Union County, SD housing market
Data through Aug 2026 · Balanced market · leverage 74
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Home Value
$358,600
+3.2% vs. a year ago
Buyer Leverage Score
74
Sep 2026
Months of Supply
5.8 months
Aug 2026
Days on Market
55 days
Sep 2026
Price Cut %
18%
Sep 2026
Sale-to-List Ratio
95.6%
Aug 2026
Mtg Payment as % of Income
31%
Aug 2026
Overvalued %
26%
Aug 2026
Expected Disaster Loss
$190
Dec 2025
What this means
- Valuation. Prices are 26% above what local incomes have historically supported (this area's pre-2020 price-to-income ratio).
- Prices. Home values are up 3.2% over the past year (U.S.: +1.2%).
- Supply. There are 7% more homes for sale than the 2017-19 norm, so buyers have more to choose from than before the pandemic.
- Negotiating. Buyer leverage is high (74/100; U.S.: 54): homes sell for about 4.4% below their final list price; 18% of listings had a price cut (U.S.: 26%).
- Affordability. A mortgage on the typical home takes 31% of the median household income (U.S.: 35%); it takes about $94k a year to keep the payment at 30% of gross pay. That includes about $2,018 a year for home insurance (U.S.: $1,790).
- Disaster risk. FEMA expects about $190 a year in natural-disaster damage per $100k of building value (U.S.: $155), mostly from flooding.
- Outlook. No clear direction: likely −7% to +9% over the next 12 months (66% chance of a rise).
Next 12 months
No clear direction
A rise is somewhat more likely than a fall, but not by enough to call. Likely change: −7.1% to +9.3% (80% range; middle estimate +2.4%), chance of a rise 66%, of a 5%+ drop 14%.
HouseVane's model, refit every month on local market signals and national ones, trained only on data known at the time. How accurate it has been.
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ZIP codes in Union County, SD
| Area | Home value | 1-year change | Buyer leverage |
|---|---|---|---|
| North Sioux City, SD 57049 | $425.4K | +1.5% | 75 |
| Elk Point, SD 57025 | $297.6K | +3.9% | 75 |
| Jefferson, SD 57038 | $391.3K | +3.2% | 22 |
| Alcester, SD 57001 | $288.5K | +5.1% | 9 |