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Single Family ResidenceResidential
$318,521$126 / 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 60How 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

4450 MASON ST

AMMON, ID 83406
4
Beds
3
Baths
2,538 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.
0.48 ac
Lot SizeThe size of the land the home sits on, from county records.
1988
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

$319K
$191K low$446K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,087 (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.$529,910 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$96,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$433,310
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$529,910
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$529,910

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.52
46
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
42
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
59
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
16
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
98
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.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%

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
CountyBonneville
Lot (acres)The size of the land the home sits on, from county records.0.48
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.Radiant
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.Deck · 168 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
Mountain Valley Elementary SchoolD+
Elementary · Grades KG–6 · 0.3 mi
M
Sandcreek Middle SchoolD+
Middle · Grades 7–8 · 1.5 mi
H
Hillcrest High SchoolA
High · Grades 9–12 · 1.6 mi

District: Bonneville Joint School District 93

Neighborhood · ZIP 83406These 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.71
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.105
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.134

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.1%
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.19,812
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.387 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$86,736
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$105,335
Average tempThe average temperature here across a full year.42°F
Annual precipHow much rain and melted snow falls here in a typical year.16 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

4450 Mason 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.

  • Costs less per square foot than 72% of homes in Bonneville County
  • Bigger than 65% of homes in Bonneville County
  • Has a bigger lot than 76% of homes in Bonneville County
  • Older than 74% of homes in Idaho Falls 83406

What homes are worth in Idaho Falls 83406

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

This home
$152K$985K

This home is worth more than 41% of homes in Idaho Falls 83406.

How it measures up in Idaho Falls 83406

The dot is this home. The mark in the middle is the typical home in Idaho Falls 83406.

Estimated value$318,521
CheaperTypical $350,130Pricier

Pricier than 41% of homes nearby

Price per ft²$126
CheaperTypical $153Pricier

Pricier than 30% of homes nearby

Living area2,538 ft²
SmallerTypical 2,385 ft²Bigger

Bigger than 56% of homes nearby

Lot size0.48 ac
SmallerTypical 0.31 acBigger

Bigger than 69% of homes nearby

Year built1988
OlderTypical 2003Newer

Newer than 26% of homes nearby

How 4450 Mason St ranks against every home in each area.
MeasureThis homeIdaho Falls 83406Bonneville County
Estimated valuepricier than$318,52141% of homes47% of homes
Price per ft²pricier than$12630% of homes28% of homes
Living areabigger than2,538 ft²56% of homes65% of homes
Lot sizebigger than0.48 ac69% of homes76% of homes
Year builtnewer than198826% of homes49% of homes

About 4450 Mason St

How much is 4450 Mason St, Ammon, ID worth?

The TopHap Estimate for 4450 Mason St, Ammon, ID is $318,521 as of Aug 30, 2026. The likely range is $191,350 to $445,692. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4450 Mason St, Ammon, ID last sell?

4450 Mason St, Ammon, ID last sold on May 31, 2019, according to the county's recorded deed.

How big is 4450 Mason St, Ammon, ID?

4450 Mason St, Ammon, ID has 4 bedrooms, 3 bathrooms, 2,538 square feet of living space and a 0.48-acre lot.

When was 4450 Mason St, Ammon, ID built?

4450 Mason St, Ammon, ID was built in 1988, making it 38 years old. The building has 1 story.

What schools serve 4450 Mason St, Ammon, ID?

4450 Mason St, Ammon, ID is assigned to Mountain Valley Elementary School (elementary), rated D+; Sandcreek Middle School (middle), rated D+; Hillcrest High School (high), rated A. All sit in Bonneville Joint School District 93. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4450 Mason St, Ammon, ID compare to other homes in Idaho Falls 83406?

Among the 6,258 homes in Idaho Falls 83406, it is worth more than 41% of them ($318,521 against a typical $350,130), its price per square foot is higher than 30% of them ($126 against a typical $153), it is bigger than 56% of them (2,538 ft² against a typical 2,385 ft²), its lot is bigger than 69% of them (0.48 ac against a typical 0.31 ac) and it is newer than 26% of them (1988 against a typical 2003). Measured against all of Bonneville County, it is worth more than 47% 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 4450 Mason St, Ammon, ID?

The 2025 property tax bill for 4450 Mason St, Ammon, ID was $2,087. The county assessed it at $529,910.

More homes on Mason St

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