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Residential (General/Single)Residential
$91,117$53 / 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 82How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $1,000 on Jun 6, 2022

811 SIOUX ST

MAPLETON, IA 51034
3
Beds
1
Baths
1,734 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.
0.47 ac
Lot SizeThe size of the land the home sits on, from county records.
1920
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$91K
$75K low$108K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,000 · Jun 6, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$896 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$90,559 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$14,642
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$75,917
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$78,215
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$90,559

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

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Residential (General/Single)
CountyMONONA
Lot (acres)The size of the land the home sits on, from county records.0.47
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.Block (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
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.DeckPatio · 418 ft²Porch · 256 ft²

Transaction History(2)

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.

E
Mapleton Elementary SchoolB
Elementary · Grades PK–5 · 0.5 mi
H
Maple Valley-Anthon Oto High SchoolC-
High · Grades 9–12 · 0.5 mi
M
Mvao Middle School
Middle · Grades 6–8 · 15.5 mi

District: Maple Valley-Anthon Oto Community School District

Neighborhood · ZIP 51034These 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.126
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.98
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.89%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.11%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.7%
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.1,716
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.15 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$63,772
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$74,042
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.30 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

811 Sioux 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.

  • Costs less per square foot than 82% of homes in Mapleton 51034
  • Bigger than 73% of homes in Monona County

What homes are worth in Mapleton 51034

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

This home
$31K$418K

This home is worth more than 40% of homes in Mapleton 51034.

How it measures up in Mapleton 51034

The dot is this home. The mark in the middle is the typical home in Mapleton 51034.

Estimated value$91,117
CheaperTypical $108,626Pricier

Pricier than 40% of homes nearby

Price per ft²$53
CheaperTypical $84Pricier

Pricier than 18% of homes nearby

Living area1,734 ft²
SmallerTypical 1,431 ft²Bigger

Bigger than 72% of homes nearby

Lot size0.47 ac
SmallerTypical 0.32 acBigger

Bigger than 60% of homes nearby

Year built1920
OlderTypical 1948Newer

Newer than 43% of homes nearby

How 811 Sioux St ranks against every home in each area.
MeasureThis homeMapleton 51034Monona County
Estimated valuepricier than$91,11740% of homes45% of homes
Price per ft²pricier than$5318% of homes22% of homes
Living areabigger than1,734 ft²72% of homes73% of homes
Lot sizebigger than0.47 ac60% of homes61% of homes
Year builtnewer than192043% of homes46% of homes

About 811 Sioux St

How much is 811 Sioux St, Mapleton, IA worth?

The TopHap Estimate for 811 Sioux St, Mapleton, IA is $91,117 as of Oct 21, 2026. The likely range is $74,698 to $107,536. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 811 Sioux St, Mapleton, IA last sell?

811 Sioux St, Mapleton, IA last sold on Jun 6, 2022 for $1,000, according to the county's recorded deed.

How big is 811 Sioux St, Mapleton, IA?

811 Sioux St, Mapleton, IA has 3 bedrooms, 1 bathrooms, 1,734 square feet of living space and a 0.47-acre lot.

When was 811 Sioux St, Mapleton, IA built?

811 Sioux St, Mapleton, IA was built in 1920, making it 106 years old. The building has 1 story.

What schools serve 811 Sioux St, Mapleton, IA?

811 Sioux St, Mapleton, IA is assigned to Mapleton Elementary School (elementary), rated B; Maple Valley-Anthon Oto High School (high), rated C-; Mvao Middle School (middle). All sit in Maple Valley-Anthon Oto Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 811 Sioux St, Mapleton, IA compare to other homes in Mapleton 51034?

Among the 914 homes in Mapleton 51034, it is worth more than 40% of them ($91,117 against a typical $108,626), its price per square foot is higher than 18% of them ($53 against a typical $84), it is bigger than 72% of them (1,734 ft² against a typical 1,431 ft²), its lot is bigger than 60% of them (0.47 ac against a typical 0.32 ac) and it is newer than 43% of them (1920 against a typical 1948). Measured against all of Monona County, it is worth more than 45% 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 811 Sioux St, Mapleton, IA?

The 2026 property tax bill for 811 Sioux St, Mapleton, IA was $896. The county assessed it at $90,559.

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