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Single Family ResidenceResidential
$383,920$265 / 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 97How 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 $310,000 on Jun 30, 2022

620 SAPPHIRE CIR

DUBUQUE, IA 52001
4
Beds
3
Baths
1,448 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.
0.29 ac
Lot SizeThe size of the land the home sits on, from county records.
2018
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
9
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$384K
$373K low$394K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$310,000 · Jun 30, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,424 (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.$314,800 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$62,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$252,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$307,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$314,800

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.29
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
11
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
69
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
61
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
5
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

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
StyleThe architectural style of the home, such as ranch or colonial.Split Foyer
CountyDubuque
Lot (acres)The size of the land the home sits on, from county records.0.29
ConstructionThe main material the home's frame and walls are built from.Wood Frame
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Concrete
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Central
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 · 216 ft²Patio · 216 ft²Porch · 40 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.

M
Thomas Jefferson Middle SchoolD+
Middle · Grades 6–8 · 1.9 mi
E
Marshall Elementary SchoolC-
Elementary · Grades PK–5 · 2.0 mi
H
Hempstead High SchoolC
High · Grades 9–12 · 4.0 mi

District: Dubuque Community School District

Neighborhood · ZIP 52001These 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.114
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.78
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.20

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.20%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.14%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.44,199
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,457 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$63,385
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$81,043
Average tempThe average temperature here across a full year.48°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

620 Sapphire Cir 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 92% of homes in Dubuque 52001
  • Costs more per square foot than 96% of homes in Dubuque 52001
  • Has a bigger lot than 79% of homes in Dubuque 52001
  • Among the newest homes in Dubuque 52001

What homes are worth in Dubuque 52001

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

This home
$99K$585K

This home is worth more than 92% of homes in Dubuque 52001.

How it measures up in Dubuque 52001

The dot is this home. The mark in the middle is the typical home in Dubuque 52001.

Estimated value$383,920
CheaperTypical $209,236Pricier

Pricier than 92% of homes nearby

Price per ft²$265
CheaperTypical $164Pricier

Pricier than 96% of homes nearby

Living area1,448 ft²
SmallerTypical 1,352 ft²Bigger

Bigger than 58% of homes nearby

Lot size0.29 ac
SmallerTypical 0.16 acBigger

Bigger than 79% of homes nearby

Year built2018
OlderTypical 1950Newer

Newer than almost all homes nearby

How 620 Sapphire Cir ranks against every home in each area.
MeasureThis homeDubuque 52001Dubuque County
Estimated valuepricier than$383,92092% of homes76% of homes
Price per ft²pricier than$26596% of homes86% of homes
Living areabigger than1,448 ft²58% of homes47% of homes
Lot sizebigger than0.29 ac79% of homes58% of homes
Year builtnewer than2018almost all homes97% of homes

About 620 Sapphire Cir

How much is 620 Sapphire Cir, Dubuque, IA worth?

The TopHap Estimate for 620 Sapphire Cir, Dubuque, IA is $383,920 as of Aug 30, 2026. The likely range is $373,428 to $394,412. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 620 Sapphire Cir, Dubuque, IA last sell?

620 Sapphire Cir, Dubuque, IA last sold on Jun 30, 2022 for $310,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 620 Sapphire Cir, Dubuque, IA?

620 Sapphire Cir, Dubuque, IA has 4 bedrooms, 3 bathrooms, 1,448 square feet of living space and a 0.29-acre lot.

When was 620 Sapphire Cir, Dubuque, IA built?

620 Sapphire Cir, Dubuque, IA was built in 2018, making it 8 years old. It is a split foyer home. The building has 1 story.

What schools serve 620 Sapphire Cir, Dubuque, IA?

620 Sapphire Cir, Dubuque, IA is assigned to Thomas Jefferson Middle School (middle), rated D+; Marshall Elementary School (elementary), rated C-; Hempstead High School (high), rated C. All sit in Dubuque Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 620 Sapphire Cir, Dubuque, IA compare to other homes in Dubuque 52001?

Among the 14,245 homes in Dubuque 52001, it is worth more than 92% of them ($383,920 against a typical $209,236), its price per square foot is higher than 96% of them ($265 against a typical $164), it is bigger than 58% of them (1,448 ft² against a typical 1,352 ft²), its lot is bigger than 79% of them (0.29 ac against a typical 0.16 ac) and it is newer than almost all of them (2018 against a typical 1950). Measured against all of Dubuque County, it is worth more than 76% 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 620 Sapphire Cir, Dubuque, IA?

The 2024 property tax bill for 620 Sapphire Cir, Dubuque, IA was $4,424. The county assessed it at $314,800.

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