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Rural ResidenceResidential
$544,120$354 / 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 77How 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

3121 320TH ST

HULL, IA 51239
2.5
Baths
1,536 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.
8.64 ac
Lot SizeThe size of the land the home sits on, from county records.
1975
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
9
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

$544K
$416K low$672K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,178 (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.$326,040 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$16,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$309,740
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$286,860
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$326,040

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

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
CountySIOUX
Lot (acres)The size of the land the home sits on, from county records.8.64
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.Radiant
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, Attached
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.Patio · 440 ft²Porch · 16 ft²

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

M
Boyden-Hull High SchoolA
Middle · Grades 7–12 · 1.7 mi
E
Boyden-Hull Elementary SchoolA
Elementary · Grades PK–6 · 8.4 mi

District: Boyden-Hull Community School District

Neighborhood · ZIP 51239These 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.81
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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.1%
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.3,675
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.54 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$81,266
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$107,734
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.28 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

3121 320th 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 more than 95% of homes in Hull 51239
  • Costs more per square foot than 98% of homes in Hull 51239
  • Has a bigger lot than 91% of homes in Sioux County

What homes are worth in Hull 51239

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

This home
$72K$669K

This home is worth more than 95% of homes in Hull 51239.

How it measures up in Hull 51239

The dot is this home. The mark in the middle is the typical home in Hull 51239.

Estimated value$544,120
CheaperTypical $276,888Pricier

Pricier than 95% of homes nearby

Price per ft²$354
CheaperTypical $181Pricier

Pricier than 98% of homes nearby

Living area1,536 ft²
SmallerTypical 1,562 ft²Bigger

Bigger than 48% of homes nearby

Lot size8.64 ac
SmallerTypical 0.35 acBigger

Bigger than 90% of homes nearby

Year built1975
OlderTypical 1965Newer

Newer than 60% of homes nearby

How 3121 320th St ranks against every home in each area.
MeasureThis homeHull 51239Sioux County
Estimated valuepricier than$544,12095% of homes94% of homes
Price per ft²pricier than$35498% of homes98% of homes
Living areabigger than1,536 ft²48% of homes53% of homes
Lot sizebigger than8.64 ac90% of homes91% of homes
Year builtnewer than197560% of homes57% of homes

About 3121 320th St

How much is 3121 320th St, Hull, IA worth?

The TopHap Estimate for 3121 320th St, Hull, IA is $544,120 as of Sep 24, 2026. The likely range is $416,454 to $671,786. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3121 320th St, Hull, IA last sell?

3121 320th St, Hull, IA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 3121 320th St, Hull, IA?

3121 320th St, Hull, IA has 2.5 bathrooms, 1,536 square feet of living space and a 8.64-acre lot.

When was 3121 320th St, Hull, IA built?

3121 320th St, Hull, IA was built in 1975, making it 51 years old. The building has 1 story.

What schools serve 3121 320th St, Hull, IA?

3121 320th St, Hull, IA is assigned to Boyden-Hull High School (middle), rated A; Boyden-Hull Elementary School (elementary), rated A. All sit in Boyden-Hull Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3121 320th St, Hull, IA compare to other homes in Hull 51239?

Among the 1,171 homes in Hull 51239, it is worth more than 95% of them ($544,120 against a typical $276,888), its price per square foot is higher than 98% of them ($354 against a typical $181), it is bigger than 48% of them (1,536 ft² against a typical 1,562 ft²), its lot is bigger than 90% of them (8.64 ac against a typical 0.35 ac) and it is newer than 60% of them (1975 against a typical 1965). Measured against all of Sioux County, it is worth more than 94% 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 3121 320th St, Hull, IA?

The 2025 property tax bill for 3121 320th St, Hull, IA was $3,178. The county assessed it at $326,040.

More homes on 320th St

Closest homes

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Assigned schools

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