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Single Family ResidenceResidential
$102,831$110 / 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 69How 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
Last sold for $55,250 on May 6, 2019

640 1ST ST SE

HARTLEY, IA 51346
1
Beds
1
Baths
936 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.
0.26 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.
1
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$103K
$71K low$135K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$55,250 · May 6, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,100 (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.$78,370 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$10,850
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$67,520
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$68,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$78,370

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.0.26
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.Metal
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
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.DeckShed · 320 ft²Patio · 144 ft²Porch · 160 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.

M
Hartley-Melvin-Sanborn Middle SchoolA-
Middle · Grades 7–8 · 0.2 mi
E
Hartley-Melvin-Sanborn Elementary SchoolB+
Elementary · Grades PK–4 · 0.8 mi
H
Hartley-Melvin-Sanborn High SchoolC+
High · Grades 9–12 · 0.9 mi

District: Hartley-Melvin-Sanborn Community School District

Neighborhood · ZIP 51346These 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.132
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.90
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.15

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.90%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.16%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.10%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.7%
PopulationHow many people live in this area.2,716
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.18 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$56,470
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$69,610
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%

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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

640 1st St Se 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 74% of homes in O'Brien County
  • Smaller than 91% of homes in O'Brien County
  • Older than 88% of homes in O'Brien County

What homes are worth in Hartley 51346

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

This home
$37K$669K

This home is worth more than 30% of homes in Hartley 51346.

How it measures up in Hartley 51346

The dot is this home. The mark in the middle is the typical home in Hartley 51346.

Estimated value$102,831
CheaperTypical $144,770Pricier

Pricier than 30% of homes nearby

Price per ft²$110
CheaperTypical $103Pricier

Pricier than 54% of homes nearby

Living area936 ft²
SmallerTypical 1,476 ft²Bigger

Bigger than 11% of homes nearby

Lot size0.26 ac
SmallerTypical 0.29 acBigger

Bigger than 43% of homes nearby

Year built1900
OlderTypical 1940Newer

Newer than 15% of homes nearby

How 640 1st St Se ranks against every home in each area.
MeasureThis homeHartley 51346O'Brien County
Estimated valuepricier than$102,83130% of homes26% of homes
Price per ft²pricier than$11054% of homes51% of homes
Living areabigger than936 ft²11% of homes9% of homes
Lot sizebigger than0.26 ac43% of homes41% of homes
Year builtnewer than190015% of homes12% of homes

About 640 1st St Se

How much is 640 1st St Se, Hartley, IA worth?

The TopHap Estimate for 640 1st St Se, Hartley, IA is $102,831 as of Sep 24, 2026. The likely range is $70,947 to $134,715. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 640 1st St Se, Hartley, IA last sell?

640 1st St Se, Hartley, IA last sold on May 6, 2019 for $55,250, according to the county's recorded deed.

How big is 640 1st St Se, Hartley, IA?

640 1st St Se, Hartley, IA has 1 bedrooms, 1 bathrooms, 936 square feet of living space and a 0.26-acre lot.

When was 640 1st St Se, Hartley, IA built?

640 1st St Se, Hartley, IA was built in 1900, making it 126 years old. It is a a-frame home. The building has 1 story.

What schools serve 640 1st St Se, Hartley, IA?

640 1st St Se, Hartley, IA is assigned to Hartley-Melvin-Sanborn Middle School (middle), rated A-; Hartley-Melvin-Sanborn Elementary School (elementary), rated B+; Hartley-Melvin-Sanborn High School (high), rated C+. All sit in Hartley-Melvin-Sanborn Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 640 1st St Se, Hartley, IA compare to other homes in Hartley 51346?

Among the 1,097 homes in Hartley 51346, it is worth more than 30% of them ($102,831 against a typical $144,770), its price per square foot is higher than 54% of them ($110 against a typical $103), it is bigger than 11% of them (936 ft² against a typical 1,476 ft²), its lot is bigger than 43% of them (0.26 ac against a typical 0.29 ac) and it is newer than 15% of them (1900 against a typical 1940). Measured against all of O'Brien County, it is worth more than 26% 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 640 1st St Se, Hartley, IA?

The 2025 property tax bill for 640 1st St Se, Hartley, IA was $1,100. The county assessed it at $78,370.

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