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Single Family ResidenceResidential
$210,032$122 / 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 79How 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

823 W 21ST ST

CARROLL, IA 51401
3
Beds
2.5
Baths
1,719 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.
0.2 ac
Lot SizeThe size of the land the home sits on, from county records.
1967
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

$210K
$167K low$253K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,500 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$249,440 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$23,890
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$225,550
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$249,440
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$249,440

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyCARROLL
Lot (acres)The size of the land the home sits on, from county records.0.20
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.Block (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Yes
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.Deck · 380 ft²Patio · 296 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.

E
Fairview Elementary School
Elementary · Grades PK–2 · 0.9 mi
H
Carroll High SchoolB
High · Grades 9–12 · 1.0 mi
M
Carroll Middle SchoolC-
Middle · Grades 5–8 · 1.2 mi

District: Carroll Community School District

Neighborhood · ZIP 51401These 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.112
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.16

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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.17%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.5%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.6%
PopulationHow many people live in this area.12,365
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.72 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$70,490
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$87,497
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.33 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.61%

Owner Tools

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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

823 W 21st 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.

  • Costs less per square foot than 71% of homes in Carroll 51401
  • Bigger than 67% of homes in Carroll 51401

What homes are worth in Carroll 51401

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

This home
$66K$727K

This home is worth more than 46% of homes in Carroll 51401.

How it measures up in Carroll 51401

The dot is this home. The mark in the middle is the typical home in Carroll 51401.

Estimated value$210,032
CheaperTypical $221,590Pricier

Pricier than 46% of homes nearby

Price per ft²$122
CheaperTypical $158Pricier

Pricier than 29% of homes nearby

Living area1,719 ft²
SmallerTypical 1,440 ft²Bigger

Bigger than 67% of homes nearby

Lot size0.2 ac
SmallerTypical 0.2 acBigger

Bigger than 57% of homes nearby

Year built1967
OlderTypical 1965Newer

Newer than 52% of homes nearby

How 823 W 21st St ranks against every home in each area.
MeasureThis homeCarroll 51401Carroll County
Estimated valuepricier than$210,03246% of homes55% of homes
Price per ft²pricier than$12229% of homes43% of homes
Living areabigger than1,719 ft²67% of homes66% of homes
Lot sizebigger than0.2 ac57% of homes50% of homes
Year builtnewer than196752% of homes59% of homes

About 823 W 21st St

How much is 823 W 21st St, Carroll, IA worth?

The TopHap Estimate for 823 W 21st St, Carroll, IA is $210,032 as of Sep 24, 2026. The likely range is $166,778 to $253,286. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 823 W 21st St, Carroll, IA last sell?

823 W 21st St, Carroll, IA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 823 W 21st St, Carroll, IA?

823 W 21st St, Carroll, IA has 3 bedrooms, 2.5 bathrooms, 1,719 square feet of living space and a 0.20-acre lot.

When was 823 W 21st St, Carroll, IA built?

823 W 21st St, Carroll, IA was built in 1967, making it 59 years old. The building has 1 story.

What schools serve 823 W 21st St, Carroll, IA?

823 W 21st St, Carroll, IA is assigned to Fairview Elementary School (elementary); Carroll High School (high), rated B; Carroll Middle School (middle), rated C-. All sit in Carroll Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 823 W 21st St, Carroll, IA compare to other homes in Carroll 51401?

Among the 4,694 homes in Carroll 51401, it is worth more than 46% of them ($210,032 against a typical $221,590), its price per square foot is higher than 29% of them ($122 against a typical $158), it is bigger than 67% of them (1,719 ft² against a typical 1,440 ft²), its lot is bigger than 57% of them (0.2 ac against a typical 0.2 ac) and it is newer than 52% of them (1967 against a typical 1965). Measured against all of Carroll County, it is worth more than 55% 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 823 W 21st St, Carroll, IA?

The 2026 property tax bill for 823 W 21st St, Carroll, IA was $2,500. The county assessed it at $249,440.

More homes on W 21st St

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