Cheapest ZIPs in Saint Charles County, MO
No ZIP in Saint Charles County, MOclears the HavenScore: 60 quality floor this month — in high-cost counties, low prices and strong scores rarely overlap. Below is the affordable end anyway: the county’s most affordable scored ZIPs, ranked by median home value with each ZIP’s score shown. Refreshed July 2026.
- 163386West Alton, MO$188,723HavenScore: 58
- $248,279HavenScore: 55
- 363301Saint Charles, MO$322,248HavenScore: 52
- 463376Saint Peters, MO$333,163HavenScore: 56
- 563303Saint Charles, MO$361,702HavenScore: 54
- 663366O Fallon, MO$366,565HavenScore: 54
- 763385Wentzville, MO$405,322HavenScore: 58
- 863304Saint Charles, MO$409,518HavenScore: 56
- 963368O Fallon, MO$420,660HavenScore: 55
- 1063367Lake Saint Louis, MO$444,626HavenScore: 59
Related pages
Frequently asked questions
- Why doesn't this list use the usual quality floor?
- Cheapest-ZIPs lists normally include only ZIPs with HavenScore: 60 or above. No ZIP in Saint Charles County, MO clears that floor this month, so this page shows the county's most affordable scored ZIPs instead — with each ZIP's HavenScore shown, so the trade-off stays visible.
- How is "most affordable" measured here?
- ZIPs are ranked by median home value from lowest to highest across every scored ZIP in Saint Charles County, MO. Because no ZIP clears the quality floor this month, no score filter is applied to this list.
- How often is this list updated?
- This page refreshes monthly when our pipeline ingests new data from Zillow, Redfin, Census, FHFA, and FRED.