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TownhouseResidential
$137,940$139 / 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 94How 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 $89,900 on Nov 15, 2017

421 JOPLIN ST

BALTIMORE, MD 21224
1
Baths
990 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.
1,386 ft²
Lot SizeThe size of the land the home sits on, from county records.
1952
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$138K
$130K 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.$89,900 · Nov 15, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,680 (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.$114,100 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$25,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$89,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$105,533
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$114,100

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Townhouse
StyleThe architectural style of the home, such as ranch or colonial.Townhouse
CountyBALTIMORE CITY
Lot (acres)The size of the land the home sits on, from county records.0.03
ConstructionThe main material the home's frame and walls are built from.Brick
RoofThe main material covering the roof, such as asphalt shingle or tile.Builtup (layered 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.Porch · 132 ft²

Transaction History(3)

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
Patterson High SchoolF
High · Grades 9–12 · 0.3 mi
E
Graceland Park/O'Donnell Heights Elementary/Middle SchoolC+
Elementary · Grades PK–8 · 0.5 mi

District: Baltimore City Public Schools

Neighborhood · ZIP 21224These 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 100.44

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.90%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.26%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.15%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.54,695
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.5,175 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$91,972
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$113,257
Average tempThe average temperature here across a full year.56°F
Annual precipHow much rain and melted snow falls here in a typical year.45 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.57%

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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

421 Joplin 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 95% of homes in Bayview
  • Costs less per square foot than 78% of homes in Baltimore 21224
  • Smaller than 82% of homes in Baltimore city County
  • Has a bigger lot than 68% of homes in Baltimore 21224
  • Among the newest homes in Bayview

What homes are worth in Baltimore 21224

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

This home
$81K$650K

This home is worth more than 14% of homes in Baltimore 21224.

How it measures up in Baltimore 21224

The dot is this home. The mark in the middle is the typical home in Baltimore 21224.

Estimated value$137,940
CheaperTypical $227,665Pricier

Pricier than 14% of homes nearby

Price per ft²$139
CheaperTypical $189Pricier

Pricier than 22% of homes nearby

Living area990 ft²
SmallerTypical 1,200 ft²Bigger

Bigger than 20% of homes nearby

Lot size1,386 ft²
SmallerTypical 1,050 ft²Bigger

Bigger than 68% of homes nearby

Year built1952
OlderTypical 1920Newer

Newer than 77% of homes nearby

How 421 Joplin St ranks against every home in each area.
MeasureThis homeBayviewBaltimore 21224Baltimore city County
Estimated valuepricier than$137,9405% of homes14% of homes31% of homes
Price per ft²pricier than$13935% of homes22% of homes42% of homes
Living areabigger than990 ft²28% of homes20% of homes18% of homes
Lot sizebigger than1,386 ft²36% of homes68% of homes38% of homes
Year builtnewer than1952almost all homes77% of homes82% of homes

About 421 Joplin St

How much is 421 Joplin St, Baltimore, MD worth?

The TopHap Estimate for 421 Joplin St, Baltimore, MD is $137,940 as of Sep 24, 2026. The likely range is $129,610 to $146,270. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 421 Joplin St, Baltimore, MD last sell?

421 Joplin St, Baltimore, MD last sold on Nov 15, 2017 for $89,900, according to the county's recorded deed.

How big is 421 Joplin St, Baltimore, MD?

421 Joplin St, Baltimore, MD has 1 bathrooms, 990 square feet of living space and a 0.03-acre lot.

When was 421 Joplin St, Baltimore, MD built?

421 Joplin St, Baltimore, MD was built in 1952, making it 74 years old. It is a townhouse home. The building has 2 stories.

What schools serve 421 Joplin St, Baltimore, MD?

421 Joplin St, Baltimore, MD is assigned to Patterson High School (high), rated F; Graceland Park/O'Donnell Heights Elementary/Middle School (elementary), rated C+. All sit in Baltimore City Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 421 Joplin St, Baltimore, MD compare to other homes in Baltimore 21224?

Among the 20,736 homes in Baltimore 21224, it is worth more than 14% of them ($137,940 against a typical $227,665), its price per square foot is higher than 22% of them ($139 against a typical $189), it is bigger than 20% of them (990 ft² against a typical 1,200 ft²), its lot is bigger than 68% of them (1,386 ft² against a typical 1,050 ft²) and it is newer than 77% of them (1952 against a typical 1920). Measured against all of Baltimore city County, it is worth more than 31% 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 421 Joplin St, Baltimore, MD?

The 2025 property tax bill for 421 Joplin St, Baltimore, MD was $2,680. The county assessed it at $114,100.

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