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Single Family ResidenceResidential
$279,254$342 / 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 83How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $100,000 on May 1, 2021

509 MAIN ST

CLAYTON, IA 52049
1
Beds
1
Baths
816 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.
0.45 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.
3
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

$279K
$232K low$327K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$100,000 · May 1, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,318 (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.$127,218 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$32,793
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$94,425
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$108,497
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$127,218

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.18 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.minimal

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
StyleThe architectural style of the home, such as ranch or colonial.A-Frame
CountyClayton
Lot (acres)The size of the land the home sits on, from county records.0.45
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.Concrete
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air
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 · 192 ft²Patio · 133 ft²

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

E
Clayton Ridge Elementary SchoolB
Elementary · Grades PK–5 · 5.2 mi
M
Clayton Ridge Middle SchoolC+
Middle · Grades 6–8 · 8.5 mi
H
Clayton Ridge High SchoolB
High · Grades 9–12 · 8.5 mi

District: Clayton Ridge Community School District

Neighborhood · ZIP 52049These 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.147
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 100.16

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.72%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.13%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.18%
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.1,857
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.24 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$70,445
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$82,434
Average tempThe average temperature here across a full year.46°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

509 Main 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 more than 82% of homes in Garnavillo 52049
  • Costs more per square foot than 94% of homes in Garnavillo 52049
  • Smaller than 92% of homes in Clayton County
  • Newer than 65% of homes in Garnavillo 52049

What homes are worth in Garnavillo 52049

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

This home
$55K$674K

This home is worth more than 82% of homes in Garnavillo 52049.

How it measures up in Garnavillo 52049

The dot is this home. The mark in the middle is the typical home in Garnavillo 52049.

Estimated value$279,254
CheaperTypical $165,833Pricier

Pricier than 82% of homes nearby

Price per ft²$342
CheaperTypical $130Pricier

Pricier than 94% of homes nearby

Living area816 ft²
SmallerTypical 1,406 ft²Bigger

Bigger than 13% of homes nearby

Lot size0.45 ac
SmallerTypical 0.41 acBigger

Bigger than 52% of homes nearby

Year built1977
OlderTypical 1964Newer

Newer than 65% of homes nearby

How 509 Main St ranks against every home in each area.
MeasureThis homeGarnavillo 52049Clayton County
Estimated valuepricier than$279,25482% of homes71% of homes
Price per ft²pricier than$34294% of homes94% of homes
Living areabigger than816 ft²13% of homes8% of homes
Lot sizebigger than0.45 ac52% of homes45% of homes
Year builtnewer than197765% of homes65% of homes

About 509 Main St

How much is 509 Main St, Clayton, IA worth?

The TopHap Estimate for 509 Main St, Clayton, IA is $279,254 as of Aug 30, 2026. The likely range is $231,689 to $326,819. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 509 Main St, Clayton, IA last sell?

509 Main St, Clayton, IA last sold on May 1, 2021 for $100,000, according to the county's recorded deed.

How big is 509 Main St, Clayton, IA?

509 Main St, Clayton, IA has 1 bedrooms, 1 bathrooms, 816 square feet of living space and a 0.45-acre lot.

When was 509 Main St, Clayton, IA built?

509 Main St, Clayton, IA was built in 1977, making it 49 years old. It is a a-frame home. The building has 1 story.

What schools serve 509 Main St, Clayton, IA?

509 Main St, Clayton, IA is assigned to Clayton Ridge Elementary School (elementary), rated B; Clayton Ridge Middle School (middle), rated C+; Clayton Ridge High School (high), rated B. All sit in Clayton Ridge Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 509 Main St, Clayton, IA compare to other homes in Garnavillo 52049?

Among the 774 homes in Garnavillo 52049, it is worth more than 82% of them ($279,254 against a typical $165,833), its price per square foot is higher than 94% of them ($342 against a typical $130), it is bigger than 13% of them (816 ft² against a typical 1,406 ft²), its lot is bigger than 52% of them (0.45 ac against a typical 0.41 ac) and it is newer than 65% of them (1977 against a typical 1964). Measured against all of Clayton County, it is worth more than 71% 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 Main St, Clayton, IA?

The 2024 property tax bill for 509 Main St, Clayton, IA was $1,318. The county assessed it at $127,218.

More homes on Main St

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Assigned schools

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