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Single Family ResidenceResidential
$213,607$155 / 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 90How 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
Last sold for $61,420 on Apr 6, 2017

1503 HELMER ST

SIOUX CITY, IA 51103
3
Beds
2 / 2
Baths
1,380 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1925
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

$214K
$192K low$235K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$61,420 · Apr 6, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,518 (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.$227,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$29,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$198,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$231,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$227,900

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyWOODBURY
Lot (acres)The size of the land the home sits on, from county records.0.17
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
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 · 220 ft²Patio · 148 ft²Porch · 219 ft²

Transaction History(8)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(2)

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

E
Liberty Elementary SchoolD-
Elementary · Grades PK–5 · 0.3 mi
H
West High SchoolD+
High · Grades 9–12 · 0.8 mi
M
West Middle SchoolC+
Middle · Grades 6–8 · 1.0 mi

District: Sioux City Community School District

Neighborhood · ZIP 51103These 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.112
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 100.22

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.9.9%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.19%
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.16,584
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,543 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$54,060
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$66,456
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

1503 Helmer 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 83% of homes in Westside South
  • Costs more per square foot than 69% of homes in Westside South
  • Bigger than 73% of homes in Westside South

What homes are worth in Sioux City 51103

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

This home
$54K$445K

This home is worth more than 80% of homes in Sioux City 51103.

How it measures up in Sioux City 51103

The dot is this home. The mark in the middle is the typical home in Sioux City 51103.

Estimated value$213,607
CheaperTypical $145,129Pricier

Pricier than 80% of homes nearby

Price per ft²$155
CheaperTypical $133Pricier

Pricier than 62% of homes nearby

Living area1,380 ft²
SmallerTypical 1,120 ft²Bigger

Bigger than 72% of homes nearby

Lot size0.17 ac
SmallerTypical 0.17 acBigger

Bigger than 58% of homes nearby

Year built1925
OlderTypical 1924Newer

Newer than 54% of homes nearby

How 1503 Helmer St ranks against every home in each area.
MeasureThis homeWestside SouthSioux City 51103Woodbury County
Estimated valuepricier than$213,60783% of homes80% of homes56% of homes
Price per ft²pricier than$15569% of homes62% of homes44% of homes
Living areabigger than1,380 ft²73% of homes72% of homes58% of homes
Lot sizebigger than0.17 ac60% of homes58% of homes43% of homes
Year builtnewer than192560% of homes54% of homes36% of homes

About 1503 Helmer St

How much is 1503 Helmer St, Sioux City, IA worth?

The TopHap Estimate for 1503 Helmer St, Sioux City, IA is $213,607 as of Sep 24, 2026. The likely range is $191,940 to $235,274. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1503 Helmer St, Sioux City, IA last sell?

1503 Helmer St, Sioux City, IA last sold on Apr 6, 2017 for $61,420, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 1503 Helmer St, Sioux City, IA?

1503 Helmer St, Sioux City, IA has 3 bedrooms, 2 bathrooms, 1,380 square feet of living space and a 0.17-acre lot.

When was 1503 Helmer St, Sioux City, IA built?

1503 Helmer St, Sioux City, IA was built in 1925, making it 101 years old. The building has 1 story.

What schools serve 1503 Helmer St, Sioux City, IA?

1503 Helmer St, Sioux City, IA is assigned to Liberty Elementary School (elementary), rated D-; West High School (high), rated D+; West Middle School (middle), rated C+. All sit in Sioux City Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1503 Helmer St, Sioux City, IA compare to other homes in Sioux City 51103?

Among the 5,348 homes in Sioux City 51103, it is worth more than 80% of them ($213,607 against a typical $145,129), its price per square foot is higher than 62% of them ($155 against a typical $133), it is bigger than 72% of them (1,380 ft² against a typical 1,120 ft²), its lot is bigger than 58% of them (0.17 ac against a typical 0.17 ac) and it is newer than 54% of them (1925 against a typical 1924). Measured against all of Woodbury County, it is worth more than 56% 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 1503 Helmer St, Sioux City, IA?

The 2025 property tax bill for 1503 Helmer St, Sioux City, IA was $3,518. The county assessed it at $227,900.

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