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Residential (General/Single)Residential
$414,229$156 / 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 Aug 30, 2026
Last sold for $210,000 on Sep 15, 2009

20446 145TH ST

MONONA, IA 52159
5
Beds
3.8
Baths
2,656 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.
7.63 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.
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

$414K
$321K low$508K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$210,000 · Sep 15, 2009

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,756 (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.$241,892 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$13,847
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$228,045
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$199,614
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$241,892

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%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

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)
StyleThe architectural style of the home, such as ranch or colonial.A-Frame
CountyCLAYTON
Lot (acres)The size of the land the home sits on, from county records.7.63
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.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 · 220 ft²Patio · 220 ft²Porch · 72 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
Mfl Marmac Elementary SchoolB-
Elementary · Grades PK–3 · 2.3 mi
H
Mfl Marmac High SchoolC-
High · Grades 9–12 · 2.3 mi
M
Mfl Marmac Middle SchoolB+
Middle · Grades 6–8 · 10.8 mi

District: Mfl Marmac Community School District

Neighborhood · ZIP 52159These 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.118
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.77
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.11

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.88%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.10%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.2,409
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.35 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$62,290
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$86,692
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.34 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

20446 145th 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 98% of homes in Monona 52159
  • Costs more per square foot than 77% of homes in Monona 52159
  • Bigger than 94% of homes in Monona 52159
  • Has a bigger lot than 84% of homes in Monona 52159
  • Older than 80% of homes in Monona 52159

What homes are worth in Monona 52159

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

This home
$55K$427K

This home is worth more than 98% of homes in Monona 52159.

How it measures up in Monona 52159

The dot is this home. The mark in the middle is the typical home in Monona 52159.

Estimated value$414,229
CheaperTypical $163,305Pricier

Pricier than 98% of homes nearby

Price per ft²$156
CheaperTypical $106Pricier

Pricier than 77% of homes nearby

Living area2,656 ft²
SmallerTypical 1,568 ft²Bigger

Bigger than 94% of homes nearby

Lot size7.63 ac
SmallerTypical 0.38 acBigger

Bigger than 84% of homes nearby

Year built1900
OlderTypical 1947Newer

Newer than 20% of homes nearby

How 20446 145th St ranks against every home in each area.
MeasureThis homeMonona 52159Clayton County
Estimated valuepricier than$414,22998% of homes88% of homes
Price per ft²pricier than$15677% of homes61% of homes
Living areabigger than2,656 ft²94% of homes94% of homes
Lot sizebigger than7.63 ac84% of homes79% of homes
Year builtnewer than190020% of homes25% of homes

About 20446 145th St

How much is 20446 145th St, Monona, IA worth?

The TopHap Estimate for 20446 145th St, Monona, IA is $414,229 as of Aug 30, 2026. The likely range is $320,821 to $507,637. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20446 145th St, Monona, IA last sell?

20446 145th St, Monona, IA last sold on Sep 15, 2009 for $210,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 20446 145th St, Monona, IA?

20446 145th St, Monona, IA has 5 bedrooms, 3.8 bathrooms, 2,656 square feet of living space and a 7.63-acre lot.

When was 20446 145th St, Monona, IA built?

20446 145th St, Monona, IA was built in 1900, making it 126 years old. It is a a-frame home. The building has 2 stories.

What schools serve 20446 145th St, Monona, IA?

20446 145th St, Monona, IA is assigned to Mfl Marmac Elementary School (elementary), rated B-; Mfl Marmac High School (high), rated C-; Mfl Marmac Middle School (middle), rated B+. All sit in Mfl Marmac Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20446 145th St, Monona, IA compare to other homes in Monona 52159?

Among the 961 homes in Monona 52159, it is worth more than 98% of them ($414,229 against a typical $163,305), its price per square foot is higher than 77% of them ($156 against a typical $106), it is bigger than 94% of them (2,656 ft² against a typical 1,568 ft²), its lot is bigger than 84% of them (7.63 ac against a typical 0.38 ac) and it is newer than 20% of them (1900 against a typical 1947). Measured against all of Clayton County, it is worth more than 88% 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 20446 145th St, Monona, IA?

The 2025 property tax bill for 20446 145th St, Monona, IA was $2,756. The county assessed it at $241,892.

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