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Rural ResidenceResidential
$73,335$77 / 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 68How 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

509 310TH ST

LONE ROCK, IA 50559
1
Baths
952 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.
40 ac
Lot SizeThe size of the land the home sits on, from county records.
1900
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
10
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$73K
$50K low$97K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,674 (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.$119,916 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$96,675
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$23,241
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$92,168
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$119,916

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.32
28
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
7
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
65
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
53
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
11
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.4 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.0.2 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.Rural Residence
CountyKOSSUTH
Lot (acres)The size of the land the home sits on, from county records.40.00
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.Gravity
CoolingThe type of cooling or air conditioning in the home.Yes
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.Shed · 192 ft²

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

E
North Union Elementary School
Elementary · Grades PK–5 · 2.0 mi
M
North Union Middle SchoolB+
Middle · Grades 6–8 · 11.8 mi
H
North Union High SchoolA
High · Grades 9–12 · 14.4 mi

District: North Kossuth Community School District

Neighborhood · ZIP 50559These 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.132
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.95
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.14

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.17%
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.0.9%
PopulationHow many people live in this area.471
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.12 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$62,459
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$78,938
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

509 310th 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 less than 76% of homes in Kossuth County
  • Smaller than 89% of homes in Lone Rock 50559
  • Among the largest lots in Kossuth County
  • Older than 83% of homes in Kossuth County

What homes are worth in Lone Rock 50559

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

This home
$33K$320K

This home is worth more than 28% of homes in Lone Rock 50559.

How it measures up in Lone Rock 50559

The dot is this home. The mark in the middle is the typical home in Lone Rock 50559.

Estimated value$73,335
CheaperTypical $106,753Pricier

Pricier than 28% of homes nearby

Price per ft²$77
CheaperTypical $78Pricier

Pricier than 48% of homes nearby

Living area952 ft²
SmallerTypical 1,456 ft²Bigger

Bigger than 11% of homes nearby

Lot size40 ac
SmallerTypical 1.7 acBigger

Bigger than 98% of homes nearby

Year built1900
OlderTypical 1932Newer

Newer than 24% of homes nearby

How 509 310th St ranks against every home in each area.
MeasureThis homeLone Rock 50559Kossuth County
Estimated valuepricier than$73,33528% of homes24% of homes
Price per ft²pricier than$7748% of homes41% of homes
Living areabigger than952 ft²11% of homes11% of homes
Lot sizebigger than40 ac98% of homesalmost all homes
Year builtnewer than190024% of homes17% of homes

About 509 310th St

How much is 509 310th St, Lone Rock, IA worth?

The TopHap Estimate for 509 310th St, Lone Rock, IA is $73,335 as of Sep 24, 2026. The likely range is $49,677 to $96,993. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 509 310th St, Lone Rock, IA last sell?

509 310th St, Lone Rock, IA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 509 310th St, Lone Rock, IA?

509 310th St, Lone Rock, IA has 1 bathrooms, 952 square feet of living space and a 40.00-acre lot.

When was 509 310th St, Lone Rock, IA built?

509 310th St, Lone Rock, IA was built in 1900, making it 126 years old. The building has 1 story.

What schools serve 509 310th St, Lone Rock, IA?

509 310th St, Lone Rock, IA is assigned to North Union Elementary School (elementary); North Union Middle School (middle), rated B+; North Union High School (high), rated A. All sit in North Kossuth Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 509 310th St, Lone Rock, IA compare to other homes in Lone Rock 50559?

Among the 173 homes in Lone Rock 50559, it is worth more than 28% of them ($73,335 against a typical $106,753), its price per square foot is higher than 48% of them ($77 against a typical $78), it is bigger than 11% of them (952 ft² against a typical 1,456 ft²), its lot is bigger than 98% of them (40 ac against a typical 1.7 ac) and it is newer than 24% of them (1900 against a typical 1932). Measured against all of Kossuth County, it is worth more than 24% 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 509 310th St, Lone Rock, IA?

The 2025 property tax bill for 509 310th St, Lone Rock, IA was $1,674. The county assessed it at $119,916.

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