Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$128,090$68 / 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 86How 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
Last sold for $51,000 on Apr 22, 2021

320 PLUM ST

AUBURN, IA 51433
5
Beds
1
Baths
1,892 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.
0.34 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.
2
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.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$128K
$110K low$146K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$51,000 · Apr 22, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$662 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$56,180 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$5,810
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$50,370
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$56,180
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$56,180

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyCALHOUN
Lot (acres)The size of the land the home sits on, from county records.0.34
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
HeatingThe type of heating system in the home.Yes
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 60 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.

H
South Central Calhoun High SchoolB-
High · Grades 9–12 · 6.4 mi
M
South Central Calhoun Middle SchoolC-
Middle · Grades 4–8 · 11.6 mi
E
South Central Calhoun Elementary SchoolB
Elementary · Grades PK–3 · 12.6 mi

District: South Central Calhoun Community School District

Neighborhood · ZIP 51433These 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.84
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.15

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.10%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.7%
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.454
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.$87,589
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$99,607
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.32 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.61%

Owner Tools

Do you own this home?
Claim this home

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

320 Plum 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.

  • Costs less per square foot than 67% of homes in Calhoun County
  • Bigger than 75% of homes in Calhoun County
  • Older than 70% of homes in Calhoun County

What homes are worth in Auburn 51433

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

This home
$31K$472K

This home is worth more than 59% of homes in Auburn 51433.

How it measures up in Auburn 51433

The dot is this home. The mark in the middle is the typical home in Auburn 51433.

Estimated value$128,090
CheaperTypical $107,948Pricier

Pricier than 59% of homes nearby

Price per ft²$68
CheaperTypical $76Pricier

Pricier than 46% of homes nearby

Living area1,892 ft²
SmallerTypical 1,588 ft²Bigger

Bigger than 71% of homes nearby

Lot size0.34 ac
SmallerTypical 1 acBigger

Bigger than 42% of homes nearby

Year built1900
OlderTypical 1918Newer

Newer than 37% of homes nearby

How 320 Plum St ranks against every home in each area.
MeasureThis homeAuburn 51433Calhoun County
Estimated valuepricier than$128,09059% of homes47% of homes
Price per ft²pricier than$6846% of homes33% of homes
Living areabigger than1,892 ft²71% of homes75% of homes
Lot sizebigger than0.34 ac42% of homes53% of homes
Year builtnewer than190037% of homes30% of homes

About 320 Plum St

How much is 320 Plum St, Auburn, IA worth?

The TopHap Estimate for 320 Plum St, Auburn, IA is $128,090 as of Sep 24, 2026. The likely range is $109,947 to $146,233. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 320 Plum St, Auburn, IA last sell?

320 Plum St, Auburn, IA last sold on Apr 22, 2021 for $51,000, according to the county's recorded deed.

How big is 320 Plum St, Auburn, IA?

320 Plum St, Auburn, IA has 5 bedrooms, 1 bathrooms, 1,892 square feet of living space and a 0.34-acre lot.

When was 320 Plum St, Auburn, IA built?

320 Plum St, Auburn, IA was built in 1900, making it 126 years old. The building has 2 stories.

What schools serve 320 Plum St, Auburn, IA?

320 Plum St, Auburn, IA is assigned to South Central Calhoun High School (high), rated B-; South Central Calhoun Middle School (middle), rated C-; South Central Calhoun Elementary School (elementary), rated B. All sit in South Central Calhoun Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 320 Plum St, Auburn, IA compare to other homes in Auburn 51433?

Among the 329 homes in Auburn 51433, it is worth more than 59% of them ($128,090 against a typical $107,948), its price per square foot is higher than 46% of them ($68 against a typical $76), it is bigger than 71% of them (1,892 ft² against a typical 1,588 ft²), its lot is bigger than 42% of them (0.34 ac against a typical 1 ac) and it is newer than 37% of them (1900 against a typical 1918). Measured against all of Calhoun County, it is worth more than 47% 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 320 Plum St, Auburn, IA?

The 2026 property tax bill for 320 Plum St, Auburn, IA was $662. The county assessed it at $56,180.

More homes on Plum St

Closest homes

More homes in Auburn 51433

Assigned schools

Explore the area

See this home in context

Open 320 Plum St on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map