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Union County, SD real estate

Compare top Union County real estate agents.

Agent Pronto analyzes transaction data, agent specialties, and client reviews to handpick the best agents in your area. Updated for April 2026. *


* Sales data is calculated based on transaction information available to Agent Pronto at the time of publishing and may not accurately reflect all transactions for a given agent.

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Union County real estate Market Report.

Information and statistics on the latest trends in the Union County real estate market, updated for April 2026. *

Union County is seeing relatively lean inventory, with 39 homes on the market and 17 new listings in February 2026. Pending sales reached 22, indicating buyers are still writing contracts even as choices tighten. Months of supply sits at 3.3, which aligns with a seller’s market reading on the local gauge.

Prices are responding to this setup with notable strength. The typical home value stands around $454,000, far above the South Dakota figure of about $327,100, and is projected to rise toward $571,300 next month while the projected median list price edges up to roughly $530,525.

Homes are taking some time to move, spending a median of 73 days on the market, and about 25.64% of sellers adjusted their price before finding a buyer. Only 16.67% of recent sales closed above list price, and the average sale-to-list ratio is just under full asking at 0.97, showing buyers still have some room to negotiate even in a seller-leaning environment. Inventory has fallen about 15.22% month over month and 25% year over year, while pending sales have inched up 4.76%, underscoring the tension between limited supply and steady demand. With conditions shifting quickly for both buyers and sellers, Agent Pronto can connect you with an experienced local agent who understands how to navigate this Union County market.

Union County, SD real estate
18
Seller’s Market
Seller’s Market
Buyer’s Market
0
25
50
75
100

Market gauge is calculated based on the the number of active listings divided by home sales over the most recently available reporting period.

* Data provided by Redfin, a national real estate brokerage.

Learn more about what Union County has to offer.

Union County offers residents a welcoming community, excellent schools, abundant outdoor recreation, and a growing economy that supports families and local businesses.

Union County stands out from nearby Sioux City and Dakota Dunes with a quieter rural pace that still keeps you close to major employers, shopping, and cultural events. Many residents choose communities like Beresford, Alcester, and North Sioux City for their strong local identity, where schools, sports, and civic events bring people together throughout the year.

Along the Missouri and Big Sioux rivers, outdoor time is part of daily life. Families gather at Adams Homestead and Nature Preserve for walking and biking trails, birding, and river views, while golf and community events are a draw at Two Rivers Golf Club. Local history and culture are highlighted through county resources and nearby museums, including the Union County Courthouse in Elk Point and regional institutions like the Sioux City Public Museum.

Strong schools are a key reason families stay, with districts such as Dakota Valley School District and Alcester-Hudson School District offering close-knit learning environments and active extracurricular programs.

Whether you already live in Union County or are relocating for work or lifestyle, planning your move is crucial. Market conditions can shift quickly along the Sioux City corridor, so connecting early with the right local expert through Agent Pronto helps both buyers and sellers prepare, price, and time their decisions with confidence.

Find your Union County real estate agent today →


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See why so many people rely on Agent Pronto to make their real estate journey a success.

“Shawna was great to work with. She really quickly understood what was most important to me in the home buying process and what I was expecting for the price. She used her experience to steer me in the right direction and give me valuable feedback to support in my decisions. I felt she wanted to help me to make a great decision not just buy quickly and move on to the next client.”

Jared Sharp · Regina, SK

Photo of Shawna Seibel
RE/MAX Crown Real Estate
“Jake was very helpful both during my purchase and my sale. I recommend hm and Harper staff.”

Marvina Irvine · Myrtle Beach, SC

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Century 21 The Harrelson Group
“Jo is a personal friend but I feel she treated us with utmost professional service.”

Karen Jacobs · Bismarck, ND

Photo of Jo Ellen  Kralicek
Century 21 Morrison Realty
“Very helpful, positive, and knowledgeable. She was amazjng. It felt like she really wanted what was best for me and listened to what i wanted.”

Sead Sejdiu · Yorkville, IL

Photo of Wendi Sleezer
Swanson Real Estate
“Scott was great, super knowledgeable and worked diligently to help us get the home we wanted. We're first time homebuyers and he went above and beyond to make sure everything went smooth. He also gave me lots of contacts for home repair and service. I look forward to working with Scott again when it comes time to sell. I strongly recommend Scott to anyone looking to buy a home!!!”

Tyler Dillon · Columbus, IN

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Century 21 Breeden Realtors
“We enjoyed working with Lacy so much! She was communicative, friendly and so helpful! We sold our home in record time! I'd recommend Lacy to anyone and everyone!!”

