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Single Family ResidenceResidential
$175,296$108 / 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 76How 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

309 MONTGOMERY ST

DECORAH, IA 52101
3
Beds
1.5
Baths
1,616 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.
0.28 ac
Lot SizeThe size of the land the home sits on, from county records.
1916
Year BuiltThe year the home was originally built, according to county records.
2
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.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$175K
$133K low$218K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,726 (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.$240,970 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$36,840
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$204,130
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$210,970
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$240,970

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

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
CountyWINNESHIEK
Lot (acres)The size of the land the home sits on, from county records.0.28
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.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.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.Deck · 268 ft²Porch · 208 ft²

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
John Cline Elementary School
Elementary · Grades KG–2 · 0.6 mi
M
Decorah Middle SchoolA
Middle · Grades 5–8 · 0.6 mi
H
Decorah High SchoolA
High · Grades 9–12 · 0.6 mi

District: Decorah Community School District

Neighborhood · ZIP 52101These 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.97
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.78
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.16

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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.26%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.5%
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.13,187
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.42 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$73,457
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$94,291
Average tempThe average temperature here across a full year.45°F
Annual precipHow much rain and melted snow falls here in a typical year.34 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.61%

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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

309 Montgomery 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 80% of homes in Decorah 52101
  • Costs less per square foot than 86% of homes in Decorah 52101
  • Has a smaller lot than 71% of homes in Winneshiek County
  • Older than 72% of homes in Decorah 52101

What homes are worth in Decorah 52101

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

This home
$77K$706K

This home is worth more than 20% of homes in Decorah 52101.

How it measures up in Decorah 52101

The dot is this home. The mark in the middle is the typical home in Decorah 52101.

Estimated value$175,296
CheaperTypical $263,178Pricier

Pricier than 20% of homes nearby

Price per ft²$108
CheaperTypical $179Pricier

Pricier than 14% of homes nearby

Living area1,616 ft²
SmallerTypical 1,535 ft²Bigger

Bigger than 57% of homes nearby

Lot size0.28 ac
SmallerTypical 0.48 acBigger

Bigger than 33% of homes nearby

Year built1916
OlderTypical 1969Newer

Newer than 28% of homes nearby

How 309 Montgomery St ranks against every home in each area.
MeasureThis homeDecorah 52101Winneshiek County
Estimated valuepricier than$175,29620% of homes33% of homes
Price per ft²pricier than$10814% of homes28% of homes
Living areabigger than1,616 ft²57% of homes55% of homes
Lot sizebigger than0.28 ac33% of homes29% of homes
Year builtnewer than191628% of homes31% of homes

About 309 Montgomery St

How much is 309 Montgomery St, Decorah, IA worth?

The TopHap Estimate for 309 Montgomery St, Decorah, IA is $175,296 as of Aug 30, 2026. The likely range is $133,008 to $217,584. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 309 Montgomery St, Decorah, IA last sell?

309 Montgomery St, Decorah, IA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 309 Montgomery St, Decorah, IA?

309 Montgomery St, Decorah, IA has 3 bedrooms, 1.5 bathrooms, 1,616 square feet of living space and a 0.28-acre lot.

When was 309 Montgomery St, Decorah, IA built?

309 Montgomery St, Decorah, IA was built in 1916, making it 110 years old. The building has 2 stories.

What schools serve 309 Montgomery St, Decorah, IA?

309 Montgomery St, Decorah, IA is assigned to John Cline Elementary School (elementary); Decorah Middle School (middle), rated A; Decorah High School (high), rated A. All sit in Decorah Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 309 Montgomery St, Decorah, IA compare to other homes in Decorah 52101?

Among the 5,096 homes in Decorah 52101, it is worth more than 20% of them ($175,296 against a typical $263,178), its price per square foot is higher than 14% of them ($108 against a typical $179), it is bigger than 57% of them (1,616 ft² against a typical 1,535 ft²), its lot is bigger than 33% of them (0.28 ac against a typical 0.48 ac) and it is newer than 28% of them (1916 against a typical 1969). Measured against all of Winneshiek County, it is worth more than 33% 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 309 Montgomery St, Decorah, IA?

The 2025 property tax bill for 309 Montgomery St, Decorah, IA was $3,726. The county assessed it at $240,970.

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