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Single Family ResidenceResidential
$401,116$132 / 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 93How 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

431 W 20TH ST

IDAHO FALLS, ID 83402
6
Beds
4
Baths
3,028 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.
0.3 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.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$401K
$372K low$431K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,941 (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.$480,440 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$77,935
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$402,505
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$437,020
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$480,440

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyBONNEVILLE
Lot (acres)The size of the land the home sits on, from county records.0.30
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Shingle
HeatingThe type of heating system in the home.Baseboard
CoolingThe type of cooling or air conditioning in the home.None
GarageWhether the property has a garage, and details like whether it is attached to the home.Carport (Unspecified)
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(6)

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
Hawthorne Elementary SchoolC-
Elementary · Grades KG–6 · 0.5 mi
H
Skyline High SchoolD
High · Grades 9–12 · 1.4 mi
M
Eagle Rock Middle SchoolC
Middle · Grades 7–8 · 1.6 mi

District: Idaho Falls School District 91

Neighborhood · ZIP 83402These 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.107
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.110
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.125

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.23%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.10%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.29,501
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.162 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$74,538
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$85,501
Average tempThe average temperature here across a full year.43°F
Annual precipHow much rain and melted snow falls here in a typical year.12 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.64%

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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

431 W 20th 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 67% of homes in Idaho Falls 83402
  • Costs less per square foot than 86% of homes in Bonneville County
  • Bigger than 86% of homes in Idaho Falls 83402
  • Has a bigger lot than 74% of homes in Idaho Falls 83402
  • Newer than 68% of homes in Idaho Falls 83402

What homes are worth in Idaho Falls 83402

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

This home
$136K$799K

This home is worth more than 67% of homes in Idaho Falls 83402.

How it measures up in Idaho Falls 83402

The dot is this home. The mark in the middle is the typical home in Idaho Falls 83402.

Estimated value$401,116
CheaperTypical $338,218Pricier

Pricier than 67% of homes nearby

Price per ft²$132
CheaperTypical $179Pricier

Pricier than 15% of homes nearby

Living area3,028 ft²
SmallerTypical 1,856 ft²Bigger

Bigger than 86% of homes nearby

Lot size0.3 ac
SmallerTypical 0.21 acBigger

Bigger than 74% of homes nearby

Year built1991
OlderTypical 1977Newer

Newer than 68% of homes nearby

How 431 W 20th St ranks against every home in each area.
MeasureThis homeIdaho Falls 83402Bonneville County
Estimated valuepricier than$401,11667% of homes56% of homes
Price per ft²pricier than$13215% of homes14% of homes
Living areabigger than3,028 ft²86% of homes78% of homes
Lot sizebigger than0.3 ac74% of homes59% of homes
Year builtnewer than199168% of homes53% of homes

About 431 W 20th St

How much is 431 W 20th St, Idaho Falls, ID worth?

The TopHap Estimate for 431 W 20th St, Idaho Falls, ID is $401,116 as of Sep 24, 2026. The likely range is $371,691 to $430,541. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 431 W 20th St, Idaho Falls, ID last sell?

431 W 20th St, Idaho Falls, ID last sold on Apr 3, 2023, according to the county's recorded deed.

How big is 431 W 20th St, Idaho Falls, ID?

431 W 20th St, Idaho Falls, ID has 6 bedrooms, 4 bathrooms, 3,028 square feet of living space and a 0.30-acre lot.

When was 431 W 20th St, Idaho Falls, ID built?

431 W 20th St, Idaho Falls, ID was built in 1991, making it 35 years old. The building has 1 story.

What schools serve 431 W 20th St, Idaho Falls, ID?

431 W 20th St, Idaho Falls, ID is assigned to Hawthorne Elementary School (elementary), rated C-; Skyline High School (high), rated D; Eagle Rock Middle School (middle), rated C. All sit in Idaho Falls School District 91. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 431 W 20th St, Idaho Falls, ID compare to other homes in Idaho Falls 83402?

Among the 9,683 homes in Idaho Falls 83402, it is worth more than 67% of them ($401,116 against a typical $338,218), its price per square foot is higher than 15% of them ($132 against a typical $179), it is bigger than 86% of them (3,028 ft² against a typical 1,856 ft²), its lot is bigger than 74% of them (0.3 ac against a typical 0.21 ac) and it is newer than 68% of them (1991 against a typical 1977). Measured against all of Bonneville County, it is worth more than 56% 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 431 W 20th St, Idaho Falls, ID?

The 2025 property tax bill for 431 W 20th St, Idaho Falls, ID was $3,941. The county assessed it at $480,440.

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