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Rural ResidenceResidential
$253,110$126 / 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 77How 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

644 490TH ST

ALTA, IA 51002
5
Beds
2
Baths
2,016 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.
38.49 ac
Lot SizeThe size of the land the home sits on, from county records.
1974
Year BuiltThe year the home was originally built, according to county records.
2
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

$253K
$194K low$312K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,034 (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.$354,650 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$71,710
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$282,940
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$331,470
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$354,650

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.38 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Rural Residence
CountyBUENA VISTA
Lot (acres)The size of the land the home sits on, from county records.38.49
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.Yes
CoolingThe type of cooling or air conditioning in the home.Central
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 · 409 ft²Patio · 409 ft²Porch · 328 ft²

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

H
Alta-Aurelia High SchoolC
High · Grades 9–12 · 9.7 mi
E
Alta Elementary SchoolA+
Elementary · Grades PK–4 · 9.7 mi
M
Alta-Aurelia Middle SchoolB+
Middle · Grades 5–8 · 9.8 mi

District: Alta-Aurelia Community School District

Neighborhood · ZIP 51002These 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.146
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.94
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.12

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.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.5%
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.3,500
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.30 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$80,469
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$94,842
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.32 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

644 490th 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 80% of homes in Buena Vista County
  • Bigger than 82% of homes in Buena Vista County
  • Has a bigger lot than 96% of homes in Buena Vista County
  • Newer than 76% of homes in Buena Vista County

What homes are worth in Alta 51002

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

This home
$51K$434K

This home is worth more than 78% of homes in Alta 51002.

How it measures up in Alta 51002

The dot is this home. The mark in the middle is the typical home in Alta 51002.

Estimated value$253,110
CheaperTypical $175,392Pricier

Pricier than 78% of homes nearby

Price per ft²$126
CheaperTypical $117Pricier

Pricier than 56% of homes nearby

Living area2,016 ft²
SmallerTypical 1,542 ft²Bigger

Bigger than 81% of homes nearby

Lot size38.49 ac
SmallerTypical 0.26 acBigger

Bigger than 94% of homes nearby

Year built1974
OlderTypical 1950Newer

Newer than 74% of homes nearby

How 644 490th St ranks against every home in each area.
MeasureThis homeAlta 51002Buena Vista County
Estimated valuepricier than$253,11078% of homes80% of homes
Price per ft²pricier than$12656% of homes59% of homes
Living areabigger than2,016 ft²81% of homes82% of homes
Lot sizebigger than38.49 ac94% of homes96% of homes
Year builtnewer than197474% of homes76% of homes

About 644 490th St

How much is 644 490th St, Alta, IA worth?

The TopHap Estimate for 644 490th St, Alta, IA is $253,110 as of Sep 24, 2026. The likely range is $193,995 to $312,225. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 644 490th St, Alta, IA last sell?

644 490th St, Alta, IA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 644 490th St, Alta, IA?

644 490th St, Alta, IA has 5 bedrooms, 2 bathrooms, 2,016 square feet of living space and a 38.49-acre lot.

When was 644 490th St, Alta, IA built?

644 490th St, Alta, IA was built in 1974, making it 52 years old. The building has 2 stories.

What schools serve 644 490th St, Alta, IA?

644 490th St, Alta, IA is assigned to Alta-Aurelia High School (high), rated C; Alta Elementary School (elementary), rated A+; Alta-Aurelia Middle School (middle), rated B+. All sit in Alta-Aurelia Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 644 490th St, Alta, IA compare to other homes in Alta 51002?

Among the 1,086 homes in Alta 51002, it is worth more than 78% of them ($253,110 against a typical $175,392), its price per square foot is higher than 56% of them ($126 against a typical $117), it is bigger than 81% of them (2,016 ft² against a typical 1,542 ft²), its lot is bigger than 94% of them (38.49 ac against a typical 0.26 ac) and it is newer than 74% of them (1974 against a typical 1950). Measured against all of Buena Vista County, it is worth more than 80% 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 644 490th St, Alta, IA?

The 2025 property tax bill for 644 490th St, Alta, IA was $4,034. The county assessed it at $354,650.

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