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Single Family ResidenceResidential
$146,462$104 / 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 84How 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 $105,000 on Jun 16, 2021

509 8TH AVE

SHELDON, IA 51201
4
Beds
2 / 2
Baths
1,404 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.
0.38 ac
Lot SizeThe size of the land the home sits on, from county records.
1901
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
9
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$146K
$122K low$171K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$105,000 · Jun 16, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,532 (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.$176,840 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$36,130
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$140,710
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$148,990
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$176,840

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.A-Frame
CountyO'BRIEN
Lot (acres)The size of the land the home sits on, from county records.0.38
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Radiant
CoolingThe type of cooling or air conditioning in the home.None
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.Deck · 160 ft²Patio · 352 ft²Porch · 84 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.

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

E
East Elementary SchoolA+
Elementary · Grades PK–4 · 0.3 mi
H
Sheldon High SchoolB
High · Grades 9–12 · 0.5 mi
M
Sheldon Middle SchoolA
Middle · Grades 5–8 · 0.8 mi

District: Sheldon Community School District

Neighborhood · ZIP 51201These 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.105
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.80
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.20

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.18%
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.0.8%
PopulationHow many people live in this area.6,264
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.56 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$70,827
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$84,717
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.29 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

509 8th Ave 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 67% of homes in Sheldon 51201
  • Costs less per square foot than 68% of homes in Sheldon 51201
  • Has a bigger lot than 66% of homes in Sheldon 51201
  • Older than 90% of homes in Sheldon 51201

What homes are worth in Sheldon 51201

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

This home
$50K$562K

This home is worth more than 33% of homes in Sheldon 51201.

How it measures up in Sheldon 51201

The dot is this home. The mark in the middle is the typical home in Sheldon 51201.

Estimated value$146,462
CheaperTypical $196,983Pricier

Pricier than 33% of homes nearby

Price per ft²$104
CheaperTypical $136Pricier

Pricier than 32% of homes nearby

Living area1,404 ft²
SmallerTypical 1,499 ft²Bigger

Bigger than 43% of homes nearby

Lot size0.38 ac
SmallerTypical 0.28 acBigger

Bigger than 66% of homes nearby

Year built1901
OlderTypical 1957Newer

Newer than 10% of homes nearby

How 509 8th Ave ranks against every home in each area.
MeasureThis homeSheldon 51201O'Brien County
Estimated valuepricier than$146,46233% of homes46% of homes
Price per ft²pricier than$10432% of homes48% of homes
Living areabigger than1,404 ft²43% of homes42% of homes
Lot sizebigger than0.38 ac66% of homes60% of homes
Year builtnewer than190110% of homes12% of homes

About 509 8th Ave

How much is 509 8th Ave, Sheldon, IA worth?

The TopHap Estimate for 509 8th Ave, Sheldon, IA is $146,462 as of Oct 21, 2026. The likely range is $122,327 to $170,597. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 509 8th Ave, Sheldon, IA last sell?

509 8th Ave, Sheldon, IA last sold on Jun 16, 2021 for $105,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 509 8th Ave, Sheldon, IA?

509 8th Ave, Sheldon, IA has 4 bedrooms, 2 bathrooms, 1,404 square feet of living space and a 0.38-acre lot.

When was 509 8th Ave, Sheldon, IA built?

509 8th Ave, Sheldon, IA was built in 1901, making it 125 years old. It is a a-frame home. The building has 1 story.

What schools serve 509 8th Ave, Sheldon, IA?

509 8th Ave, Sheldon, IA is assigned to East Elementary School (elementary), rated A+; Sheldon High School (high), rated B; Sheldon Middle School (middle), rated A. All sit in Sheldon Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 509 8th Ave, Sheldon, IA compare to other homes in Sheldon 51201?

Among the 2,358 homes in Sheldon 51201, it is worth more than 33% of them ($146,462 against a typical $196,983), its price per square foot is higher than 32% of them ($104 against a typical $136), it is bigger than 43% of them (1,404 ft² against a typical 1,499 ft²), its lot is bigger than 66% of them (0.38 ac against a typical 0.28 ac) and it is newer than 10% of them (1901 against a typical 1957). Measured against all of O'Brien County, it is worth more than 46% 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 509 8th Ave, Sheldon, IA?

The 2025 property tax bill for 509 8th Ave, Sheldon, IA was $2,532. The county assessed it at $176,840.

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