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Single Family ResidentialResidential
$141,026$195 / 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 93How 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

406 POTOSI ST

FARMINGTON, MO 63640
3
Beds
1
Baths
722 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.
0.52 ac
Lot SizeThe size of the land the home sits on, from county records.
1947
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
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

$141K
$131K low$151K high

Tax & Assessment

Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$12,770 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$3,190
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$9,580
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$12,770
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$67,190

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residential
StyleThe architectural style of the home, such as ranch or colonial.A-Frame
CountySt. Francois
Lot (acres)The size of the land the home sits on, from county records.0.52
ConstructionThe main material the home's frame and walls are built from.Wood Frame
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Concrete
HeatingThe type of heating system in the home.Forced Air
CoolingThe type of cooling or air conditioning in the home.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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 225 ft²

Foreclosure Filings(1)

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

E
Washington-Franklin Elementary SchoolA-
Elementary · Grades 1–4 · 0.4 mi
H
Farmington Sr. High SchoolB+
High · Grades 9–12 · 0.6 mi
M
Farmington Middle SchoolA-
Middle · Grades 7–8 · 1.2 mi

District: Farmington R-Vii School District

Neighborhood · ZIP 63640These 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.98
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.98
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.171

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.12%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.15%
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.27,753
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.146 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$60,862
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$74,811
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.44 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.56%

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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

406 Potosi 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 less than 95% of homes in Farmington 63640
  • Costs more per square foot than 74% of homes in St. Francois County
  • Smaller than 98% of homes in Farmington 63640
  • Older than 86% of homes in Farmington 63640

What homes are worth in Farmington 63640

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

This home
$120K$636K

This home is worth more than 5% of homes in Farmington 63640.

How it measures up in Farmington 63640

The dot is this home. The mark in the middle is the typical home in Farmington 63640.

Estimated value$141,026
CheaperTypical $264,132Pricier

Pricier than 5% of homes nearby

Price per ft²$195
CheaperTypical $181Pricier

Pricier than 62% of homes nearby

Living area722 ft²
SmallerTypical 1,480 ft²Bigger

Bigger than 2% of homes nearby

Lot size0.52 ac
SmallerTypical 0.6 acBigger

Bigger than 47% of homes nearby

Year built1947
OlderTypical 1986Newer

Newer than 14% of homes nearby

How 406 Potosi St ranks against every home in each area.
MeasureThis homeFarmington 63640St. Francois County
Estimated valuepricier than$141,0265% of homes29% of homes
Price per ft²pricier than$19562% of homes74% of homes
Living areabigger than722 ft²2% of homes8% of homes
Lot sizebigger than0.52 ac47% of homes57% of homes
Year builtnewer than194714% of homes22% of homes

About 406 Potosi St

How much is 406 Potosi St, Farmington, MO worth?

The TopHap Estimate for 406 Potosi St, Farmington, MO is $141,026 as of Sep 24, 2026. The likely range is $131,486 to $150,566. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 406 Potosi St, Farmington, MO last sell?

406 Potosi St, Farmington, MO last sold on Oct 7, 2020, according to the county's recorded deed.

How big is 406 Potosi St, Farmington, MO?

406 Potosi St, Farmington, MO has 3 bedrooms, 1 bathrooms, 722 square feet of living space and a 0.52-acre lot.

When was 406 Potosi St, Farmington, MO built?

406 Potosi St, Farmington, MO was built in 1947, making it 79 years old. It is a a-frame home. The building has 1 story.

What schools serve 406 Potosi St, Farmington, MO?

406 Potosi St, Farmington, MO is assigned to Washington-Franklin Elementary School (elementary), rated A-; Farmington Sr. High School (high), rated B+; Farmington Middle School (middle), rated A-. All sit in Farmington R-Vii School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 406 Potosi St, Farmington, MO compare to other homes in Farmington 63640?

Among the 8,700 homes in Farmington 63640, it is worth more than 5% of them ($141,026 against a typical $264,132), its price per square foot is higher than 62% of them ($195 against a typical $181), it is bigger than 2% of them (722 ft² against a typical 1,480 ft²), its lot is bigger than 47% of them (0.52 ac against a typical 0.6 ac) and it is newer than 14% of them (1947 against a typical 1986). Measured against all of St. Francois County, it is worth more than 29% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

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