Real Estate & Homes for Sale in Alton

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Based on information submitted to the MLS GRID as of . 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. Data last updated: MRED DMCA Copyright Information Copyright © 2025 Midwest Real Estate Data LLC. All rights reserved.