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Single Family ResidenceResidential
$271,224$166 / 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 Sep 24, 2026
Last sold for $134,900 on Jun 23, 2003

138 MILL ST

GREENSBORO, MD 21639
2
Baths
1,638 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.
0.18 ac
Lot SizeThe size of the land the home sits on, from county records.
2003
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$271K
$264K low$278K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$134,900 · Jun 23, 2003

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,413 (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.$222,433 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$209,667
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$235,200

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.50 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.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Conventional
CountyCAROLINE
Lot (acres)The size of the land the home sits on, from county records.0.18
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Electric
CoolingThe type of cooling or air conditioning in the home.Yes
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.Shed · 160 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.

Foreclosure Filings(2)

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

E
Greensboro Elementary SchoolB+
Elementary · Grades PK–5 · 0.9 mi
H
North Caroline High SchoolC-
High · Grades 9–12 · 4.7 mi
M
Lockerman Middle SchoolC
Middle · Grades 6–8 · 5.7 mi

District: Caroline County Public Schools

Neighborhood · ZIP 21639These 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.123
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.87
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.39

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.9.6%
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.0.9%
PopulationHow many people live in this area.4,691
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.140 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$65,841
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$87,893
Average tempThe average temperature here across a full year.56°F
Annual precipHow much rain and melted snow falls here in a typical year.44 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

138 Mill 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 75% of homes in Greensboro 21639
  • Bigger than 70% of homes in Greensboro
  • Has a smaller lot than 90% of homes in Caroline County
  • Newer than 82% of homes in Greensboro 21639

What homes are worth in Greensboro 21639

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

This home
$98K$762K

This home is worth more than 38% of homes in Greensboro 21639.

How it measures up in Greensboro 21639

The dot is this home. The mark in the middle is the typical home in Greensboro 21639.

Estimated value$271,224
CheaperTypical $298,727Pricier

Pricier than 38% of homes nearby

Price per ft²$166
CheaperTypical $205Pricier

Pricier than 25% of homes nearby

Living area1,638 ft²
SmallerTypical 1,490 ft²Bigger

Bigger than 58% of homes nearby

Lot size0.18 ac
SmallerTypical 0.71 acBigger

Bigger than 15% of homes nearby

Year built2003
OlderTypical 1986Newer

Newer than 82% of homes nearby

How 138 Mill St ranks against every home in each area.
MeasureThis homeGreensboroGreensboro 21639Caroline County
Estimated valuepricier than$271,22462% of homes38% of homes38% of homes
Price per ft²pricier than$16640% of homes25% of homes34% of homes
Living areabigger than1,638 ft²70% of homes58% of homes52% of homes
Lot sizebigger than0.18 ac37% of homes15% of homes10% of homes
Year builtnewer than200377% of homes82% of homes81% of homes

About 138 Mill St

How much is 138 Mill St, Greensboro, MD worth?

The TopHap Estimate for 138 Mill St, Greensboro, MD is $271,224 as of Sep 24, 2026. The likely range is $264,134 to $278,314. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 138 Mill St, Greensboro, MD last sell?

138 Mill St, Greensboro, MD last sold on Jun 23, 2003 for $134,900, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 138 Mill St, Greensboro, MD?

138 Mill St, Greensboro, MD has 2 bathrooms, 1,638 square feet of living space and a 0.18-acre lot.

When was 138 Mill St, Greensboro, MD built?

138 Mill St, Greensboro, MD was built in 2003, making it 23 years old. It is a conventional home. The building has 1 story.

What schools serve 138 Mill St, Greensboro, MD?

138 Mill St, Greensboro, MD is assigned to Greensboro Elementary School (elementary), rated B+; North Caroline High School (high), rated C-; Lockerman Middle School (middle), rated C. All sit in Caroline County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 138 Mill St, Greensboro, MD compare to other homes in Greensboro 21639?

Among the 1,684 homes in Greensboro 21639, it is worth more than 38% of them ($271,224 against a typical $298,727), its price per square foot is higher than 25% of them ($166 against a typical $205), it is bigger than 58% of them (1,638 ft² against a typical 1,490 ft²), its lot is bigger than 15% of them (0.18 ac against a typical 0.71 ac) and it is newer than 82% of them (2003 against a typical 1986). Measured against all of Caroline County, it is worth more than 38% 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 138 Mill St, Greensboro, MD?

The 2025 property tax bill for 138 Mill St, Greensboro, MD was $3,413. The county assessed it at $222,433.

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