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Single Family ResidenceResidential
$305,658$162 / 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 84How 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 $400,000 on Jul 25, 2024

646 N RIVER RD

LINN GROVE, IA 51033
3
Beds
1
Baths
1,890 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.
13.16 ac
Lot SizeThe size of the land the home sits on, from county records.
1947
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$306K
$257K low$354K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$400,000 · Jul 25, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,132 (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.$196,830 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$40,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$156,730
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$196,710
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$196,830

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.44
45
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
20
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
67
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
52
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
40
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.10 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.minimal

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
CountyBUENA VISTA
Lot (acres)The size of the land the home sits on, from county records.13.16
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.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.None
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 · 204 ft²Patio · 204 ft²Porch · 240 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
Sioux Central Elementary SchoolC-
Elementary · Grades PK–5 · 6.7 mi
M
Sioux Central Middle SchoolB-
Middle · Grades 7–8 · 6.7 mi
H
Sioux Central High SchoolD
High · Grades 9–12 · 6.7 mi

District: Sioux Central Community School District

Neighborhood · ZIP 51033These 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.157
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.91
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.11

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.89%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.18%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.509
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.8 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$70,702
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$85,087
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.31 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

646 N 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 more than 86% of homes in Linn Grove 51033
  • Costs more per square foot than 84% of homes in Linn Grove 51033
  • Bigger than 77% of homes in Buena Vista County
  • Has a bigger lot than 93% of homes in Buena Vista County
  • Newer than 66% of homes in Linn Grove 51033

What homes are worth in Linn Grove 51033

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

This home
$42K$501K

This home is worth more than 86% of homes in Linn Grove 51033.

How it measures up in Linn Grove 51033

The dot is this home. The mark in the middle is the typical home in Linn Grove 51033.

Estimated value$305,658
CheaperTypical $152,135Pricier

Pricier than 86% of homes nearby

Price per ft²$162
CheaperTypical $100Pricier

Pricier than 84% of homes nearby

Living area1,890 ft²
SmallerTypical 1,591 ft²Bigger

Bigger than 73% of homes nearby

Lot size13.16 ac
SmallerTypical 4.5 acBigger

Bigger than 75% of homes nearby

Year built1947
OlderTypical 1918Newer

Newer than 66% of homes nearby

How 646 N River Rd ranks against every home in each area.
MeasureThis homeLinn Grove 51033Buena Vista County
Estimated valuepricier than$305,65886% of homes86% of homes
Price per ft²pricier than$16284% of homes74% of homes
Living areabigger than1,890 ft²73% of homes77% of homes
Lot sizebigger than13.16 ac75% of homes93% of homes
Year builtnewer than194766% of homes47% of homes

About 646 N River Rd

How much is 646 N River Rd, Linn Grove, IA worth?

The TopHap Estimate for 646 N River Rd, Linn Grove, IA is $305,658 as of Aug 30, 2026. The likely range is $257,062 to $354,254. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 646 N River Rd, Linn Grove, IA last sell?

646 N River Rd, Linn Grove, IA last sold on Jul 25, 2024 for $400,000, according to the county's recorded deed.

How big is 646 N River Rd, Linn Grove, IA?

646 N River Rd, Linn Grove, IA has 3 bedrooms, 1 bathrooms, 1,890 square feet of living space and a 13.16-acre lot.

When was 646 N River Rd, Linn Grove, IA built?

646 N River Rd, Linn Grove, IA was built in 1947, making it 79 years old. The building has 1 story.

What schools serve 646 N River Rd, Linn Grove, IA?

646 N River Rd, Linn Grove, IA is assigned to Sioux Central Elementary School (elementary), rated C-; Sioux Central Middle School (middle), rated B-; Sioux Central High School (high), rated D. All sit in Sioux Central Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 646 N River Rd, Linn Grove, IA compare to other homes in Linn Grove 51033?

Among the 255 homes in Linn Grove 51033, it is worth more than 86% of them ($305,658 against a typical $152,135), its price per square foot is higher than 84% of them ($162 against a typical $100), it is bigger than 73% of them (1,890 ft² against a typical 1,591 ft²), its lot is bigger than 75% of them (13.16 ac against a typical 4.5 ac) and it is newer than 66% of them (1947 against a typical 1918). Measured against all of Buena Vista County, it is worth more than 86% 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 646 N River Rd, Linn Grove, IA?

The 2025 property tax bill for 646 N River Rd, Linn Grove, IA was $2,132. The county assessed it at $196,830.

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