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Single Family ResidenceResidential
$224,347$184 / 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 96How 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
Last sold for $69,700 on Jul 17, 2003

6821 OLD STATE ROUTE 21

BARNHART, MO 63012
1
Baths
1,216 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.
0.91 ac
Lot SizeThe size of the land the home sits on, from county records.
1964
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$224K
$214K low$234K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$69,700 · Jul 17, 2003

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,250 (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.$28,000 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$2,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$25,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$18,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$147,400

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.42
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
42
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
86
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
75
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
8
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyJEFFERSON
Lot (acres)The size of the land the home sits on, from county records.0.91
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.No Foundation
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Patio · 169 ft²Porch · 60 ft²

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

E
Antonia Elementary SchoolA
Elementary · Grades KG–5 · 1.2 mi
M
Antonia Middle SchoolA
Middle · Grades 6–8 · 3.0 mi
H
Seckman High SchoolB+
High · Grades 9–12 · 4.6 mi

District: Fox C-6 School District

Neighborhood · ZIP 63012These 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.81
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 100.154

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.11,373
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.425 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$97,549
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$113,137
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.41 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

6821 Old State Route 21 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 80% of homes in Barnhart 63012
  • Costs less per square foot than 74% of homes in Barnhart 63012
  • Has a bigger lot than 68% of homes in Barnhart 63012
  • Older than 90% of homes in Barnhart 63012

What homes are worth in Barnhart 63012

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

This home
$148K$602K

This home is worth more than 20% of homes in Barnhart 63012.

How it measures up in Barnhart 63012

The dot is this home. The mark in the middle is the typical home in Barnhart 63012.

Estimated value$224,347
CheaperTypical $278,315Pricier

Pricier than 20% of homes nearby

Price per ft²$184
CheaperTypical $221Pricier

Pricier than 26% of homes nearby

Living area1,216 ft²
SmallerTypical 1,318 ft²Bigger

Bigger than 41% of homes nearby

Lot size0.91 ac
SmallerTypical 0.32 acBigger

Bigger than 68% of homes nearby

Year built1964
OlderTypical 1986Newer

Newer than 10% of homes nearby

How 6821 Old State Route 21 ranks against every home in each area.
MeasureThis homeBarnhart 63012Jefferson County
Estimated valuepricier than$224,34720% of homes27% of homes
Price per ft²pricier than$18426% of homes35% of homes
Living areabigger than1,216 ft²41% of homes40% of homes
Lot sizebigger than0.91 ac68% of homes67% of homes
Year builtnewer than196410% of homes19% of homes

About 6821 Old State Route 21

How much is 6821 Old State Route 21, Barnhart, MO worth?

The TopHap Estimate for 6821 Old State Route 21, Barnhart, MO is $224,347 as of Sep 24, 2026. The likely range is $214,451 to $234,243. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 6821 Old State Route 21, Barnhart, MO last sell?

6821 Old State Route 21, Barnhart, MO last sold on Jul 17, 2003 for $69,700, according to the county's recorded deed.

How big is 6821 Old State Route 21, Barnhart, MO?

6821 Old State Route 21, Barnhart, MO has 1 bathrooms, 1,216 square feet of living space and a 0.91-acre lot.

When was 6821 Old State Route 21, Barnhart, MO built?

6821 Old State Route 21, Barnhart, MO was built in 1964, making it 62 years old. The building has 1 story.

What schools serve 6821 Old State Route 21, Barnhart, MO?

6821 Old State Route 21, Barnhart, MO is assigned to Antonia Elementary School (elementary), rated A; Antonia Middle School (middle), rated A; Seckman High School (high), rated B+. All sit in Fox C-6 School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 6821 Old State Route 21, Barnhart, MO compare to other homes in Barnhart 63012?

Among the 3,912 homes in Barnhart 63012, it is worth more than 20% of them ($224,347 against a typical $278,315), its price per square foot is higher than 26% of them ($184 against a typical $221), it is bigger than 41% of them (1,216 ft² against a typical 1,318 ft²), its lot is bigger than 68% of them (0.91 ac against a typical 0.32 ac) and it is newer than 10% of them (1964 against a typical 1986). Measured against all of Jefferson County, it is worth more than 27% 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 6821 Old State Route 21, Barnhart, MO?

The 2025 property tax bill for 6821 Old State Route 21, Barnhart, MO was $1,250. The county assessed it at $28,000.

More homes on Old State Route 21

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