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Residential (General/Single)Residential
$131,672$77 / 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 79How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

830 WALNUT ST

MAPLETON, IA 51034
5
Beds
3 / 1
Baths
1,700 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.
0.94 ac
Lot SizeThe size of the land the home sits on, from county records.
1991
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.
5
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$132K
$104K low$160K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,038 (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.$338,960 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$29,059
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$309,901
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$305,136
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$338,960

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.0.94
ConstructionThe main material the home's frame and walls are built from.Brick
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.Mixed
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.Patio · 520 ft²Porch · 45 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.

E
Mapleton Elementary SchoolA-
Elementary · Grades PK–5 · 0.3 mi
H
Maple Valley-Anthon Oto High SchoolC
High · Grades 9–12 · 0.3 mi
M
Mvao Middle SchoolA-
Middle · Grades 6–8 · 16.1 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

830 Walnut 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.

  • Bigger than 72% of homes in Monona County
  • Has a bigger lot than 69% of homes in Monona County
  • Newer than 82% of homes in Mapleton 51034

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
$32K$504K

This home is worth more than 58% 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$131,672
CheaperTypical $113,940Pricier

Pricier than 58% of homes nearby

Price per ft²$77
CheaperTypical $90Pricier

Pricier than 41% of homes nearby

Living area1,700 ft²
SmallerTypical 1,436 ft²Bigger

Bigger than 69% of homes nearby

Lot size0.94 ac
SmallerTypical 0.31 acBigger

Bigger than 67% of homes nearby

Year built1991
OlderTypical 1948Newer

Newer than 82% of homes nearby

How 830 Walnut St ranks against every home in each area.
MeasureThis homeMapleton 51034Monona County
Estimated valuepricier than$131,67258% of homes62% of homes
Price per ft²pricier than$7741% of homes43% of homes
Living areabigger than1,700 ft²69% of homes72% of homes
Lot sizebigger than0.94 ac67% of homes69% of homes
Year builtnewer than199182% of homes80% of homes

About 830 Walnut St

How much is 830 Walnut St, Mapleton, IA worth?

The TopHap Estimate for 830 Walnut St, Mapleton, IA is $131,672 as of Aug 30, 2026. The likely range is $103,593 to $159,751. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 830 Walnut St, Mapleton, IA last sell?

830 Walnut St, Mapleton, IA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 830 Walnut St, Mapleton, IA?

830 Walnut St, Mapleton, IA has 5 bedrooms, 3 bathrooms, 1,700 square feet of living space and a 0.94-acre lot.

When was 830 Walnut St, Mapleton, IA built?

830 Walnut St, Mapleton, IA was built in 1991, making it 35 years old. The building has 1 story.

What schools serve 830 Walnut St, Mapleton, IA?

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

How does 830 Walnut St, Mapleton, IA compare to other homes in Mapleton 51034?

Among the 914 homes in Mapleton 51034, it is worth more than 58% of them ($131,672 against a typical $113,940), its price per square foot is higher than 41% of them ($77 against a typical $90), it is bigger than 69% of them (1,700 ft² against a typical 1,436 ft²), its lot is bigger than 67% of them (0.94 ac against a typical 0.31 ac) and it is newer than 82% of them (1991 against a typical 1948). Measured against all of Monona County, it is worth more than 62% 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 830 Walnut St, Mapleton, IA?

The 2025 property tax bill for 830 Walnut St, Mapleton, IA was $5,038. The county assessed it at $338,960.

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