Safety & registry resources

Review official public-safety information for any area from these government sources:

U.S. Dept. of Justice National Sex Offender Public Website (NSOPW)
FBI: state sex-offender registry directory

Single-Family Homes in Roundup, MT

Buy

Start here

Homes for sale by state
Home buying tips
Before you start looking
The buying timeline

Afford it

Today's mortgage rates
Mortgage calculator
How much can I afford?
Get pre-approved

Make the deal

Writing a winning offer
Inspections & appraisals
Closing costs, itemized
Find a buyer's agent

Save search Advertise Sign In

Saved homes Saved searches Your tours Your inquiries Recently viewed Account settings

Commercial

16 listings

Sell

Selling Options

What's my home worth?
Compare selling options
Get an instant cash offer
Buy before you sell

Resources

How selling works
When should I sell?
Home selling tips
Pricing your home
What's worth fixing first
Find a seller's agent

Home Loans

Find an Agent

Save search

Single-Family Homes in Roundup, MT

Hide Map

16 Listings

Map

16 Listings

Your local brokerage

Thomas O'Leary

Realty.com

Lic. #RRE-BRO-LIC-52906

Call Thomas

36Active
$270,000
4 bd · 2 ba · 2,931 sqft
620 3rd Street W, Roundup, MT
Jeff Watson · Berkshire Hathaway HS Floberg
23Active
$150,000
2 bd · 1 ba · 1,584 sqft
11 Klein Road, Roundup, MT
Jeanette Busony · eXp Realty, LLC - Billings
48Active
$455,000
4 bd · 2 ba · 2,016 sqft
535 Horsethief Road, Roundup, MT
Nicole Morrow · eXp Realty, LLC

29Active
$365,000
3 bd · 2 ba · 2,729 sqft
328 3rd Avenue W, Roundup, MT
Nicole Gunsch · Keller Williams Yellowstone Pr
24Active
$325,000
4 bd · 2 ba · 1,814 sqft
320 2nd Street E, Roundup, MT
Nicole Gunsch · Keller Williams Yellowstone Pr
35Active
$175,000
2 bd · 1 ba · 708 sqft
214 2nd Street E, Roundup, MT
Kelphen Lienemann · Dream Realty
Price Reduced37Active
$150,000
9 bd · 5 ba · 3,706 sqft
804 2nd Street W, Roundup, MT
Amber Uhren · Realty Billings
38Active
$125,000
2 bd · 1 ba · 640 sqft
151 Snowflake Road, Roundup, MT
Brem Fellman · Metro, REALTORS L.L.P
Price Reduced30Active
$179,900
1 bd · — ba · 288 sqft
110 Snowflake Road, Roundup, MT
Ken Mucha · Real Estate Hub LLLP
Price Reduced24Active
$215,000
3 bd · 2 ba · 1,460 sqft
807 4th Street W, Roundup, MT
Amber Martinez · Rock Star Realty Montana
31Active
$395,000
3 bd · 3 ba · 1,968 sqft
1112 3rd Street E, Roundup, MT
Marie Barth · Kelly Right Real Estate
Price Reduced43Active
$279,000
4 bd · 2 ba · 2,000 sqft
1201 3rd Street W, Roundup, MT
Marie Barth · Kelly Right Real Estate
Price Reduced31Active
$439,900
5 bd · 4 ba · 3,729 sqft
501 1st Street W, Roundup, MT
Patrick Riley · LP Bar Realty
Price Reduced10Active
$120,000
2 bd · 1 ba · 2,017 sqft
421 9th Avenue W, Roundup, MT
Brad Witten · Coldwell Banker The Brokers
Price Reduced32Active
$235,000
3 bd · 2 ba · 2,351 sqft
420 3rd Street W, Roundup, MT
Marie Barth · Kelly Right Real Estate
8Active
$345,000
3 bd · 1 ba · 864 sqft
10 W Sunshine Road, Roundup, MT
Shawn Johnston · Keller Williams Yellowstone Pr

