Skip to content
Skip to content
TopHapOpen in map
Rural ResidenceResidential
$145,135$113 / 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 80How 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

21052 Z AVE

STEAMBOAT ROCK, IA 50672
3
Beds
1
Baths
1,280 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.
75.5 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.
2
StoriesHow many floors the home has above ground.
5
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

$145K
$116K low$175K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,046 (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.$275,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$195,420
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$79,780
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$231,660
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$275,200

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.79 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.Rural Residence
StyleThe architectural style of the home, such as ranch or colonial.A-Frame
CountyGRUNDY
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1916
Lot (acres)The size of the land the home sits on, from county records.75.50
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.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.DeckPorch · 224 ft²

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

M
Agwsr Middle School
Middle · Grades 6–8 · 4.2 mi
H
Agwsr High SchoolC
High · Grades 9–12 · 10.9 mi
E
Agwsr Elementary SchoolC-
Elementary · Grades KG–5 · 10.9 mi

District: Agwsr Community School District

Neighborhood · ZIP 50672These 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.129
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.81
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.88%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.14%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.4%
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.552
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.14 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$66,612
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$77,890
Average tempThe average temperature here across a full year.47°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%

Owner Tools

Do you own this home?
Claim this home

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

21052 Z Ave 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 68% of homes in Grundy County
  • Costs more per square foot than 66% of homes in Steamboat Rock 50672
  • Smaller than 71% of homes in Grundy County
  • Among the largest lots in Steamboat Rock 50672
  • Older than 86% of homes in Grundy County

What homes are worth in Steamboat Rock 50672

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

This home
$55K$365K

This home is worth more than 51% of homes in Steamboat Rock 50672.

How it measures up in Steamboat Rock 50672

The dot is this home. The mark in the middle is the typical home in Steamboat Rock 50672.

Estimated value$145,135
CheaperTypical $144,280Pricier

Pricier than 51% of homes nearby

Price per ft²$113
CheaperTypical $97Pricier

Pricier than 66% of homes nearby

Living area1,280 ft²
SmallerTypical 1,562 ft²Bigger

Bigger than 33% of homes nearby

Lot size75.5 ac
SmallerTypical 1.16 acBigger

Bigger than almost all homes nearby

Year built1900
OlderTypical 1945Newer

Newer than 25% of homes nearby

How 21052 Z Ave ranks against every home in each area.
MeasureThis homeSteamboat Rock 50672Grundy County
Estimated valuepricier than$145,13551% of homes32% of homes
Price per ft²pricier than$11366% of homes42% of homes
Living areabigger than1,280 ft²33% of homes29% of homes
Lot sizebigger than75.5 acalmost all homes96% of homes
Year builtnewer than190025% of homes14% of homes

About 21052 Z Ave

How much is 21052 Z Ave, Steamboat Rock, IA worth?

The TopHap Estimate for 21052 Z Ave, Steamboat Rock, IA is $145,135 as of Sep 24, 2026. The likely range is $115,672 to $174,598. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21052 Z Ave, Steamboat Rock, IA last sell?

21052 Z Ave, Steamboat Rock, IA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 21052 Z Ave, Steamboat Rock, IA?

21052 Z Ave, Steamboat Rock, IA has 3 bedrooms, 1 bathrooms, 1,280 square feet of living space and a 75.50-acre lot.

When was 21052 Z Ave, Steamboat Rock, IA built?

21052 Z Ave, Steamboat Rock, IA was built in 1900, making it 126 years old. It is a a-frame home. The building has 2 stories.

What schools serve 21052 Z Ave, Steamboat Rock, IA?

21052 Z Ave, Steamboat Rock, IA is assigned to Agwsr Middle School (middle); Agwsr High School (high), rated C; Agwsr Elementary School (elementary), rated C-. All sit in Agwsr Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21052 Z Ave, Steamboat Rock, IA compare to other homes in Steamboat Rock 50672?

Among the 285 homes in Steamboat Rock 50672, it is worth more than 51% of them ($145,135 against a typical $144,280), its price per square foot is higher than 66% of them ($113 against a typical $97), it is bigger than 33% of them (1,280 ft² against a typical 1,562 ft²), its lot is bigger than almost all of them (75.5 ac against a typical 1.16 ac) and it is newer than 25% of them (1900 against a typical 1945). Measured against all of Grundy County, it is worth more than 32% 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 21052 Z Ave, Steamboat Rock, IA?

The 2025 property tax bill for 21052 Z Ave, Steamboat Rock, IA was $3,046. The county assessed it at $275,200.

More homes on Z Ave

Closest homes

More homes in Steamboat Rock 50672

Assigned schools

Explore the area

See this home in context

Open 21052 Z Ave on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map