Home values, rents and more in St. Charles County, MO
September 2026 figures from Zillow and the U.S. Census Bureau · updated 2026-11-07
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How St. Charles County, MO compares
The typical home in St. Charles County, MO is worth about $372,000, according to the Zillow Home Value Index for September 2026. Home values in St. Charles County, MO are 36% above the typical value in the St. Louis metro area ($273,000) and about the same as the U.S. typical value ($366,000).
Over the past year, home values in St. Charles County, MO rose 2.2%, compared with +3.3% in the St. Louis metro area and +1.2% nationally.
Typical rent is $1,664 a month (Zillow Observed Rent Index), 17% above the St. Louis metro area ($1,427) and 14% below the U.S. ($1,932). Rents rose 4.1% over the past year.
The median household income is $104,692, against $80,196 in the St. Louis metro area and $80,734 in the U.S. (Census Bureau, American Community Survey 2020–24).
About 426,499 people live in St. Charles County, MO (Census Bureau estimate for July 2025).
St. Charles County, MO has the highest typical home value of the 15 counties in the St. Louis metro area and the 2nd-highest of 113 in Missouri with Zillow figures.
Part of: St. Louis metro area · Missouri
More for St. Charles County, MO in ProMap Plus
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- 5- and 10-year price changes
- Days on market and months of supply
- Price cuts and sale-to-list ratio
- Price-to-income and monthly cost to buy
- School test scores
- Flood, wildfire and natural hazard risk
- Property-tax rate
- Unemployment and job growth
- Building permits
- Mortgage delinquency
- 2024 presidential vote
- Age, education and household make-up
- Amenities and transit nearby
Nearby counties
Cities in St. Charles County, MO
- O Fallon, MO $378,000
- Saint Charles, MO $345,000
- Saint Peters, MO $321,000
- Wentzville, MO $402,000
- Lake Saint Louis, MO $433,000
- Dardenne Prairie, MO $472,000
- Cottleville, MO $503,000
- Weldon Spring, MO $632,000
- Saint Paul, MO $470,000
- Foristell, MO $450,000
- Flint Hill, MO $591,000
- West Alton, MO $169,000
- Portage des Sioux, MO $234,000
- Augusta, MO $568,000
ZIP codes in St. Charles County, MO
- 63301 · Saint Charles $318,000
- 63303 · Saint Charles $356,000
- 63304 · Saint Charles $401,000
- 63332 · Augusta $561,000
- 63341 · Defiance $636,000
- 63348 · Foristell $453,000
- 63366 · O Fallon $364,000
- 63367 · Lake Saint Louis $443,000
- 63368 · O Fallon $416,000
- 63373 · Portage des Sioux $242,000
- 63376 · Saint Peters $328,000
- 63385 · Wentzville $403,000
- 63386 · West Alton $170,000
Sources
Home values: Zillow Home Value Index (ZHVI), all homes, middle tier, smoothed and seasonally adjusted, September 2026. Rents: Zillow Observed Rent Index (ZORI), seasonally adjusted. Population: Census population estimates (July 2025) for states, metros and counties; ACS 2020–24 for cities and ZIP codes. Income: U.S. Census Bureau, ACS 2020–24 5-year estimates. Boundaries: U.S. Census Bureau cartographic boundary files. Compiled by Home Economics.
"Typical" is Zillow's middle-tier value (homes between the 35th and 65th percentiles), not a median sale price. Changes are over the 12 months to September 2026.