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Rural ResidenceResidential
$334,064$271 / 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 92How 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

8490 E HIGHWAY OO

HALLSVILLE, MO 65255
3
Beds
2.5
Baths
1,232 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.
18 ac
Lot SizeThe size of the land the home sits on, from county records.
1977
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
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

$334K
$308K low$360K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,539 (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.$24,277 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$2,959
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$21,318
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$24,277
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$129,570

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.57
100
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
31
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
79
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
71
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
4
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.197 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.1 percent flood zone

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Rural Residence
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountyBOONE
Lot (acres)The size of the land the home sits on, from county records.18.00
HeatingThe type of heating system in the home.Electric
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 · 360 ft²

Transaction History(1)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

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

M
Hallsville Middle SchoolA-
Middle · Grades 6–8 · 1.7 mi
H
Hallsville High SchoolB+
High · Grades 9–12 · 1.7 mi
E
Hallsville Primary School
Elementary · Grades PK–2 · 2.1 mi

District: Hallsville R-Iv School District

Neighborhood · ZIP 65255These 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.80
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.77
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.31

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.12%
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.5,332
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.95 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$70,665
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$90,267
Average tempThe average temperature here across a full year.54°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.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

8490 E Highway Oo 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.

  • Costs more per square foot than 94% of homes in Boone County
  • Smaller than 85% of homes in Hallsville 65255
  • Has a bigger lot than 93% of homes in Boone County
  • Older than 69% of homes in Hallsville 65255

What homes are worth in Hallsville 65255

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

This home
$152K$830K

This home is worth more than 45% of homes in Hallsville 65255.

How it measures up in Hallsville 65255

The dot is this home. The mark in the middle is the typical home in Hallsville 65255.

Estimated value$334,064
CheaperTypical $347,431Pricier

Pricier than 45% of homes nearby

Price per ft²$271
CheaperTypical $181Pricier

Pricier than 91% of homes nearby

Living area1,232 ft²
SmallerTypical 1,745 ft²Bigger

Bigger than 15% of homes nearby

Lot size18 ac
SmallerTypical 4.67 acBigger

Bigger than 82% of homes nearby

Year built1977
OlderTypical 1997Newer

Newer than 31% of homes nearby

How 8490 E Highway Oo ranks against every home in each area.
MeasureThis homeHallsville 65255Boone County
Estimated valuepricier than$334,06445% of homes51% of homes
Price per ft²pricier than$27191% of homes94% of homes
Living areabigger than1,232 ft²15% of homes16% of homes
Lot sizebigger than18 ac82% of homes93% of homes
Year builtnewer than197731% of homes32% of homes

About 8490 E Highway Oo

How much is 8490 E Highway Oo, Hallsville, MO worth?

The TopHap Estimate for 8490 E Highway Oo, Hallsville, MO is $334,064 as of Sep 24, 2026. The likely range is $307,647 to $360,481. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 8490 E Highway Oo, Hallsville, MO last sell?

8490 E Highway Oo, Hallsville, MO last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 8490 E Highway Oo, Hallsville, MO?

8490 E Highway Oo, Hallsville, MO has 3 bedrooms, 2.5 bathrooms, 1,232 square feet of living space and a 18.00-acre lot.

When was 8490 E Highway Oo, Hallsville, MO built?

8490 E Highway Oo, Hallsville, MO was built in 1977, making it 49 years old. It is a ranch home. The building has 1 story.

What schools serve 8490 E Highway Oo, Hallsville, MO?

8490 E Highway Oo, Hallsville, MO is assigned to Hallsville Middle School (middle), rated A-; Hallsville High School (high), rated B+; Hallsville Primary School (elementary). All sit in Hallsville R-Iv School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 8490 E Highway Oo, Hallsville, MO compare to other homes in Hallsville 65255?

Among the 1,992 homes in Hallsville 65255, it is worth more than 45% of them ($334,064 against a typical $347,431), its price per square foot is higher than 91% of them ($271 against a typical $181), it is bigger than 15% of them (1,232 ft² against a typical 1,745 ft²), its lot is bigger than 82% of them (18 ac against a typical 4.67 ac) and it is newer than 31% of them (1977 against a typical 1997). Measured against all of Boone County, it is worth more than 51% 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 8490 E Highway Oo, Hallsville, MO?

The 2025 property tax bill for 8490 E Highway Oo, Hallsville, MO was $1,539. The county assessed it at $24,277.

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