Listing data & MLS disclosures

Billings Multiple Listing Service: Copyright © 2026 Billings Association of REALTORS® Incorporated and Billings MLS Incorporated. All rights reserved. The sharing of MLS database, or any portion thereof, with any unauthorized third party is strictly prohibited. Information contained on this site is believed to be reliable, yet, users of this website are responsible for checking the accuracy, completeness, currency, or suitability of all information. Neither the Billings Association of REALTORS® Incorporated nor Billings MLS Incorporated makes any representation, guarantees, or warranties as to the accuracy, completeness, currency, or suitability of the information provided. They specifically disclaim any and all liability for all claims or damages that may result from providing information to be used on the website, or the information which it contains, including any websites maintained by third parties, which may be linked to this website. The information being provided is for the consumers' personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties which consumers may be interested in purchasing. The user of this site is granted permission to copy a reasonable, and limited number of copies to be used in satisfying the purposes identified in the preceding sentence. By using this site, you signify your agreement with and acceptance of these terms and conditions. If you do not accept this policy, please do not use this site in any way. Your continued use of this site, and/or its affiliates' sites, following the posting of changes to these terms will mean you accept those changes, regardless of whether you are provided with additional notice of such changes. Copyright © 2026 Billings MLS, Inc.

About Single-Family Homes in Roundup, MT

Single-Family Homes in Roundup, MT: 16 active listings as of October 11, 2026, 22:23 UTC.

Roundup, MT community profile

Population: 1,989
Median income: $52,397
Housing units: 1,191
People per sq. mi.: 1.5
Area: 1,362 sq. mi.

Source: HJN community data

L. Custen Realty, Inc. d/b/a Realty.com/L. Custen Realty CT, LLC d/b/a Realty.com (Tom O’Leary-Broker)(CT properties only), 8323 Southwest Freeway, Suite 900, Houston, Texas 77074

The information provided by this website is for the personal, non-commercial use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Listing data is derived from various Multiple Listing Services; each source MLS and its required disclaimer are shown with the listings on the applicable page. Realty.com is an independently owned and operated brokerage.

Listing data & MLS disclosures

Billings Multiple Listing Service: Copyright © 2026 Billings Association of REALTORS® Incorporated and Billings MLS Incorporated. All rights reserved. The sharing of MLS database, or any portion thereof, with any unauthorized third party is strictly prohibited. Information contained on this site is believed to be reliable, yet, users of this website are responsible for checking the accuracy, completeness, currency, or suitability of all information. Neither the Billings Association of REALTORS® Incorporated nor Billings MLS Incorporated makes any representation, guarantees, or warranties as to the accuracy, completeness, currency, or suitability of the information provided. They specifically disclaim any and all liability for all claims or damages that may result from providing information to be used on the website, or the information which it contains, including any websites maintained by third parties, which may be linked to this website. The information being provided is for the consumers' personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties which consumers may be interested in purchasing. The user of this site is granted permission to copy a reasonable, and limited number of copies to be used in satisfying the purposes identified in the preceding sentence. By using this site, you signify your agreement with and acceptance of these terms and conditions. If you do not accept this policy, please do not use this site in any way. Your continued use of this site, and/or its affiliates' sites, following the posting of changes to these terms will mean you accept those changes, regardless of whether you are provided with additional notice of such changes. Copyright © 2026 Billings MLS, Inc.

Your local brokerage

Thomas O'Leary

Realty.com

Lic. #RRE-BRO-LIC-52906

Call Thomas

Your local brokerage

Thomas O'Leary

Realty.com

Lic. #RRE-BRO-LIC-52906

Call Thomas

Roundup, MT community profile

Population: 1,989
Median income: $52,397
Housing units: 1,191
People per sq. mi.: 1.5
Area: 1,362 sq. mi.

Source: HJN community data