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Single Family ResidenceResidential
$149,683$105 / 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 64How 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

320 IOWA ST

SAINT MARYS, IA 50241
5
Beds
1
Baths
1,428 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.
0.44 ac
Lot SizeThe size of the land the home sits on, from county records.
1921
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$150K
$96K low$203K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,802 (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.$213,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$19,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$194,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$128,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$213,900

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyWarren
Lot (acres)The size of the land the home sits on, from county records.0.44
ConstructionThe main material the home's frame and walls are built from.Brick
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.Central
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Patio · 180 ft²Porch · 96 ft²

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

E
Martensdale - St. Marys ElementaryA+
Elementary · Grades PK–6 · 4.7 mi
M
Martensdale - St. Marys Jr. / Sr. High SchoolC
Middle · Grades 7–12 · 4.7 mi

District: Martensdale-St. Marys Community School District

Neighborhood · ZIP 50241These 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.101
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.137
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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.9%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.16
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.27 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$91,964
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$121,191
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

320 Iowa 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 less than 94% of homes in Warren County
  • Costs less per square foot than 96% of homes in Warren County
  • Older than 90% of homes in Warren County

What homes are worth in Warren County

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

This home
$96K$647K

This home is worth more than 28% of homes in Warren County.

How it measures up in Warren County

The dot is this home. The mark in the middle is the typical home in Warren County.

Estimated value$149,683
CheaperTypical $297,542Pricier

Pricier than 6% of homes nearby

Price per ft²$105
CheaperTypical $203Pricier

Pricier than 4% of homes nearby

Living area1,428 ft²
SmallerTypical 1,516 ft²Bigger

Bigger than 43% of homes nearby

Lot size0.44 ac
SmallerTypical 0.29 acBigger

Bigger than 62% of homes nearby

Year built1921
OlderTypical 1991Newer

Newer than 10% of homes nearby

How 320 Iowa St ranks against every home in each area.
MeasureThis homeWarren County
Estimated valuepricier than$149,6836% of homes
Price per ft²pricier than$1054% of homes
Living areabigger than1,428 ft²43% of homes
Lot sizebigger than0.44 ac62% of homes
Year builtnewer than192110% of homes

About 320 Iowa St

How much is 320 Iowa St, Saint Marys, IA worth?

The TopHap Estimate for 320 Iowa St, Saint Marys, IA is $149,683 as of Sep 24, 2026. The likely range is $96,418 to $202,948. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 320 Iowa St, Saint Marys, IA last sell?

320 Iowa St, Saint Marys, IA last sold on Jan 6, 2012, according to the county's recorded deed.

How big is 320 Iowa St, Saint Marys, IA?

320 Iowa St, Saint Marys, IA has 5 bedrooms, 1 bathrooms, 1,428 square feet of living space and a 0.44-acre lot.

When was 320 Iowa St, Saint Marys, IA built?

320 Iowa St, Saint Marys, IA was built in 1921, making it 105 years old. The building has 2 stories.

What schools serve 320 Iowa St, Saint Marys, IA?

320 Iowa St, Saint Marys, IA is assigned to Martensdale - St. Marys Elementary (elementary), rated A+; Martensdale - St. Marys Jr. / Sr. High School (middle), rated C. All sit in Martensdale-St. Marys Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 320 Iowa St, Saint Marys, IA compare to other homes in Warren County?

Among the 21,310 homes in Warren County, it is worth more than 6% of them ($149,683 against a typical $297,542), its price per square foot is higher than 4% of them ($105 against a typical $203), it is bigger than 43% of them (1,428 ft² against a typical 1,516 ft²), its lot is bigger than 62% of them (0.44 ac against a typical 0.29 ac) and it is newer than 10% of them (1921 against a typical 1991). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 320 Iowa St, Saint Marys, IA?

The 2024 property tax bill for 320 Iowa St, Saint Marys, IA was $1,802. The county assessed it at $213,900.

More homes on Iowa St

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Assigned schools

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