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Mini-Warehouse, StorageIndustrial

20TH ST

ROCK VALLEY, IA 51247
0
Baths
4,744 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.
0.83 ac
Lot SizeThe size of the land the home sits on, from county records.
2003
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.$2,822 (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.$164,570 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$49,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$114,770
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$141,870
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$164,570

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.36
35
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
27
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
63
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
44
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
15
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.6 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.Mini-Warehouse, Storage
CountySIOUX
Lot (acres)The size of the land the home sits on, from county records.0.83
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.

E
Rock Valley Elementary SchoolA
Elementary · Grades PK–5 · 0.4 mi
M
Rock Valley High SchoolA-
Middle · Grades 9–12 · 0.4 mi

District: Rock Valley Community School District

Neighborhood · ZIP 51247These 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.127
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.94
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.96%
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.6.5%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.7%
PopulationHow many people live in this area.5,240
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.47 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$83,197
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$99,994
Average tempThe average temperature here across a full year.47°F
Annual precipHow much rain and melted snow falls here in a typical year.27 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

20th 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.

  • Among the largest homes in Rock Valley 51247
  • Has a bigger lot than 72% of homes in Sioux County
  • Newer than 81% of homes in Sioux County

How it measures up in Rock Valley 51247

The dot is this home. The mark in the middle is the typical home in Rock Valley 51247.

Living area4,744 ft²
SmallerTypical 1,500 ft²Bigger

Bigger than almost all homes nearby

Lot size0.83 ac
SmallerTypical 0.36 acBigger

Bigger than 71% of homes nearby

Year built2003
OlderTypical 1974Newer

Newer than 76% of homes nearby

How 20th St ranks against every home in each area.
MeasureThis homeRock Valley 51247Sioux County
Living areabigger than4,744 ft²almost all homesalmost all homes
Lot sizebigger than0.83 ac71% of homes72% of homes
Year builtnewer than200376% of homes81% of homes

About 20th St

When did 20th St, Rock Valley, IA last sell?

20th St, Rock Valley, IA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 20th St, Rock Valley, IA?

20th St, Rock Valley, IA has 4,744 square feet of living space and a 0.83-acre lot.

When was 20th St, Rock Valley, IA built?

20th St, Rock Valley, IA was built in 2003, making it 23 years old. The building has 1 story.

What schools serve 20th St, Rock Valley, IA?

20th St, Rock Valley, IA is assigned to Rock Valley Elementary School (elementary), rated A; Rock Valley High School (middle), rated A-. All sit in Rock Valley Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20th St, Rock Valley, IA compare to other homes in Rock Valley 51247?

Among the 1,825 homes in Rock Valley 51247, it is bigger than almost all of them (4,744 ft² against a typical 1,500 ft²), its lot is bigger than 71% of them (0.83 ac against a typical 0.36 ac) and it is newer than 76% of them (2003 against a typical 1974). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 20th St, Rock Valley, IA?

The 2025 property tax bill for 20th St, Rock Valley, IA was $2,822. The county assessed it at $164,570.

More homes on 20th St

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Assigned schools

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