Home › Counties › Union County, SD
The median home value in Union County, SD is $358,600 as of 2026-08-31, up 3.25% from a year earlier.
Median Home Value
$358,600
Year-over-Year
+3.25%
National Rank
#607 of 3071
Union County ranks 6th out of 50 counties in SD by median home price, and is +52.5% above the U.S. national median of $235,072. Within SD, the typical county has a median home value of $262,610, making Union County +36.6% above the SD state median.
The typical home value increased by 0.1%, from $358,095 in May 2026 to $358,600 in Aug 2026.
Monthly Zillow Home Value Index snapshots retained by HomePriceMap. A short history is shown now and grows automatically as each new monthly release arrives.
| Month | Typical home value | Year-over-year change |
|---|---|---|
| May 2026 | $358,095 | +4.2% |
| Jun 2026 | $363,556 | +4.0% |
| Jul 2026 | $363,886 | +3.5% |
| Aug 2026 | $358,600 | +3.2% |
Households here earn a median of $89,636 a year against a typical home value of $358,600 — a price-to-income ratio of 4.0×, above the 3× level usually considered comfortable, but below 5×. That is less affordable than roughly 63% of U.S. counties. (How this is calculated.)
The median home value in Union County is $358,600. That's up 3.25% from a year earlier. That is about 52.5% above the U.S. national county median of $235,072, and makes Union County the 6th most expensive of 50 counties in South Dakota.
Median household income here is $89,636, so a typical home costs about 4.0× annual household earnings — moderately expensive compared with other U.S. counties.
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