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Single Family ResidenceResidential
$190,902$142 / 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 88How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

3818 SIOUX RIVER RD

SIOUX CITY, IA 51109
2
Beds
1
Baths
1,346 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.
5.56 ac
Lot SizeThe size of the land the home sits on, from county records.
1945
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
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

$191K
$168K low$214K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,788 (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.$259,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$86,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$173,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$233,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$259,200

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.197 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.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountyWOODBURY
Lot (acres)The size of the land the home sits on, from county records.5.56
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.Yes
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, 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.Deck · 208 ft²Patio · 208 ft²Porch · 208 ft²

Transaction History(1)

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
Riverside Elementary SchoolC
Elementary · Grades PK–5 · 1.2 mi
M
West Middle SchoolC+
Middle · Grades 6–8 · 2.1 mi
H
West High SchoolD+
High · Grades 9–12 · 2.3 mi

District: Sioux City Community School District

Neighborhood · ZIP 51109These 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.84
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.87
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.19

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.7.7%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.13%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.3,999
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.170 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$73,659
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$75,473
Average tempThe average temperature here across a full year.48°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%

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

3818 Sioux River Rd 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 91% of homes in Northwest
  • Costs less per square foot than 88% of homes in Northwest
  • Bigger than 76% of homes in Sioux City 51109
  • Has a bigger lot than 96% of homes in Sioux City 51109
  • Older than 73% of homes in Northwest

What homes are worth in Sioux City 51109

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

This home
$71K$715K

This home is worth more than 69% of homes in Sioux City 51109.

How it measures up in Sioux City 51109

The dot is this home. The mark in the middle is the typical home in Sioux City 51109.

Estimated value$190,902
CheaperTypical $157,891Pricier

Pricier than 69% of homes nearby

Price per ft²$142
CheaperTypical $152Pricier

Pricier than 42% of homes nearby

Living area1,346 ft²
SmallerTypical 1,032 ft²Bigger

Bigger than 76% of homes nearby

Lot size5.56 ac
SmallerTypical 0.2 acBigger

Bigger than 96% of homes nearby

Year built1945
OlderTypical 1952Newer

Newer than 46% of homes nearby

How 3818 Sioux River Rd ranks against every home in each area.
MeasureThis homeNorthwestSioux City 51109Woodbury County
Estimated valuepricier than$190,9029% of homes69% of homes48% of homes
Price per ft²pricier than$14212% of homes42% of homes38% of homes
Living areabigger than1,346 ft²31% of homes76% of homes55% of homes
Lot sizebigger than5.56 ac63% of homes96% of homes95% of homes
Year builtnewer than194527% of homes46% of homes47% of homes

About 3818 Sioux River Rd

How much is 3818 Sioux River Rd, Sioux City, IA worth?

The TopHap Estimate for 3818 Sioux River Rd, Sioux City, IA is $190,902 as of Aug 30, 2026. The likely range is $168,216 to $213,588. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3818 Sioux River Rd, Sioux City, IA last sell?

3818 Sioux River Rd, Sioux City, IA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 3818 Sioux River Rd, Sioux City, IA?

3818 Sioux River Rd, Sioux City, IA has 2 bedrooms, 1 bathrooms, 1,346 square feet of living space and a 5.56-acre lot.

When was 3818 Sioux River Rd, Sioux City, IA built?

3818 Sioux River Rd, Sioux City, IA was built in 1945, making it 81 years old. It is a ranch home. The building has 1 story.

What schools serve 3818 Sioux River Rd, Sioux City, IA?

3818 Sioux River Rd, Sioux City, IA is assigned to Riverside Elementary School (elementary), rated C; West Middle School (middle), rated C+; West High School (high), rated D+. All sit in Sioux City Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3818 Sioux River Rd, Sioux City, IA compare to other homes in Sioux City 51109?

Among the 1,251 homes in Sioux City 51109, it is worth more than 69% of them ($190,902 against a typical $157,891), its price per square foot is higher than 42% of them ($142 against a typical $152), it is bigger than 76% of them (1,346 ft² against a typical 1,032 ft²), its lot is bigger than 96% of them (5.56 ac against a typical 0.2 ac) and it is newer than 46% of them (1945 against a typical 1952). Measured against all of Woodbury County, it is worth more than 48% 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 3818 Sioux River Rd, Sioux City, IA?

The 2025 property tax bill for 3818 Sioux River Rd, Sioux City, IA was $3,788. The county assessed it at $259,200.

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