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Single Family ResidenceResidential
$81,245$145 / 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 69How 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

921 SPRING ST

GRINNELL, IA 50112
1
Baths
560 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.
0.15 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.
3
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$81K
$56K low$106K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$472 (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.$30,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$11,250
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$19,650
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$35,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$30,900

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyPOWESHIEK
Lot (acres)The size of the land the home sits on, from county records.0.15
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.Central
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.Porch · 112 ft²

Transaction History(2)

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
Bailey Park Elementary School
Elementary · Grades KG–2 · 0.4 mi
H
Grinnell Community Senior High SchoolA
High · Grades 9–12 · 0.7 mi
M
Grinnell Community Middle SchoolC+
Middle · Grades 5–8 · 1.1 mi

District: Grinnell-Newburg Community School District

Neighborhood · ZIP 50112These 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.91
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.14

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.17%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.2%
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.11,835
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.64 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$68,400
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$98,246
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.36 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.59%

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

921 Spring 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 95% of homes in Grinnell 50112
  • Among the smallest homes in Grinnell 50112
  • Has a smaller lot than 96% of homes in Poweshiek County
  • Older than 70% of homes in Poweshiek County

What homes are worth in Grinnell 50112

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

This home
$64K$661K

This home is worth more than 5% of homes in Grinnell 50112.

How it measures up in Grinnell 50112

The dot is this home. The mark in the middle is the typical home in Grinnell 50112.

Estimated value$81,245
CheaperTypical $198,878Pricier

Pricier than 5% of homes nearby

Price per ft²$145
CheaperTypical $134Pricier

Pricier than 58% of homes nearby

Living area560 ft²
SmallerTypical 1,456 ft²Bigger

Smaller than almost all homes nearby

Lot size0.15 ac
SmallerTypical 0.34 acBigger

Bigger than 5% of homes nearby

Year built1900
OlderTypical 1959Newer

Newer than 32% of homes nearby

How 921 Spring St ranks against every home in each area.
MeasureThis homeGrinnell 50112Poweshiek County
Estimated valuepricier than$81,2455% of homes6% of homes
Price per ft²pricier than$14558% of homes53% of homes
Living areabigger than560 ft²almost no homesalmost no homes
Lot sizebigger than0.15 ac5% of homes4% of homes
Year builtnewer than190032% of homes30% of homes

About 921 Spring St

How much is 921 Spring St, Grinnell, IA worth?

The TopHap Estimate for 921 Spring St, Grinnell, IA is $81,245 as of Sep 24, 2026. The likely range is $56,353 to $106,137. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 921 Spring St, Grinnell, IA last sell?

921 Spring St, Grinnell, IA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 921 Spring St, Grinnell, IA?

921 Spring St, Grinnell, IA has 1 bathrooms, 560 square feet of living space and a 0.15-acre lot.

When was 921 Spring St, Grinnell, IA built?

921 Spring St, Grinnell, IA was built in 1900, making it 126 years old. The building has 1 story.

What schools serve 921 Spring St, Grinnell, IA?

921 Spring St, Grinnell, IA is assigned to Bailey Park Elementary School (elementary); Grinnell Community Senior High School (high), rated A; Grinnell Community Middle School (middle), rated C+. All sit in Grinnell-Newburg Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 921 Spring St, Grinnell, IA compare to other homes in Grinnell 50112?

Among the 3,986 homes in Grinnell 50112, it is worth more than 5% of them ($81,245 against a typical $198,878), its price per square foot is higher than 58% of them ($145 against a typical $134), it is bigger than almost none of them (560 ft² against a typical 1,456 ft²), its lot is bigger than 5% of them (0.15 ac against a typical 0.34 ac) and it is newer than 32% of them (1900 against a typical 1959). Measured against all of Poweshiek County, it is worth more than 6% 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 921 Spring St, Grinnell, IA?

The 2025 property tax bill for 921 Spring St, Grinnell, IA was $472. The county assessed it at $30,900.

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Assigned schools

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