Union County, South Dakota Housing Market Prices
Union County Home Prices and Rent at a Glance
The median home price (often called the average home price), rent costs, affordability metrics, and housing stock characteristics for this housing market.
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Median home price 103% above the South Dakota median More expensive than 78% of counties in South Dakota$187,500
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Median rent 13% above the South Dakota median Among the 5 most expensive counties in South Dakota$1,069
Median Home Price Map: Nearby Counties
Housing Market Overview
| Metric | Union County | South Dakota Avg | US Average |
|---|---|---|---|
| Median Home Price | $187,500 | $92,142 | $248,835 |
| Price Trend (Annual %) | 5.1% | -1.1% | 7.5% |
| Median Gross Rent | $1,069 | $946 | $1,407 |
| Rent Trend (Annual %) | 4.0% | 4.3% | 5.1% |
| Household Income Trend (Annual %) | — | — | — |
The median home price in Union County is about 103% higher than in South Dakota. Rent is about 13% higher than the South Dakota average.
Median Home and Rent Price Trends
Median Home Prices, 2015-2024
Median Rent Prices, 2015-2024
Both home prices and rent are rising in Union County, up about 5.1% and 4.0% a year respectively. Home prices are changing faster.
Median rent in Union County rose about 38.5% between 2015 and 2024, from $772 to $1,069. Over the same span, rent in South Dakota rose about 44.4%.
Affordability
On average, housing unit costs 2.1 yearly household incomes in Union County.
Buying the median-priced home in Union County costs roughly 14.6 years of rent at the median monthly rate. That is a relatively low price-to-rent ratio, which tends to favor buying over renting in Union County. The price-to-rent ratio in South Dakota is about 8.1.
| Metric | Union County | South Dakota Avg | US Average |
|---|---|---|---|
| Median Home Price | $187,500 | $92,142 | $248,835 |
| Median Household Income | $89,958 | $75,087 | $80,455 |
| Price-to-Income Ratio | 2.1 | 1.2 | 3.1 |
Home Prices vs Income Over Time
Between 2015 and 2024, the median home price in Union County rose about 71.2%, while median household income rose about 50.4% between 2009 and 2025 — the home price grew faster than income.
Income Growth vs Housing Cost Growth (Year-over-Year %)
Compare income and housing cost trends.
Occupancy & Tenure
| Metric | Union County | South Dakota Avg | US Average |
|---|---|---|---|
| Homeownership Rate | 70.4% | 61.3% | 58.5% |
| Rental Rate | 25.9% | 28.1% | 31.2% |
| Vacancy Rate | 3.7% | 10.5% | 10.2% |
| Median Tenure (years) | 15.0 | 15.0 | 15.0 |
| Median Year Moved In | 2011 | 2011 | 2011 |
Union County has a homeownership rate of 70.4%, higher than the South Dakota average of 61.3%. Its housing vacancy rate is 3.7%, compared with 10.5% in South Dakota.
Housing Stock
| Metric | Union County | South Dakota Avg | US Average |
|---|---|---|---|
| Average Household Size | 2.32 people | 2.40 people | 2.53 people |
| Median Structure Built Year | 1966 | 1980 | 1978 |
| Median Number of Rooms | 6.5 | 5.9 | 5.5 |
The typical housing unit in Union County was built around 1966. On average, 2.3 people live in a home with about 6.5 rooms, staying for about 15.0 years on average.
Union County, SD Housing Compared With Nearby Counties
Union County, SD is the 3rd largest of the 4 counties compared here, 17,081 residents against a local median of 25,747. Where Union County, SD breaks from the counties next to it is median rent, sitting 17% above the local median of $910 at $1,069.
The counties themselves spread $491 on median rent, so Union County, SD sits at one end of an already wide local range rather than apart from it. Union County, SD has the 2nd highest median rent of the 4 areas compared here.
| Area | Population | Median home price | Median rent | Homeownership |
|---|---|---|---|---|
| Union County, SD | 17,081 | $187,500 #2/4 | $1,069 #2/4 | 73.1% #2/4 |
| Clay County, SD | 15,219 | $178,750 | $769 | 50.8% |
| Lincoln County, SD | 70,639 | $337,722 | $1,260 | 71.2% |
| Plymouth County, IA | 25,747 | $28,068 | $910 | 73.6% |
Frequently Asked Questions
Common questions about the housing market in Union County, South Dakota.
What is the median home price in Union County, South Dakota?
The median home price in Union County, South Dakota is $187,500, higher than the South Dakota average of $92,142.
What is the average home price in Union County, South Dakota?
The typical home price in Union County, South Dakota, reported as the median sale price, is $187,500. The median is used instead of a mathematical average because it is not skewed by a small number of very expensive or very cheap homes, so it better reflects what a typical buyer pays.
What is the median rent in Union County, South Dakota?
The median gross rent in Union County, South Dakota is $1,069 per month, higher than the South Dakota average of $946.
What was the median gross rent in Union County in 2020?
In 2020, the median gross rent in Union County, South Dakota was $854 per month.
What is the price-to-rent ratio in Union County, South Dakota?
The price-to-rent ratio in Union County, South Dakota is about 14.6, meaning it would take roughly 14.6 years of rent payments at the median rent to equal the median home price. That is a relatively low price-to-rent ratio, which tends to favor buying over renting in Union County.
Are home prices or rent rising faster in Union County, South Dakota?
Both home prices and rent are rising in Union County, up about 5.1% and 4.0% a year respectively. Home prices are changing faster.
What is the homeownership rate in Union County, South Dakota?
70.4% of households in Union County, South Dakota own their home, higher than the South Dakota average of 61.3%.
What is the vacancy rate in Union County, South Dakota?
The housing vacancy rate in Union County, South Dakota is 3.7%, lower than the South Dakota average of 10.5%.
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