Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$137,941$154 / 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 77How 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

301 4TH AVE

PORTSMOUTH, IA 51565
3
Beds
2
Baths
896 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.
0.27 ac
Lot SizeThe size of the land the home sits on, from county records.
1962
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
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

$138K
$106K low$170K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,824 (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.$125,278 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$13,230
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$112,048
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$125,278
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$125,278

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.Ranch
CountySHELBY
Lot (acres)The size of the land the home sits on, from county records.0.27
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Block (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
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, Attached
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 · 360 ft²

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

M
Harlan Community Middle SchoolA-
Middle · Grades 6–8 · 9.4 mi
H
Harlan High SchoolB+
High · Grades 9–12 · 9.4 mi
E
Harlan Primary School
Elementary · Grades PK–2 · 9.4 mi

District: Harlan Community School District

Neighborhood · ZIP 51565These 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.104
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.89
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.19

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.16%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.3%
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.452
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.10 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$83,664
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$84,993
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.33 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.59%

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

301 4th Ave 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 87% of homes in Portsmouth 51565
  • Costs more per square foot than 65% of homes in Shelby County
  • Smaller than 95% of homes in Portsmouth 51565
  • Has a smaller lot than 82% of homes in Portsmouth 51565

What homes are worth in Portsmouth 51565

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

This home
$76K$511K

This home is worth more than 13% of homes in Portsmouth 51565.

How it measures up in Portsmouth 51565

The dot is this home. The mark in the middle is the typical home in Portsmouth 51565.

Estimated value$137,941
CheaperTypical $234,705Pricier

Pricier than 13% of homes nearby

Price per ft²$154
CheaperTypical $151Pricier

Pricier than 53% of homes nearby

Living area896 ft²
SmallerTypical 1,568 ft²Bigger

Bigger than 5% of homes nearby

Lot size0.27 ac
SmallerTypical 1.97 acBigger

Bigger than 18% of homes nearby

Year built1962
OlderTypical 1940Newer

Newer than 62% of homes nearby

How 301 4th Ave ranks against every home in each area.
MeasureThis homePortsmouth 51565Shelby County
Estimated valuepricier than$137,94113% of homes29% of homes
Price per ft²pricier than$15453% of homes65% of homes
Living areabigger than896 ft²5% of homes7% of homes
Lot sizebigger than0.27 ac18% of homes39% of homes
Year builtnewer than196262% of homes64% of homes

About 301 4th Ave

How much is 301 4th Ave, Portsmouth, IA worth?

The TopHap Estimate for 301 4th Ave, Portsmouth, IA is $137,941 as of Sep 24, 2026. The likely range is $105,719 to $170,163. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 301 4th Ave, Portsmouth, IA last sell?

301 4th Ave, Portsmouth, IA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 301 4th Ave, Portsmouth, IA?

301 4th Ave, Portsmouth, IA has 3 bedrooms, 2 bathrooms, 896 square feet of living space and a 0.27-acre lot.

When was 301 4th Ave, Portsmouth, IA built?

301 4th Ave, Portsmouth, IA was built in 1962, making it 64 years old. It is a ranch home. The building has 1 story.

What schools serve 301 4th Ave, Portsmouth, IA?

301 4th Ave, Portsmouth, IA is assigned to Harlan Community Middle School (middle), rated A-; Harlan High School (high), rated B+; Harlan Primary School (elementary). All sit in Harlan Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 301 4th Ave, Portsmouth, IA compare to other homes in Portsmouth 51565?

Among the 234 homes in Portsmouth 51565, it is worth more than 13% of them ($137,941 against a typical $234,705), its price per square foot is higher than 53% of them ($154 against a typical $151), it is bigger than 5% of them (896 ft² against a typical 1,568 ft²), its lot is bigger than 18% of them (0.27 ac against a typical 1.97 ac) and it is newer than 62% of them (1962 against a typical 1940). Measured against all of Shelby County, it is worth more than 29% 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 301 4th Ave, Portsmouth, IA?

The 2026 property tax bill for 301 4th Ave, Portsmouth, IA was $1,824. The county assessed it at $125,278.

More homes on 4th Ave

Closest homes

More homes in Portsmouth 51565

Assigned schools

Explore the area

See this home in context

Open 301 4th Ave 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