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Single Family ResidenceResidential
$572,080$173 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 91How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $174,900 on Jan 9, 2001

9 RIVER VALLEY CT

SAINT CHARLES, MO 63303
4
Beds
2.5
Baths
3,306 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
0.4 ac
Lot SizeThe size of the land the home sits on, from county records.
1985
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
10
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$572K
$522K low$622K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$174,900 · Jan 9, 2001

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,370 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$106,374 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$96,877
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$559,864

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Bi-Level
CountyST. CHARLES
Lot (acres)The size of the land the home sits on, from county records.0.40
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

M
Barnwell Middle SchoolA
Middle · Grades 6–8 · 0.8 mi
E
Becky-David Elementary SchoolC+
Elementary · Grades PK–5 · 0.9 mi
H
Francis Howell North High SchoolA-
High · Grades 9–12 · 1.9 mi

District: Francis Howell R-Iii School District

Neighborhood · ZIP 63303These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.109
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.79
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.120

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.49,298
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,208 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$97,943
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$126,979
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.40 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.57%

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Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

9 River Valley Ct measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth more than 93% of homes in Saint Charles 63303
  • Bigger than 89% of homes in Saint Charles 63303
  • Has a bigger lot than 86% of homes in Saint Charles 63303
  • Older than 68% of homes in St. Charles County

What homes are worth in Saint Charles 63303

Each bar is how many homes fall in that price range. The marker is this home.

This home
$134K$735K

This home is worth more than 93% of homes in Saint Charles 63303.

How it measures up in Saint Charles 63303

The dot is this home. The mark in the middle is the typical home in Saint Charles 63303.

Estimated value$572,080
CheaperTypical $355,292Pricier

Pricier than 93% of homes nearby

Price per ft²$173
CheaperTypical $172Pricier

Pricier than 51% of homes nearby

Living area3,306 ft²
SmallerTypical 2,012 ft²Bigger

Bigger than 89% of homes nearby

Lot size0.4 ac
SmallerTypical 0.22 acBigger

Bigger than 86% of homes nearby

Year built1985
OlderTypical 1988Newer

Newer than 39% of homes nearby

How 9 River Valley Ct ranks against every home in each area.
MeasureThis homeSaint Charles 63303St. Charles County
Estimated valuepricier than$572,08093% of homes89% of homes
Price per ft²pricier than$17351% of homes40% of homes
Living areabigger than3,306 ft²89% of homes88% of homes
Lot sizebigger than0.4 ac86% of homes84% of homes
Year builtnewer than198539% of homes32% of homes

About 9 River Valley Ct

How much is 9 River Valley Ct, Saint Charles, MO worth?

The TopHap Estimate for 9 River Valley Ct, Saint Charles, MO is $572,080 as of Aug 30, 2026. The likely range is $522,378 to $621,782. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 9 River Valley Ct, Saint Charles, MO last sell?

9 River Valley Ct, Saint Charles, MO last sold on Jan 9, 2001 for $174,900, according to the county's recorded deed.

How big is 9 River Valley Ct, Saint Charles, MO?

9 River Valley Ct, Saint Charles, MO has 4 bedrooms, 2.5 bathrooms, 3,306 square feet of living space and a 0.40-acre lot.

When was 9 River Valley Ct, Saint Charles, MO built?

9 River Valley Ct, Saint Charles, MO was built in 1985, making it 41 years old. It is a bi-level home. The building has 2 stories.

What schools serve 9 River Valley Ct, Saint Charles, MO?

9 River Valley Ct, Saint Charles, MO is assigned to Barnwell Middle School (middle), rated A; Becky-David Elementary School (elementary), rated C+; Francis Howell North High School (high), rated A-. All sit in Francis Howell R-Iii School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 9 River Valley Ct, Saint Charles, MO compare to other homes in Saint Charles 63303?

Among the 16,151 homes in Saint Charles 63303, it is worth more than 93% of them ($572,080 against a typical $355,292), its price per square foot is higher than 51% of them ($173 against a typical $172), it is bigger than 89% of them (3,306 ft² against a typical 2,012 ft²), its lot is bigger than 86% of them (0.4 ac against a typical 0.22 ac) and it is newer than 39% of them (1985 against a typical 1988). Measured against all of St. Charles County, it is worth more than 89% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 9 River Valley Ct, Saint Charles, MO?

The 2025 property tax bill for 9 River Valley Ct, Saint Charles, MO was $6,370. The county assessed it at $106,374.

More homes on River Valley Ct

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