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Single Family ResidenceResidential
$122,557$84 / 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 81How 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

306 MAIN

LEWIS, IA 51544
3
Beds
1.5
Baths
1,457 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.
0.73 ac
Lot SizeThe size of the land the home sits on, from county records.
1920
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.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$123K
$99K low$146K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,942 (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.$129,530 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$10,160
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$119,370
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$137,080
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$129,530

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyCASS
Lot (acres)The size of the land the home sits on, from county records.0.73
ConstructionThe main material the home's frame and walls are built from.Brick
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Yes
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, Detached
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.Shed · 144 ft²Porch · 333 ft²

Transaction History(1)

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
Griswold Elementary SchoolD+
Elementary · Grades PK–5 · 5.2 mi
M
Griswold Middle/High SchoolA-
Middle · Grades 6–12 · 5.2 mi

District: Griswold Community School District

Neighborhood · ZIP 51544These 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.113
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.94
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.15

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.91%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.20%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
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.540
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.10 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$74,317
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$107,912
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.35 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.59%

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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

306 Main 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.

  • Has a bigger lot than 69% of homes in Cass County

What homes are worth in Lewis 51544

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

This home
$38K$314K

This home is worth more than 40% of homes in Lewis 51544.

How it measures up in Lewis 51544

The dot is this home. The mark in the middle is the typical home in Lewis 51544.

Estimated value$122,557
CheaperTypical $136,004Pricier

Pricier than 40% of homes nearby

Price per ft²$84
CheaperTypical $94Pricier

Pricier than 39% of homes nearby

Living area1,457 ft²
SmallerTypical 1,436 ft²Bigger

Bigger than 52% of homes nearby

Lot size0.73 ac
SmallerTypical 0.85 acBigger

Bigger than 47% of homes nearby

Year built1920
OlderTypical 1920Newer

Newer than 51% of homes nearby

How 306 Main ranks against every home in each area.
MeasureThis homeLewis 51544Cass County
Estimated valuepricier than$122,55740% of homes49% of homes
Price per ft²pricier than$8439% of homes48% of homes
Living areabigger than1,457 ft²52% of homes51% of homes
Lot sizebigger than0.73 ac47% of homes69% of homes
Year builtnewer than192051% of homes44% of homes

About 306 Main

How much is 306 Main, Lewis, IA worth?

The TopHap Estimate for 306 Main, Lewis, IA is $122,557 as of Aug 30, 2026. The likely range is $99,480 to $145,634. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 306 Main, Lewis, IA last sell?

306 Main, Lewis, IA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 306 Main, Lewis, IA?

306 Main, Lewis, IA has 3 bedrooms, 1.5 bathrooms, 1,457 square feet of living space and a 0.73-acre lot.

When was 306 Main, Lewis, IA built?

306 Main, Lewis, IA was built in 1920, making it 106 years old. The building has 1 story.

What schools serve 306 Main, Lewis, IA?

306 Main, Lewis, IA is assigned to Griswold Elementary School (elementary), rated D+; Griswold Middle/High School (middle), rated A-. All sit in Griswold Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 306 Main, Lewis, IA compare to other homes in Lewis 51544?

Among the 321 homes in Lewis 51544, it is worth more than 40% of them ($122,557 against a typical $136,004), its price per square foot is higher than 39% of them ($84 against a typical $94), it is bigger than 52% of them (1,457 ft² against a typical 1,436 ft²), its lot is bigger than 47% of them (0.73 ac against a typical 0.85 ac) and it is newer than 51% of them (1920 against a typical 1920). Measured against all of Cass County, it is worth more than 49% 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 306 Main, Lewis, IA?

The 2025 property tax bill for 306 Main, Lewis, IA was $1,942. The county assessed it at $129,530.

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