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County Overview

Union County, SD

Aggregate real estate market report across county ZIPs
Balanced Market
September 2026  ·  Source: Realtor.com

Market Analysis

Data as of September 2026. Source: Realtor.com.

The Union County, SD real estate market currently shows 90 active listings, with 16 pending sales. Homes are averaging 55 days on the market before going under contract.

Inventory has increased compared to last year, with 6 more homes available — giving buyers more choice.

Homes are selling faster, averaging 55 days on market compared to 74 days last year.

The median listing price has fallen 11.3% year-over-year, from $507,450 to $449,950.

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Market Context

Market Context

Population: 13,909  ·  Density: 119.1/mi²  ·  Median household income: $85,183

Typical home value: $306,806  ·  Homeownership: 70.3%

Included Areas

Alcester: 57001

Elk Point: 57025

Jefferson: 57038

McCook Lake: 57049

Area Map

Market Overview

Active Listings
90
⇧ 7.1% vs 84 last year
Pending
16
18% pending ratio
Median Price
$449,950
⇩ 11.3% vs $507,450 last year
Average Price
$638,463
⇩ 4.4% vs $667,628 last year
Days on Market
55
⇩ 25.7% vs 74 days last year

Price Per Square Foot

Median $/sqft
$180
⇧ 9.8% vs $164/sqft last year
Median Home Size
2,760 sqft
Typical listing size
12-Month $/sqft Trend

Sale-to-List Price Dynamics

At Original Price
99.9%
Listings with no price change
Price Reduced
0.1%
⇩ 43.8% vs 0.2% last year
12-Month Price Reduction Trend

Based on listing price changes before sale/pending as a proxy for sale-to-list dynamics. Source: Realtor.com.

12-Month Trends

Historical Trend Charts

Median Price
Average Price
Days on Market
Total Listings
Pending Listings
Active Listings
New Listings
Price Per Sqft
Price Reduced %