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Single Family ResidenceResidential
$441,382$119 / 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 86How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026

320 MONROE ST

SAINT CHARLES, MO 63301
3
Beds
3.5
Baths
3,718 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.
0.15 ac
Lot SizeThe size of the land the home sits on, from county records.
1906
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$441K
$381K low$501K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,153 (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.$82,483 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$80,044
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$434,123

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.0.15
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 239 ft²

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

H
St. Charles SchoolB
High · Grades 9–12 · 0.6 mi
M
Hardin Middle SchoolA-
Middle · Grades 7–8 · 0.9 mi
E
Blackhurst Elementary SchoolA
Elementary · Grades KG–4 · 0.9 mi

District: St. Charles R-Vi School District

Neighborhood · ZIP 63301These 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.120
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.118

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.53,106
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.552 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$82,101
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$97,805
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.39 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

320 Monroe St 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 82% of homes in Saint Charles 63301
  • Costs less per square foot than 98% of homes in St. Charles County
  • Bigger than 96% of homes in Saint Charles 63301
  • Has a smaller lot than 80% of homes in St. Charles County
  • Among the oldest homes in St. Charles County

What homes are worth in Saint Charles 63301

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

This home
$150K$659K

This home is worth more than 82% of homes in Saint Charles 63301.

How it measures up in Saint Charles 63301

The dot is this home. The mark in the middle is the typical home in Saint Charles 63301.

Estimated value$441,382
CheaperTypical $307,184Pricier

Pricier than 82% of homes nearby

Price per ft²$119
CheaperTypical $185Pricier

Pricier than 5% of homes nearby

Living area3,718 ft²
SmallerTypical 1,714 ft²Bigger

Bigger than 96% of homes nearby

Lot size0.15 ac
SmallerTypical 0.19 acBigger

Bigger than 32% of homes nearby

Year built1906
OlderTypical 1972Newer

Newer than 4% of homes nearby

How 320 Monroe St ranks against every home in each area.
MeasureThis homeSaint Charles 63301St. Charles County
Estimated valuepricier than$441,38282% of homes71% of homes
Price per ft²pricier than$1195% of homes2% of homes
Living areabigger than3,718 ft²96% of homes93% of homes
Lot sizebigger than0.15 ac32% of homes20% of homes
Year builtnewer than19064% of homesalmost no homes

About 320 Monroe St

How much is 320 Monroe St, Saint Charles, MO worth?

The TopHap Estimate for 320 Monroe St, Saint Charles, MO is $441,382 as of Sep 24, 2026. The likely range is $381,453 to $501,311. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 320 Monroe St, Saint Charles, MO last sell?

320 Monroe St, Saint Charles, MO last sold on Sep 15, 1998, according to the county's recorded deed.

How big is 320 Monroe St, Saint Charles, MO?

320 Monroe St, Saint Charles, MO has 3 bedrooms, 3.5 bathrooms, 3,718 square feet of living space and a 0.15-acre lot.

When was 320 Monroe St, Saint Charles, MO built?

320 Monroe St, Saint Charles, MO was built in 1906, making it 120 years old. It is a bi-level home. The building has 2 stories.

What schools serve 320 Monroe St, Saint Charles, MO?

320 Monroe St, Saint Charles, MO is assigned to St. Charles School (high), rated B; Hardin Middle School (middle), rated A-; Blackhurst Elementary School (elementary), rated A. All sit in St. Charles R-Vi School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 320 Monroe St, Saint Charles, MO compare to other homes in Saint Charles 63301?

Among the 18,974 homes in Saint Charles 63301, it is worth more than 82% of them ($441,382 against a typical $307,184), its price per square foot is higher than 5% of them ($119 against a typical $185), it is bigger than 96% of them (3,718 ft² against a typical 1,714 ft²), its lot is bigger than 32% of them (0.15 ac against a typical 0.19 ac) and it is newer than 4% of them (1906 against a typical 1972). Measured against all of St. Charles County, it is worth more than 71% 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 320 Monroe St, Saint Charles, MO?

The 2025 property tax bill for 320 Monroe St, Saint Charles, MO was $5,153. The county assessed it at $82,483.

More homes on Monroe St

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Assigned schools

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