Onida, South Dakota.
Typical home $244,010 (+2.3% in a year).
to buy the typical home at today's mortgage rate — +$61 (+5%) since Jan 2024.
- 1 year
- Up $5,426 +2%
- $238,585$244,010 since Sep 2025
Monthly payment to buy the typical home
Home value × that month's 30-year mortgage rate, 20% down, principal and interest. This is the line households feel: prices and rates compound each other.
- Onida$1,281
- South Dakota$1,668
- United States$1,922
Typical home values in Onida, SD rose 2.3% over the past year — faster than the nation's +1.2%.
Living in Onida, Sully County, South Dakota
Onida is a city of 666 people in Sully County. Half its households earn more than $70,000 a year and half less, against $72,578 across Sully County; 5% of its people live below the poverty line. 80% of its homes are lived in by their owners and 20% are rented. Unemployment in Sully County was 1.7% in August 2026, and the county had 1.9% more jobs in 2025 than the year before. The most residents work in schools and health care, then farming.
Written by AI Claude Sonnet 5.5 wrote this on 23 October 2026 from the figures here, a list of nearby places and what it knows. It can be wrong or out of date.
What it’s like
The place. Onida is a small city and the seat of Sully County, home to a close-knit community of people who know one another. Most homes are lived in by their owners, and household incomes run a little below the county's, with few people living below the poverty line. Winters are cold, with the coldest weather in January and a good deal of snow, and summers turn properly warm by July.
Work. Many residents work in schools, hospitals and social care, and in farming, forestry and mining, with others in shops and the building trades. Across Sully County, the largest workplaces include the Agar-Blunt-Onida School District, Ringneck Energy and CHS. Unemployment is low and has held steady over the past year, and the daily commute is short.
Things to do. For time on the water, Lake Oahe is a large reservoir, and Cottonwood Lake is another lake within a longer drive. History-minded visitors can head to Fort Pierre Chouteau, an archaeological site, or to the South Dakota Cultural Heritage Center, a museum, both a longer drive away.
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- 292households
- 30%of adults have a degree
- 5%below the poverty line
- 18 mintypical commute
- 6%work from home
What residents work in
Employed residents by industry, from the Census survey. Sully County had 692 jobs in 2025, 1.9% more than the year before (Bureau of Labor Statistics).
Weather through the year
Coldest in January, with highs near 26° and lows near 7°; warmest in July, with highs near 87° and lows near 61°. About 49 inches of snow and 21 inches of rain and melted snow a year.
Average daily high and low, 1991–2020, at the Onida Northwest weather station, 4 miles away (NOAA).
Largest workplaces in Sully County
- Agar-Blunt-Onida School District 58-3School district61FTE
- Ringneck EnergyDenatured alcohol manufacturing44
- CHSGrain and field bean merchant wholesalers24
Staff on average in 2025, as each workplace reported it to OSHA with its injury records: 2 workplaces with 20 or more staff, 68 people in all across the county; Onida has two of its own. School districts come from the Common Core of Data (NCES, 2023–24); FTE marks full-time equivalent staff. Not listed: many offices and banks, which need not report to OSHA; military bases, whose staff OPM withholds; and, in about half the states, city and county governments.
Natural hazards
- Cold wavesVery high
- Winter weatherVery high
- Inland floodingVery high
- WildfireRelatively high
- HailRelatively high
- Strong windRelatively high
FEMA’s National Risk Index (December 2025) rates the risk each natural hazard poses to the people, buildings and farms in Onida’s census tracts, against the rest of the country; all of them together, relatively high. It is meant for planning, not a substitute for a local risk assessment or a flood map: FEMA’s index.
From the U.S. Census Bureau’s 2020 census and its American Community Survey (2020–2024 five-year estimates), and the Bureau of Labor Statistics. A survey, so each figure has a margin of error, and figures it is not sure of are left out. More on Sully County.
Onida home values
Zillow measures a city over its municipal boundary. Against the state and national figures, mid-tier homes, smoothed and seasonally adjusted.
- Onida$244,010
- South Dakota$317,874
- United States$366,157
When this market ran hot
Each cell is that month's year-on-year home-value growth. Read left to right, top row is the latest year — the 2021–22 band is the boom.
Zip codes with a Onida address
A different geography, not a breakdown. The figure above covers the municipality; these zips cover everywhere the Post Office calls Onida — often including townships beyond the city limits. Both come straight from Zillow, and they are not expected to average out.