Kaitlyn Odom · Benton, AR

Photo of Lacy Wilmoth
Century 21 Parker and Scroggins Realty
“My wife and I thoroughly enjoyed our experience with Mike. He was extremely attentive, responding to all our questions (and we had a lot of them) with timeliness and thoroughness. We felt we had his full attention, even though he had 100 other things going on, I'm sure. Overall, he made us feel imformed, safe, and empowered. And we had fun! Great guy and a great experience.”

William VanderVeen · Bristol, VA

Photo of Creation Properties
Century 21 Legacy
“Very seasoned in a market that is competitive and complex. Knowledge in a very trying market where there is alot of uncertainty with current events she kept us calm and steady. She was able to draw alot of traffic and visibility. She is very well connected and very good with numbers, those skills helped us sell our house. 💯 recommend. Erin is a talened and capable agent, and a caring person with strong character and genuinely cares. Thank you Erin!!”

Brandon Quick · Ewa Beach, HI

Photo of Erin Evans
Century 21 Island Homes
“Excellent service !!!”

Desta Belayneh · Woodbridge, VA

Photo of Judy Petrak
Century 21 New Millennium
“Wade was excellent to work with. We were moving back to the states from overseas and he was extra accomodating to the time zone difference. We had complete trust and confidence in Wade's abilities and recommendation. Once we picked a house to put an offer in on, he was aggressive to ensure our offer was best postured. Due to his diligence and expertise, we are now proud owners of the perfect house for our family.”

Ryan · Lutz, FL

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Century 21 Executive Team
“John listed the property and within the first showings we had the offers we were looking for. Closed within 30 days and at asking price. John did a wonderful job!”

Tyler Smith · Bethlehem, PA

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Century 21 Select Group
“Justin was the best! I worked with him on a referral and he went above and beyond. He helped my clients move from South Carolina to Texas and everything was very smooth. I would definitely recommend Justin in the future and looking forward to hopefully working together again.! Thanks Justin!”

Maro · Canyon Lake, TX

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Real Broker, LLC
“Sean was professional, fun, and extremely knowledgeable. He took our needs seriously and advocated for us all along the way!”

Bret Amundson · Colorado Springs, CO

Photo of Sean Andrews
Corcoran Perry & Co.
“We could have picked a better realtor to help us sell out house. She communicated with us instantly and was always available for any questions we had.”

Cynthia · Wiggins, CO

Photo of Dayleen Mitchell
Century 21 Cornetsone
“We had a great and EASY experience with Brad. Would absolutely recommend him to anyone home shopping or selling.”

Shawna Abercrombie · Christiana, TN

Photo of Brad Fowler
Century 21 Wright Realty
“Paul's knowledge and professionalism made the process of selling our house very easy. He was there when we had questions and helped us throughout the sale. We highly recommend Paul and Carrie.”

Larry and Sherry Jackson · Fresno, CA

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RE/MAX Gold
“Susan was on the ball and very pleasant to work with. Highly recommend her to anyone.”

Carolyn Floyd · Daytona Beach, FL

Photo of Susan Summers
Century 21 Sundance Realty
“Felicia was very understanding to the needs of the home that suited our family size and it's location. Overall very knowledgeable of what we were looking for and very patient.”

Thomas Shelvy · Rochester Hills, MI

Photo of Felicia Attebery
House of Brokers Realty, Inc.
“We’ve worked with Chris Smith twice now (first as buyers and most recently as sellers), and we couldn't ask for a better partner. He is the definition of patient; a year ago, he stuck by us as we toured over 50 homes to find the perfect fit, never once making us feel rushed. He’s a fantastic communicator and a genuinely good person who makes a stressful process feel easy. If you want someone who is level-headed and truly has your back, Chris is your guy.”

Dustin Muse · Columbia, MO

Photo of Chris Smith
Century 21 Community
“I hired Denise to sell my parents' home in Fairfax, CA following my father's passing away. Since I live abroad and travel frequently, I needed an agent who could design and manage a sale process without constant input from me (and my 9-hour time difference!). Denise turned out to be just the person. We were able to empty the home of my parents' effects, make the indoor and outdoor repairs and improvements necessary for the sale, organize the staging, and get the house on the market within a month of my hiring her. I give her top marks and recommend her strongly. Fantastic agent.”

John Curran · CA

Photo of Denise Montalvo
Compass

Frequently Asked Questions

There are more than 2 million real estate agents across the U.S., and you want to be sure the one you partner with is an experienced and trustworthy professional with strong local expertise covering the housing market in and around Union County. Working with a proven agent will help you sell your home faster and for more money, and help you find your dream home at the best possible price.