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Single Family ResidenceResidential
$309,206$253 / 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 89How 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

121 W 18TH ST

IDAHO FALLS, ID 83402
3
Beds
1
Baths
1,224 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.
0.14 ac
Lot SizeThe size of the land the home sits on, from county records.
1930
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
Pre-foreclosure (NOD)A foreclosure notice on this home is currently active. Many are worked out before any auction happens.
A foreclosure-related notice has been recorded for this property.

Valuation

$309K
$276K low$343K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,017 (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.$278,986 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$64,078
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$214,908
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$278,986
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$278,986

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.0.14
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.Galvanized
HeatingThe type of heating system in the home.Forced Air
CoolingThe type of cooling or air conditioning in the home.None
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.Patio · 220 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.

Foreclosure Filings(1)

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 · 0.2 mi
H
Skyline High SchoolD
High · Grades 9–12 · 1.7 mi
M
Eagle Rock Middle SchoolC
Middle · Grades 7–8 · 2.0 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%

Owner Tools

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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

121 W 18th 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 less than 71% of homes in Bonneville County
  • Costs more per square foot than 88% of homes in Idaho Falls 83402
  • Smaller than 85% of homes in Bonneville County
  • Has a smaller lot than 89% of homes in Bonneville County
  • Older than 94% of homes in Bonneville County

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 39% 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$309,206
CheaperTypical $338,218Pricier

Pricier than 39% of homes nearby

Price per ft²$253
CheaperTypical $179Pricier

Pricier than 88% of homes nearby

Living area1,224 ft²
SmallerTypical 1,856 ft²Bigger

Bigger than 18% of homes nearby

Lot size0.14 ac
SmallerTypical 0.21 acBigger

Bigger than 14% of homes nearby

Year built1930
OlderTypical 1977Newer

Newer than 10% of homes nearby

How 121 W 18th St ranks against every home in each area.
MeasureThis homeIdaho Falls 83402Bonneville County
Estimated valuepricier than$309,20639% of homes29% of homes
Price per ft²pricier than$25388% of homes86% of homes
Living areabigger than1,224 ft²18% of homes15% of homes
Lot sizebigger than0.14 ac14% of homes11% of homes
Year builtnewer than193010% of homes6% of homes

About 121 W 18th St

How much is 121 W 18th St, Idaho Falls, ID worth?

The TopHap Estimate for 121 W 18th St, Idaho Falls, ID is $309,206 as of Sep 24, 2026. The likely range is $275,626 to $342,786. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 121 W 18th St, Idaho Falls, ID?

121 W 18th St, Idaho Falls, ID has 3 bedrooms, 1 bathrooms, 1,224 square feet of living space and a 0.14-acre lot.

When was 121 W 18th St, Idaho Falls, ID built?

121 W 18th St, Idaho Falls, ID was built in 1930, making it 96 years old. The building has 1 story.

What schools serve 121 W 18th St, Idaho Falls, ID?

121 W 18th 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 121 W 18th 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 39% of them ($309,206 against a typical $338,218), its price per square foot is higher than 88% of them ($253 against a typical $179), it is bigger than 18% of them (1,224 ft² against a typical 1,856 ft²), its lot is bigger than 14% of them (0.14 ac against a typical 0.21 ac) and it is newer than 10% of them (1930 against a typical 1977). Measured against all of Bonneville County, it is worth more than 29% 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 121 W 18th St, Idaho Falls, ID?

The 2025 property tax bill for 121 W 18th St, Idaho Falls, ID was $1,017. The county assessed it at $278,986.

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Assigned schools

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