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Single Family ResidenceResidential
$187,512$136 / 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 80How 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

509 SW MILLS ST

GREENFIELD, IA 50849
4
Beds
3.5
Baths
1,376 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.
0.27 ac
Lot SizeThe size of the land the home sits on, from county records.
1969
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.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$188K
$149K low$226K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,702 (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.$205,010 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$26,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$178,310
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$178,840
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$205,010

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyADAIR
Lot (acres)The size of the land the home sits on, from county records.0.27
ConstructionThe main material the home's frame and walls are built from.Steel Frame
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 · 150 ft²Porch · 176 ft²

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

E
Nodaway Valley Elementary SchoolB
Elementary · Grades PK–5 · 0.6 mi
H
Nodaway Valley High SchoolC+
High · Grades 9–12 · 0.7 mi
M
Nodaway Valley Middle SchoolB+
Middle · Grades 6–8 · 5.2 mi

District: Nodaway Valley Community School District

Neighborhood · ZIP 50849These 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.140
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.101
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.14

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.13%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.0%
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.3,167
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.28 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$58,678
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$74,482
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.35 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.59%

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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 Sw Mills 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.

  • Has a smaller lot than 65% of homes in Adair County
  • Newer than 66% of homes in Greenfield 50849

What homes are worth in Greenfield 50849

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

This home
$78K$622K

This home is worth more than 47% of homes in Greenfield 50849.

How it measures up in Greenfield 50849

The dot is this home. The mark in the middle is the typical home in Greenfield 50849.

Estimated value$187,512
CheaperTypical $191,696Pricier

Pricier than 47% of homes nearby

Price per ft²$136
CheaperTypical $136Pricier

Pricier than 51% of homes nearby

Living area1,376 ft²
SmallerTypical 1,492 ft²Bigger

Bigger than 41% of homes nearby

Lot size0.27 ac
SmallerTypical 0.28 acBigger

Bigger than 48% of homes nearby

Year built1969
OlderTypical 1950Newer

Newer than 66% of homes nearby

How 509 Sw Mills St ranks against every home in each area.
MeasureThis homeGreenfield 50849Adair County
Estimated valuepricier than$187,51247% of homes50% of homes
Price per ft²pricier than$13651% of homes53% of homes
Living areabigger than1,376 ft²41% of homes43% of homes
Lot sizebigger than0.27 ac48% of homes35% of homes
Year builtnewer than196966% of homes62% of homes

About 509 Sw Mills St

How much is 509 Sw Mills St, Greenfield, IA worth?

The TopHap Estimate for 509 Sw Mills St, Greenfield, IA is $187,512 as of Sep 24, 2026. The likely range is $149,186 to $225,838. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 509 Sw Mills St, Greenfield, IA last sell?

509 Sw Mills St, Greenfield, IA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 509 Sw Mills St, Greenfield, IA?

509 Sw Mills St, Greenfield, IA has 4 bedrooms, 3.5 bathrooms, 1,376 square feet of living space and a 0.27-acre lot.

When was 509 Sw Mills St, Greenfield, IA built?

509 Sw Mills St, Greenfield, IA was built in 1969, making it 57 years old. The building has 1 story.

What schools serve 509 Sw Mills St, Greenfield, IA?

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

How does 509 Sw Mills St, Greenfield, IA compare to other homes in Greenfield 50849?

Among the 1,178 homes in Greenfield 50849, it is worth more than 47% of them ($187,512 against a typical $191,696), its price per square foot is higher than 51% of them ($136 against a typical $136), it is bigger than 41% of them (1,376 ft² against a typical 1,492 ft²), its lot is bigger than 48% of them (0.27 ac against a typical 0.28 ac) and it is newer than 66% of them (1969 against a typical 1950). Measured against all of Adair County, it is worth more than 50% 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 Sw Mills St, Greenfield, IA?

The 2025 property tax bill for 509 Sw Mills St, Greenfield, IA was $2,702. The county assessed it at $205,010.

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Assigned schools

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