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Single Family ResidenceResidential
$56,331$31 / 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 79How 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
Last sold for $52,000 on Dec 5, 2025

521 MAIN ST

MC GREGOR, IA 52157
3
Beds
1.8
Baths
1,840 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1900
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

$56K
$45K low$68K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$52,000 · Dec 5, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$858 (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.$65,633 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$17,837
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$47,796
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$70,027
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$65,633

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.87 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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.1 percent flood zone

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
StyleThe architectural style of the home, such as ranch or colonial.Conventional
CountyCLAYTON
Lot (acres)The size of the land the home sits on, from county records.0.17
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.Hot Water
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 266 ft²Patio · 528 ft²Porch · 232 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.

M
Mfl Marmac Middle SchoolA+
Middle · Grades 6–8 · 0.3 mi
E
Mfl Marmac Elementary SchoolC
Elementary · Grades PK–3 · 10.9 mi
H
Mfl Marmac High SchoolC
High · Grades 9–12 · 10.9 mi

District: Mfl Marmac Community School District

Neighborhood · ZIP 52157These 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.174
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.81%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.16%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.20%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.1,699
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.28 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$58,662
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$79,494
Average tempThe average temperature here across a full year.46°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

521 Main 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 97% of homes in Mc Gregor 52157
  • Among the lowest price per square foot in Mc Gregor 52157
  • Bigger than 71% of homes in Mc Gregor 52157
  • Has a smaller lot than 82% of homes in Clayton County
  • Older than 76% of homes in Mc Gregor 52157

What homes are worth in Mc Gregor 52157

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

This home
$54K$587K

This home is worth more than 3% of homes in Mc Gregor 52157.

How it measures up in Mc Gregor 52157

The dot is this home. The mark in the middle is the typical home in Mc Gregor 52157.

Estimated value$56,331
CheaperTypical $179,708Pricier

Pricier than 3% of homes nearby

Price per ft²$31
CheaperTypical $123Pricier

Cheaper than almost all homes nearby

Living area1,840 ft²
SmallerTypical 1,524 ft²Bigger

Bigger than 71% of homes nearby

Lot size0.17 ac
SmallerTypical 0.63 acBigger

Bigger than 23% of homes nearby

Year built1900
OlderTypical 1967Newer

Newer than 24% of homes nearby

How 521 Main St ranks against every home in each area.
MeasureThis homeMc Gregor 52157Clayton County
Estimated valuepricier than$56,3313% of homes3% of homes
Price per ft²pricier than$31almost no homesalmost no homes
Living areabigger than1,840 ft²71% of homes70% of homes
Lot sizebigger than0.17 ac23% of homes18% of homes
Year builtnewer than190024% of homes25% of homes

About 521 Main St

How much is 521 Main St, Mc Gregor, IA worth?

The TopHap Estimate for 521 Main St, Mc Gregor, IA is $56,331 as of Sep 24, 2026. The likely range is $44,639 to $68,023. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 521 Main St, Mc Gregor, IA last sell?

521 Main St, Mc Gregor, IA last sold on Dec 5, 2025 for $52,000, according to the county's recorded deed.

How big is 521 Main St, Mc Gregor, IA?

521 Main St, Mc Gregor, IA has 3 bedrooms, 1.8 bathrooms, 1,840 square feet of living space and a 0.17-acre lot.

When was 521 Main St, Mc Gregor, IA built?

521 Main St, Mc Gregor, IA was built in 1900, making it 126 years old. It is a conventional home. The building has 1 story.

What schools serve 521 Main St, Mc Gregor, IA?

521 Main St, Mc Gregor, IA is assigned to Mfl Marmac Middle School (middle), rated A+; Mfl Marmac Elementary School (elementary), rated C; Mfl Marmac High School (high), rated C. All sit in Mfl Marmac Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 521 Main St, Mc Gregor, IA compare to other homes in Mc Gregor 52157?

Among the 803 homes in Mc Gregor 52157, it is worth more than 3% of them ($56,331 against a typical $179,708), its price per square foot is higher than almost none of them ($31 against a typical $123), it is bigger than 71% of them (1,840 ft² against a typical 1,524 ft²), its lot is bigger than 23% of them (0.17 ac against a typical 0.63 ac) and it is newer than 24% of them (1900 against a typical 1967). Measured against all of Clayton County, it is worth more than 3% 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 521 Main St, Mc Gregor, IA?

The 2025 property tax bill for 521 Main St, Mc Gregor, IA was $858. The county assessed it at $65,633.

More homes on Main St

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