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Single Family ResidenceResidential
$81,626$85 / 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 63How 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

31977 ROUTE J40

BONAPARTE, IA 52620
4
Beds
3
Baths
960 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.
14.48 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.
9
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$82K
$51K low$112K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,330 (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.$140,340 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$62,830
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$77,510
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$129,170
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$140,340

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

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyVan Buren
Lot (acres)The size of the land the home sits on, from county records.14.48
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.Concrete
RoofThe main material covering the roof, such as asphalt shingle or tile.Metal
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.None
FireplaceWhether the home has a fireplace, and what kind.Yes
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 36 ft²Shed · 600 ft²

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

E
Harmony Center Elementary SchoolD
Elementary · Grades PK–6 · 1.8 mi
M
Van Buren County Middle/High SchoolC+
Middle · Grades 7–12 · 11.0 mi

District: Van Buren County Community School District

Neighborhood · ZIP 52620These 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.130
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.89
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.21

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.85%
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.9.7%
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.1,092
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.19 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$58,003
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$71,835
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.37 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

31977 Route J40 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 69% of homes in Van Buren County
  • Smaller than 79% of homes in Van Buren County
  • Has a bigger lot than 78% of homes in Van Buren County

What homes are worth in Bonaparte 52620

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

This home
$31K$444K

This home is worth more than 37% of homes in Bonaparte 52620.

How it measures up in Bonaparte 52620

The dot is this home. The mark in the middle is the typical home in Bonaparte 52620.

Estimated value$81,626
CheaperTypical $104,907Pricier

Pricier than 37% of homes nearby

Price per ft²$85
CheaperTypical $78Pricier

Pricier than 54% of homes nearby

Living area960 ft²
SmallerTypical 1,330 ft²Bigger

Bigger than 22% of homes nearby

Lot size14.48 ac
SmallerTypical 1.6 acBigger

Bigger than 74% of homes nearby

Year built1920
OlderTypical 1955Newer

Newer than 45% of homes nearby

How 31977 Route J40 ranks against every home in each area.
MeasureThis homeBonaparte 52620Van Buren County
Estimated valuepricier than$81,62637% of homes31% of homes
Price per ft²pricier than$8554% of homes48% of homes
Living areabigger than960 ft²22% of homes21% of homes
Lot sizebigger than14.48 ac74% of homes78% of homes
Year builtnewer than192045% of homes38% of homes

About 31977 Route J40

How much is 31977 Route J40, Bonaparte, IA worth?

The TopHap Estimate for 31977 Route J40, Bonaparte, IA is $81,626 as of Sep 24, 2026. The likely range is $51,160 to $112,092. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 31977 Route J40, Bonaparte, IA last sell?

31977 Route J40, Bonaparte, IA last sold on Apr 3, 2009, according to the county's recorded deed.

How big is 31977 Route J40, Bonaparte, IA?

31977 Route J40, Bonaparte, IA has 4 bedrooms, 3 bathrooms, 960 square feet of living space and a 14.48-acre lot.

When was 31977 Route J40, Bonaparte, IA built?

31977 Route J40, Bonaparte, IA was built in 1920, making it 106 years old. The building has 1 story.

What schools serve 31977 Route J40, Bonaparte, IA?

31977 Route J40, Bonaparte, IA is assigned to Harmony Center Elementary School (elementary), rated D; Van Buren County Middle/High School (middle), rated C+. All sit in Van Buren County Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 31977 Route J40, Bonaparte, IA compare to other homes in Bonaparte 52620?

Among the 431 homes in Bonaparte 52620, it is worth more than 37% of them ($81,626 against a typical $104,907), its price per square foot is higher than 54% of them ($85 against a typical $78), it is bigger than 22% of them (960 ft² against a typical 1,330 ft²), its lot is bigger than 74% of them (14.48 ac against a typical 1.6 ac) and it is newer than 45% of them (1920 against a typical 1955). Measured against all of Van Buren County, it is worth more than 31% 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 31977 Route J40, Bonaparte, IA?

The 2024 property tax bill for 31977 Route J40, Bonaparte, IA was $1,330. The county assessed it at $140,340.

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