Skip to content
Skip to content
TopHapOpen in map
Rural ResidenceResidential
$351,575
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 81How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026

15828 COUNTY HIGHWAY J20

GRAND RIVER, IA 50108
0
Baths
38 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$352K
$285K low$418K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,020 (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.$166,383 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$38,633
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$127,750
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$138,249
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$166,383

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.54
91
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
43
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
69
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
58
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
13
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.131 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.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.Rural Residence
CountyDecatur
Lot (acres)The size of the land the home sits on, from county records.38.00

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

M
Central Decatur Middle School/High School High SchoolC
Middle · Grades 7–12 · 10.0 mi
E
South Elementary School
Elementary · Grades PK–2 · 10.2 mi

District: Central Decatur Community School District

Neighborhood · ZIP 50108These 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.138
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.122
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.13

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.75%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.21%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.20%
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.494
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.7 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$57,815
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$73,379
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.36 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.59%

Owner Tools

Do you own this home?
Claim this home

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

15828 County Highway J20 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 86% of homes in Decatur County
  • Has a bigger lot than 82% of homes in Decatur County

What homes are worth in Grand River 50108

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

This home
$44K$654K

This home is worth more than 82% of homes in Grand River 50108.

How it measures up in Grand River 50108

The dot is this home. The mark in the middle is the typical home in Grand River 50108.

Estimated value$351,575
CheaperTypical $130,446Pricier

Pricier than 82% of homes nearby

Lot size38 ac
SmallerTypical 30 acBigger

Bigger than 73% of homes nearby

How 15828 County Highway J20 ranks against every home in each area.
MeasureThis homeGrand River 50108Decatur County
Estimated valuepricier than$351,57582% of homes86% of homes
Lot sizebigger than38 ac73% of homes82% of homes

About 15828 County Highway J20

How much is 15828 County Highway J20, Grand River, IA worth?

The TopHap Estimate for 15828 County Highway J20, Grand River, IA is $351,575 as of Jul 14, 2026. The likely range is $285,186 to $417,964. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

What schools serve 15828 County Highway J20, Grand River, IA?

15828 County Highway J20, Grand River, IA is assigned to Central Decatur Middle School/High School High School (middle), rated C; South Elementary School (elementary). All sit in Central Decatur Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 15828 County Highway J20, Grand River, IA compare to other homes in Grand River 50108?

Among the 277 homes in Grand River 50108, it is worth more than 82% of them ($351,575 against a typical $130,446) and its lot is bigger than 73% of them (38 ac against a typical 30 ac). Measured against all of Decatur County, it is worth more than 86% 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 15828 County Highway J20, Grand River, IA?

The 2024 property tax bill for 15828 County Highway J20, Grand River, IA was $2,020. The county assessed it at $166,383.

More homes on County Highway J20

Closest homes

More homes in Grand River 50108

Assigned schools

Explore the area

See this home in context

Open 15828 County Highway J20 on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map