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Warehouse, StorageIndustrial

803 1ST AVE

ALTON, IA 51003
0
Baths
9,759 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.
0.24 ac
Lot SizeThe size of the land the home sits on, from county records.
1979
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,846 (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.$175,310 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$5,310
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$170,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$138,230
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$175,310

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Warehouse, Storage
CountySIOUX
Lot (acres)The size of the land the home sits on, from county records.0.24
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.Metal
PoolWhether the property has a pool, and what kind, such as in-ground.No

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

M
Moc-Floyd Valley Middle SchoolA+
Middle · Grades 6–8 · 0.4 mi
E
Moc-Floyd Valley Elementary SchoolA+
Elementary · Grades PK–5 · 1.4 mi
H
Moc-Floyd Valley High SchoolA
High · Grades 9–12 · 2.3 mi

District: Moc-Floyd Valley Community School District

Neighborhood · ZIP 51003These 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.117
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.84
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.18

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.94%
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.4.2%
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.2,164
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.39 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$88,017
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$109,952
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

803 1st 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.

  • Among the largest homes in Alton 51003
  • Has a smaller lot than 73% of homes in Alton 51003
  • Newer than 68% of homes in Alton 51003

How it measures up in Alton 51003

The dot is this home. The mark in the middle is the typical home in Alton 51003.

Living area9,759 ft²
SmallerTypical 1,632 ft²Bigger

Bigger than almost all homes nearby

Lot size0.24 ac
SmallerTypical 0.4 acBigger

Bigger than 27% of homes nearby

Year built1979
OlderTypical 1956Newer

Newer than 68% of homes nearby

How 803 1st Ave ranks against every home in each area.
MeasureThis homeAlton 51003Sioux County
Living areabigger than9,759 ft²almost all homesalmost all homes
Lot sizebigger than0.24 ac27% of homes27% of homes
Year builtnewer than197968% of homes64% of homes

About 803 1st Ave

When did 803 1st Ave, Alton, IA last sell?

803 1st Ave, Alton, IA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 803 1st Ave, Alton, IA?

803 1st Ave, Alton, IA has 9,759 square feet of living space and a 0.24-acre lot.

When was 803 1st Ave, Alton, IA built?

803 1st Ave, Alton, IA was built in 1979, making it 47 years old. The building has 1 story.

What schools serve 803 1st Ave, Alton, IA?

803 1st Ave, Alton, IA is assigned to Moc-Floyd Valley Middle School (middle), rated A+; Moc-Floyd Valley Elementary School (elementary), rated A+; Moc-Floyd Valley High School (high), rated A. All sit in Moc-Floyd Valley Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 803 1st Ave, Alton, IA compare to other homes in Alton 51003?

Among the 670 homes in Alton 51003, it is bigger than almost all of them (9,759 ft² against a typical 1,632 ft²), its lot is bigger than 27% of them (0.24 ac against a typical 0.4 ac) and it is newer than 68% of them (1979 against a typical 1956). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 803 1st Ave, Alton, IA?

The 2025 property tax bill for 803 1st Ave, Alton, IA was $2,846. The county assessed it at $175,310.

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