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Single Family ResidenceResidential
$66,575$148 / 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 62How 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 $28,000 on Aug 8, 2007

420 N RIDGLEY ST

ALGONA, IA 50511
0
Baths
450 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.
0.2 ac
Lot SizeThe size of the land the home sits on, from county records.
1932
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
3
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

$67K
$41K low$92K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$28,000 · Aug 8, 2007

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$714 (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.$45,170 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$7,260
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$37,910
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$36,205
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$45,170

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.39
45
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
23
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
66
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.
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.8 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.34%
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.Single Family Residence
CountyKOSSUTH
Lot (acres)The size of the land the home sits on, from county records.0.20
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.None
CoolingThe type of cooling or air conditioning in the home.None
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.Porch · 126 ft²

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
Bryant Elementary School
Elementary · Grades 1–2 · 0.3 mi
H
Algona High SchoolC+
High · Grades 9–12 · 1.1 mi
M
Algona Middle SchoolA
Middle · Grades 5–8 · 1.1 mi

District: Algona Community School District

Neighborhood · ZIP 50511These 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.96
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.92
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.16

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.91%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.5%
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.6,869
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.54 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$63,788
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$76,665
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

420 N Ridgley 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 90% of homes in Algona 50511
  • Costs more per square foot than 79% of homes in Kossuth County
  • Among the smallest homes in Algona 50511
  • Has a smaller lot than 72% of homes in Kossuth County
  • Older than 69% of homes in Algona 50511

What homes are worth in Algona 50511

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

This home
$42K$575K

This home is worth more than 10% of homes in Algona 50511.

How it measures up in Algona 50511

The dot is this home. The mark in the middle is the typical home in Algona 50511.

Estimated value$66,575
CheaperTypical $160,000Pricier

Pricier than 10% of homes nearby

Price per ft²$148
CheaperTypical $117Pricier

Pricier than 67% of homes nearby

Living area450 ft²
SmallerTypical 1,435 ft²Bigger

Smaller than almost all homes nearby

Lot size0.2 ac
SmallerTypical 0.25 acBigger

Bigger than 40% of homes nearby

Year built1932
OlderTypical 1960Newer

Newer than 31% of homes nearby

How 420 N Ridgley St ranks against every home in each area.
MeasureThis homeAlgona 50511Kossuth County
Estimated valuepricier than$66,57510% of homes20% of homes
Price per ft²pricier than$14867% of homes79% of homes
Living areabigger than450 ft²almost no homesalmost no homes
Lot sizebigger than0.2 ac40% of homes28% of homes
Year builtnewer than193231% of homes40% of homes

About 420 N Ridgley St

How much is 420 N Ridgley St, Algona, IA worth?

The TopHap Estimate for 420 N Ridgley St, Algona, IA is $66,575 as of Aug 30, 2026. The likely range is $40,946 to $92,204. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 420 N Ridgley St, Algona, IA last sell?

420 N Ridgley St, Algona, IA last sold on Aug 8, 2007 for $28,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 420 N Ridgley St, Algona, IA?

420 N Ridgley St, Algona, IA has 450 square feet of living space and a 0.20-acre lot.

When was 420 N Ridgley St, Algona, IA built?

420 N Ridgley St, Algona, IA was built in 1932, making it 94 years old. The building has 1 story.

What schools serve 420 N Ridgley St, Algona, IA?

420 N Ridgley St, Algona, IA is assigned to Bryant Elementary School (elementary); Algona High School (high), rated C+; Algona Middle School (middle), rated A. All sit in Algona Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 420 N Ridgley St, Algona, IA compare to other homes in Algona 50511?

Among the 3,038 homes in Algona 50511, it is worth more than 10% of them ($66,575 against a typical $160,000), its price per square foot is higher than 67% of them ($148 against a typical $117), it is bigger than almost none of them (450 ft² against a typical 1,435 ft²), its lot is bigger than 40% of them (0.2 ac against a typical 0.25 ac) and it is newer than 31% of them (1932 against a typical 1960). Measured against all of Kossuth County, it is worth more than 20% 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 420 N Ridgley St, Algona, IA?

The 2025 property tax bill for 420 N Ridgley St, Algona, IA was $714. The county assessed it at $45,170.

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