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Rural ResidenceResidential
$730,406$319 / 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 83How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026

3998 KARPER HARBOR RD

CASCADE, IA 52033
3
Beds
5 / 4
Baths
2,289 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.
26.3 ac
Lot SizeThe size of the land the home sits on, from county records.
1936
Year BuiltThe year the home was originally built, according to county records.
2
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.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$730K
$608K low$853K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,758 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$197,315 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$21,215
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$176,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$176,352
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$197,315

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.51
99
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
9
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.
60
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
23
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.168 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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.1 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
StyleThe architectural style of the home, such as ranch or colonial.Traditional/Old
CountyDubuque
Lot (acres)The size of the land the home sits on, from county records.26.30
ConstructionThe main material the home's frame and walls are built from.Brick
HeatingThe type of heating system in the home.Forced Air
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

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

E
Cascade Elementary SchoolA-
Elementary · Grades PK–5 · 3.8 mi
M
Cascade Jr./Sr. High SchoolA
Middle · Grades 6–12 · 3.8 mi

District: Western Dubuque Community School District

Neighborhood · ZIP 52033These 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.85
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.76
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.17

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.15%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.8%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.3,031
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.28 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$80,299
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$101,125
Average tempThe average temperature here across a full year.47°F
Annual precipHow much rain and melted snow falls here in a typical year.35 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

3998 Karper Harbor 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.

  • Among the most valuable homes in Cascade 52033
  • Costs more per square foot than 97% of homes in Cascade 52033
  • Bigger than 89% of homes in Cascade 52033
  • Has a bigger lot than 97% of homes in Dubuque County
  • Older than 80% of homes in Cascade 52033

What homes are worth in Cascade 52033

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

This home
$100K$697K

This home is worth more than almost all homes in Cascade 52033.

How it measures up in Cascade 52033

The dot is this home. The mark in the middle is the typical home in Cascade 52033.

Estimated value$730,406
CheaperTypical $259,704Pricier

Pricier than almost all homes nearby

Price per ft²$319
CheaperTypical $170Pricier

Pricier than 97% of homes nearby

Living area2,289 ft²
SmallerTypical 1,578 ft²Bigger

Bigger than 89% of homes nearby

Lot size26.3 ac
SmallerTypical 0.33 acBigger

Bigger than 89% of homes nearby

Year built1936
OlderTypical 2002Newer

Newer than 20% of homes nearby

How 3998 Karper Harbor Rd ranks against every home in each area.
MeasureThis homeCascade 52033Dubuque County
Estimated valuepricier than$730,406almost all homes98% of homes
Price per ft²pricier than$31997% of homes97% of homes
Living areabigger than2,289 ft²89% of homes87% of homes
Lot sizebigger than26.3 ac89% of homes97% of homes
Year builtnewer than193620% of homes26% of homes

About 3998 Karper Harbor Rd

How much is 3998 Karper Harbor Rd, Cascade, IA worth?

The TopHap Estimate for 3998 Karper Harbor Rd, Cascade, IA is $730,406 as of Oct 21, 2026. The likely range is $607,561 to $853,251. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 3998 Karper Harbor Rd, Cascade, IA?

3998 Karper Harbor Rd, Cascade, IA has 3 bedrooms, 5 bathrooms, 2,289 square feet of living space and a 26.30-acre lot.

When was 3998 Karper Harbor Rd, Cascade, IA built?

3998 Karper Harbor Rd, Cascade, IA was built in 1936, making it 90 years old. It is a traditional/old home. The building has 2 stories.

What schools serve 3998 Karper Harbor Rd, Cascade, IA?

3998 Karper Harbor Rd, Cascade, IA is assigned to Cascade Elementary School (elementary), rated A-; Cascade Jr./Sr. High School (middle), rated A. All sit in Western Dubuque Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3998 Karper Harbor Rd, Cascade, IA compare to other homes in Cascade 52033?

Among the 1,404 homes in Cascade 52033, it is worth more than almost all of them ($730,406 against a typical $259,704), its price per square foot is higher than 97% of them ($319 against a typical $170), it is bigger than 89% of them (2,289 ft² against a typical 1,578 ft²), its lot is bigger than 89% of them (26.3 ac against a typical 0.33 ac) and it is newer than 20% of them (1936 against a typical 2002). Measured against all of Dubuque County, it is worth more than 98% 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 3998 Karper Harbor Rd, Cascade, IA?

The 2024 property tax bill for 3998 Karper Harbor Rd, Cascade, IA was $1,758. The county assessed it at $197,315.

Closest homes

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Assigned schools

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