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Single Family ResidenceResidential
$122,891$66 / 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 55How 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

421 MOUNT ST

GARY, IN 46406
3
Beds
1
Baths
1,850 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.
1952
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$123K
$68K low$178K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,070 (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.$45,500 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$8,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$36,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$41,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$45,500

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.11 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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.minimal

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
CountyLAKE
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.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Central
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.Garage, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(3)

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.

H
West Side Leadership AcademyF
High · Grades 9–12 · 0.8 mi
E
McCullough AcademyD+
Elementary · Grades KG–5 · 1.8 mi
M
Bailly STEM AcademyC-
Middle · Grades 6–8 · 6.0 mi

District: Gary Community School Corporation

Neighborhood · ZIP 46406These 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.143
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.104
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.38

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.84%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.8.1%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.30%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.9,966
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.703 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$41,900
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$55,375
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.38 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.60%

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

421 Mount 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 87% of homes in Gary 46406
  • Costs less per square foot than 88% of homes in Lake County
  • Bigger than 82% of homes in Gary 46406
  • Has a smaller lot than 71% of homes in Lake County
  • Older than 67% of homes in Lake County

What homes are worth in Gary 46406

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

This home
$28K$198K

This home is worth more than 87% of homes in Gary 46406.

How it measures up in Gary 46406

The dot is this home. The mark in the middle is the typical home in Gary 46406.

Estimated value$122,891
CheaperTypical $74,591Pricier

Pricier than 87% of homes nearby

Price per ft²$66
CheaperTypical $66Pricier

Pricier than 51% of homes nearby

Living area1,850 ft²
SmallerTypical 1,140 ft²Bigger

Bigger than 82% of homes nearby

Lot size0.14 ac
SmallerTypical 0.14 acBigger

Bigger than 41% of homes nearby

Year built1952
OlderTypical 1952Newer

Newer than 53% of homes nearby

How 421 Mount St ranks against every home in each area.
MeasureThis homeGary 46406Lake County
Estimated valuepricier than$122,89187% of homes18% of homes
Price per ft²pricier than$6651% of homes12% of homes
Living areabigger than1,850 ft²82% of homes56% of homes
Lot sizebigger than0.14 ac41% of homes29% of homes
Year builtnewer than195253% of homes33% of homes

About 421 Mount St

How much is 421 Mount St, Gary, IN worth?

The TopHap Estimate for 421 Mount St, Gary, IN is $122,891 as of Aug 30, 2026. The likely range is $67,687 to $178,095. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 421 Mount St, Gary, IN last sell?

421 Mount St, Gary, IN last sold on Sep 29, 2023, according to the county's recorded deed.

How big is 421 Mount St, Gary, IN?

421 Mount St, Gary, IN has 3 bedrooms, 1 bathrooms, 1,850 square feet of living space and a 0.14-acre lot.

When was 421 Mount St, Gary, IN built?

421 Mount St, Gary, IN was built in 1952, making it 74 years old. The building has 1 story.

What schools serve 421 Mount St, Gary, IN?

421 Mount St, Gary, IN is assigned to West Side Leadership Academy (high), rated F; McCullough Academy (elementary), rated D+; Bailly STEM Academy (middle), rated C-. All sit in Gary Community School Corporation. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 421 Mount St, Gary, IN compare to other homes in Gary 46406?

Among the 3,580 homes in Gary 46406, it is worth more than 87% of them ($122,891 against a typical $74,591), its price per square foot is higher than 51% of them ($66 against a typical $66), it is bigger than 82% of them (1,850 ft² against a typical 1,140 ft²), its lot is bigger than 41% of them (0.14 ac against a typical 0.14 ac) and it is newer than 53% of them (1952 against a typical 1952). Measured against all of Lake County, it is worth more than 18% 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 421 Mount St, Gary, IN?

The 2024 property tax bill for 421 Mount St, Gary, IN was $1,070. The county assessed it at $45,500.

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