4 Bedroom Homes for Sale in Alton, IL

This representation is based in whole or in part on data supplied by Midwest Real Estate Data, LLC through Oct 29, 2026, 6:30 AM. Midwest Real Estate Data, LLC does not guarantee nor is it in any way responsible for its accuracy. Data maintained by Midwest Real Estate Data LLC may not reflect all real estate activity in the market.

Based on information submitted to the MLS GRID as of Oct 29, 2026, 6:30 AM. All data is obtained from various sources and has not been, and will not be, 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. This website may not include listings or property addresses of sellers who have directed their listing brokers to withhold their listing or their property address from display on the Internet. Some IDX listings have been excluded from this website. 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 MLS GRID, MRED or Houzeo. The use of the MLS GRID Data may be subject to an end user license agreement. Properties displayed may be listed or sold by various participants in the MLS,

Listings courtesy of MRED as distributed by MLS GRID. ©2026 Midwest Real Estate Data LLC. All Rights Reserved

Based on information from Mid America Regional Information Systems, Inc. through Oct 29, 2026, 6:31 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. Some IDX listings have been excluded from this website. Properties displayed may be listed or sold by various participants in the MLS. Property data presented reflect information otherwise available from public records. The REALTOR® providing this information may not have represented the buyer or seller in some or all of the transactions.
IDX information is provided exclusively for consumers’ personal noncommercial use, that it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing, that the data is deemed reliable but is not guaranteed by MLS GRID, and that the use of the MLS GRID Data may be subject to an end user license agreement prescribed by the Member Participant’s applicable MLS if any and as amended from time to time. © 2026 Mid America Regional Information Systems, Inc. All Rights Reserved.