Homes for Sale Under 400K in Boulder County, CO

347 Homes for Sale

Sort by:Newest Listings

Don't miss out on new listings — and get instant email alerts!

Do Real Estate on the Go!

Find your dream home, receive real-time updates, and many more!

OPEN APP
Washington Park, Grand Junction Neighborhood Guide
Summer Valley, Aurora Neighborhood Guide
Sloan Lake, Denver Neighborhood Guide
Washington Virginia Vale, Denver Neighborhood Guide
Cherry Creek, Denver Neighborhood Guide
Baker, Denver Neighborhood Guide
Capitol Hill, Denver Neighborhood Guide
West Colfax, Denver Neighborhood Guide
Cheesman Park, Denver Neighborhood Guide
Stapleton, Denver Neighborhood Guide
Mortgage Calculator
How Much House Can I Afford
How to Buy a House
Best Places to Live in Colorado
Safest Places to Live in Colorado
Cheapest Places to Live in Colorado
  • mls-img
    Based on information from REcolorado®, Inc.through Oct 11, 2026, 3:30 AM. Not all properties were listed and/or closed by Company. This representation is based in whole or in part on content supplied by REcolorado®, Inc. REcolorado®, Inc. does not guarantee nor is it in any way responsible for its accuracy. Content maintained by REcolorado®, Inc. may not reflect all real estate activity in the market. Some IDX listings have been excluded from this website. Any use search of data on the website, other than by a consumer looking to purchase real estate, is prohibited. If Houzeo suspect “scraping” of the data has occurred, the suspicion and any evidence will be reported to the MLS. IDX information is provided exclusively for consumers' personal non-commercial use. It may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The data is deemed reliable but is not guaranteed by REcolorado®. The use of the IDX Data may be subject to an end user license agreement prescribed by REcolorado® as amended from time to time.
    Based on information submitted to the MLS GRID as of Oct 11, 2026, 3:30 AM. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. ©2026 REcolorado®, Inc. All Rights Reserved.
Click to see all homes
static map image
Satellite
Close IconHouzeo

Do Real Estate on the Go!

OPEN APP
For Sale
Price
Beds & Baths
Home Type
Filters
Save Search Share