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Single Family ResidenceResidential
$99,879$68 / 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 72How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $170,000 on Mar 1, 2021

821 CARROLL ST

BOONE, IA 50036
3
Beds
2 / 1
Baths
1,479 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.
0.25 ac
Lot SizeThe size of the land the home sits on, from county records.
1900
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.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$100K
$72K low$128K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$170,000 · Mar 1, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,926 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$209,470 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$26,680
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$182,790
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$114,792
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$209,470

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyBoone
Lot (acres)The size of the land the home sits on, from county records.0.25
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.Brick (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Metal
HeatingThe type of heating system in the home.Forced Air
CoolingThe type of cooling or air conditioning in the home.Central
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.Patio · 600 ft²Porch · 145 ft²

Transaction History(2)

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

Foreclosure Filings(1)

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

H
Boone High SchoolC
High · Grades 9–12 · 0.2 mi
M
Boone Middle SchoolD+
Middle · Grades 7–8 · 1.2 mi
E
Ledges Elementary School
Elementary · Grades PK–1 · 1.8 mi

District: Boone Community School District

Neighborhood · ZIP 50036These 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.135
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.96
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.12

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.20%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.8%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.16,402
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.85 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$74,710
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$87,597
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.34 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.61%

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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

821 Carroll 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 91% of homes in Boone 50036
  • Costs less per square foot than 96% of homes in Boone 50036
  • Has a smaller lot than 67% of homes in Boone County
  • Older than 76% of homes in Boone County

What homes are worth in Boone 50036

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

This home
$65K$618K

This home is worth more than 9% of homes in Boone 50036.

How it measures up in Boone 50036

The dot is this home. The mark in the middle is the typical home in Boone 50036.

Estimated value$99,879
CheaperTypical $190,718Pricier

Pricier than 9% of homes nearby

Price per ft²$68
CheaperTypical $143Pricier

Pricier than 4% of homes nearby

Living area1,479 ft²
SmallerTypical 1,392 ft²Bigger

Bigger than 57% of homes nearby

Lot size0.25 ac
SmallerTypical 0.25 acBigger

Bigger than 38% of homes nearby

Year built1900
OlderTypical 1949Newer

Newer than 26% of homes nearby

How 821 Carroll St ranks against every home in each area.
MeasureThis homeBoone 50036Boone County
Estimated valuepricier than$99,8799% of homes10% of homes
Price per ft²pricier than$684% of homes4% of homes
Living areabigger than1,479 ft²57% of homes53% of homes
Lot sizebigger than0.25 ac38% of homes33% of homes
Year builtnewer than190026% of homes24% of homes

About 821 Carroll St

How much is 821 Carroll St, Boone, IA worth?

The TopHap Estimate for 821 Carroll St, Boone, IA is $99,879 as of Oct 21, 2026. The likely range is $71,913 to $127,845. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 821 Carroll St, Boone, IA last sell?

821 Carroll St, Boone, IA last sold on Mar 1, 2021 for $170,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 821 Carroll St, Boone, IA?

821 Carroll St, Boone, IA has 3 bedrooms, 2 bathrooms, 1,479 square feet of living space and a 0.25-acre lot.

When was 821 Carroll St, Boone, IA built?

821 Carroll St, Boone, IA was built in 1900, making it 126 years old. The building has 2 stories.

What schools serve 821 Carroll St, Boone, IA?

821 Carroll St, Boone, IA is assigned to Boone High School (high), rated C; Boone Middle School (middle), rated D+; Ledges Elementary School (elementary). All sit in Boone Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 821 Carroll St, Boone, IA compare to other homes in Boone 50036?

Among the 6,760 homes in Boone 50036, it is worth more than 9% of them ($99,879 against a typical $190,718), its price per square foot is higher than 4% of them ($68 against a typical $143), it is bigger than 57% of them (1,479 ft² against a typical 1,392 ft²), its lot is bigger than 38% of them (0.25 ac against a typical 0.25 ac) and it is newer than 26% of them (1900 against a typical 1949). Measured against all of Boone County, it is worth more than 10% 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 821 Carroll St, Boone, IA?

The 2024 property tax bill for 821 Carroll St, Boone, IA was $1,926. The county assessed it at $209,470.

More homes on Carroll St

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Assigned schools

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