Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$102,605$75 / 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 86How 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
Last sold for $20,500 on Jun 20, 2008

400 MAIN ST

NORTH SIOUX CITY, SD 57049
2
Beds
0
Baths
1,368 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.
0.12 ac
Lot SizeThe size of the land the home sits on, from county records.
1927
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$103K
$88K low$117K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$20,500 · Jun 20, 2008

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$973 (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.$65,218 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$9,906
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$55,312
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$65,218

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.13 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.Single Family Residence
CountyUnion
Lot (acres)The size of the land the home sits on, from county records.0.12
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Wood (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Central
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

Transaction History(2)

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
Dakota Valley Elementary - 02B-
Elementary · Grades KG–3 · 2.5 mi
M
Dakota Valley Middle School - 03A+
Middle · Grades 6–8 · 2.5 mi
H
Dakota Valley High School - 01B+
High · Grades 9–12 · 2.5 mi

District: Dakota Valley School District 61-8

Neighborhood · ZIP 57049These 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.80
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.98
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.24

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.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.3%
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.5,733
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.365 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$107,646
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$144,870
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.63%

Owner Tools

Do you own this home?
Claim this home

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

400 Main 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 least valuable homes in North Sioux City 57049
  • Among the lowest price per square foot in North Sioux City 57049
  • Smaller than 72% of homes in North Sioux City 57049
  • Has a smaller lot than 94% of homes in North Sioux City 57049
  • Older than 98% of homes in North Sioux City 57049

What homes are worth in North Sioux City 57049

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

This home
$123K$1.1M

This home is worth less than almost all homes in North Sioux City 57049.

How it measures up in North Sioux City 57049

The dot is this home. The mark in the middle is the typical home in North Sioux City 57049.

Estimated value$102,605
CheaperTypical $390,488Pricier

Cheaper than almost all homes nearby

Price per ft²$75
CheaperTypical $225Pricier

Cheaper than almost all homes nearby

Living area1,368 ft²
SmallerTypical 1,742 ft²Bigger

Bigger than 28% of homes nearby

Lot size0.12 ac
SmallerTypical 0.26 acBigger

Bigger than 6% of homes nearby

Year built1927
OlderTypical 2000Newer

Newer than 2% of homes nearby

How 400 Main St ranks against every home in each area.
MeasureThis homeNorth Sioux City 57049Union County
Estimated valuepricier than$102,605almost no homes6% of homes
Price per ft²pricier than$75almost no homes6% of homes
Living areabigger than1,368 ft²28% of homes38% of homes
Lot sizebigger than0.12 ac6% of homes6% of homes
Year builtnewer than19272% of homes18% of homes

About 400 Main St

How much is 400 Main St, North Sioux City, SD worth?

The TopHap Estimate for 400 Main St, North Sioux City, SD is $102,605 as of Aug 30, 2026. The likely range is $88,486 to $116,724. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 400 Main St, North Sioux City, SD last sell?

400 Main St, North Sioux City, SD last sold on Jun 20, 2008 for $20,500, according to the county's recorded deed.

How big is 400 Main St, North Sioux City, SD?

400 Main St, North Sioux City, SD has 2 bedrooms, 1,368 square feet of living space and a 0.12-acre lot.

When was 400 Main St, North Sioux City, SD built?

400 Main St, North Sioux City, SD was built in 1927, making it 99 years old. The building has 1 story.

What schools serve 400 Main St, North Sioux City, SD?

400 Main St, North Sioux City, SD is assigned to Dakota Valley Elementary - 02 (elementary), rated B-; Dakota Valley Middle School - 03 (middle), rated A+; Dakota Valley High School - 01 (high), rated B+. All sit in Dakota Valley School District 61-8. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 400 Main St, North Sioux City, SD compare to other homes in North Sioux City 57049?

Among the 2,173 homes in North Sioux City 57049, it is worth more than almost none of them ($102,605 against a typical $390,488), its price per square foot is higher than almost none of them ($75 against a typical $225), it is bigger than 28% of them (1,368 ft² against a typical 1,742 ft²), its lot is bigger than 6% of them (0.12 ac against a typical 0.26 ac) and it is newer than 2% of them (1927 against a typical 2000). Measured against all of Union County, it is worth more than 6% 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 400 Main St, North Sioux City, SD?

The 2025 property tax bill for 400 Main St, North Sioux City, SD was $973. The county assessed it at $65,218.

More homes on Main St

Closest homes

More homes in North Sioux City 57049

Assigned schools

Explore the area

See this home in context

Open 400 Main St on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map