market.
Each card is that ZIP code’s whole market, including any part outside Gayville. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Gayville’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Eppley Airfield (OMA)128 miles away |
|---|---|
| Closer regional airport | Sioux Gateway Airport / Brigadier General Bud Day Field (SUX)53 miles away |
| Nearest city of 250,000+ | Omaha, NE126 miles away |
| Nearest city of 1 million+ | Chicago, IL490 miles away |
Straight-line distances from the center of Gayville; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Gayville had 382 residents in the 2020 census, down 9% since 2000.
It’s the 149th largest of 440 towns in South Dakota by population.
Yankton County grew from 12,649 residents in 1900 to 23,310 in 2020.
Yankton County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 87°F in summer, and winter lows average 10°F. About 28.9 inches of rain and melted snow fall in a typical year, with about 38 inches of snow.
Source: NOAA 1991–2020 climate normals, Yankton 2 E, SD weather station (9 miles away).
11,776 jobs at 707 businesses in Yankton County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Nearest hospitals
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances.
Public schools here are run by Gayville-Volin School District 63-1. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Gayville-Volin Elementary - 02Gayville | Pre-K–5 | 136 | Public | 0.8 mi |
| Gayville-Volin Middle School - 03Gayville | 6–8 | 50 | Public | 0.8 mi |
| Gayville-Volin High School - 01Gayville | 9–12 | 95 | Public | 0.8 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.