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Single Family ResidenceResidential
$734,589$468 / 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 91How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $117,500 on Sep 26, 2025

20747 MERCER AVE

ROCK HALL, MD 21661
2
Baths
1,568 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.
1.22 ac
Lot SizeThe size of the land the home sits on, from county records.
2004
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$735K
$668K low$801K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$117,500 · Sep 26, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,637 (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.$504,433 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$460,867
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$548,000

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.30 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.48%
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
CountyKENT
Lot (acres)The size of the land the home sits on, from county records.1.22
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Heat Pump
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.Mixed
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 · 864 ft²Porch · 72 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.

E
Rock Hall Elementary SchoolC+
Elementary · Grades PK–5 · 0.9 mi
M
Kent County Middle SchoolD
Middle · Grades 6–8 · 11.7 mi
H
Kent County High SchoolC
High · Grades 9–12 · 13.4 mi

District: Kent County Public Schools

Neighborhood · ZIP 21661These 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.167
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.91
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.45

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.71%
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.8.3%
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.2,599
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.48 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$76,089
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$100,148
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

20747 Mercer 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 more than 94% of homes in Rock Hall
  • Costs more per square foot than 95% of homes in Rock Hall
  • Has a bigger lot than 96% of homes in Rock Hall
  • Newer than 84% of homes in Kent County

What homes are worth in Rock Hall 21661

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

This home
$146K$2M

This home is worth more than 83% of homes in Rock Hall 21661.

How it measures up in Rock Hall 21661

The dot is this home. The mark in the middle is the typical home in Rock Hall 21661.

Estimated value$734,589
CheaperTypical $373,140Pricier

Pricier than 83% of homes nearby

Price per ft²$468
CheaperTypical $244Pricier

Pricier than 91% of homes nearby

Living area1,568 ft²
SmallerTypical 1,620 ft²Bigger

Bigger than 47% of homes nearby

Lot size1.22 ac
SmallerTypical 0.47 acBigger

Bigger than 79% of homes nearby

Year built2004
OlderTypical 1970Newer

Newer than 82% of homes nearby

How 20747 Mercer Ave ranks against every home in each area.
MeasureThis homeRock HallRock Hall 21661Kent County
Estimated valuepricier than$734,58994% of homes83% of homes83% of homes
Price per ft²pricier than$46895% of homes91% of homes93% of homes
Living areabigger than1,568 ft²49% of homes47% of homes42% of homes
Lot sizebigger than1.22 ac96% of homes79% of homes69% of homes
Year builtnewer than200483% of homes82% of homes84% of homes

About 20747 Mercer Ave

How much is 20747 Mercer Ave, Rock Hall, MD worth?

The TopHap Estimate for 20747 Mercer Ave, Rock Hall, MD is $734,589 as of Jul 14, 2026. The likely range is $667,869 to $801,309. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20747 Mercer Ave, Rock Hall, MD last sell?

20747 Mercer Ave, Rock Hall, MD last sold on Sep 26, 2025 for $117,500, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 20747 Mercer Ave, Rock Hall, MD?

20747 Mercer Ave, Rock Hall, MD has 2 bathrooms, 1,568 square feet of living space and a 1.22-acre lot.

When was 20747 Mercer Ave, Rock Hall, MD built?

20747 Mercer Ave, Rock Hall, MD was built in 2004, making it 22 years old. It is a conventional home. The building has 1 story.

What schools serve 20747 Mercer Ave, Rock Hall, MD?

20747 Mercer Ave, Rock Hall, MD is assigned to Rock Hall Elementary School (elementary), rated C+; Kent County Middle School (middle), rated D; Kent County High School (high), rated C. All sit in Kent County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20747 Mercer Ave, Rock Hall, MD compare to other homes in Rock Hall 21661?

Among the 1,678 homes in Rock Hall 21661, it is worth more than 83% of them ($734,589 against a typical $373,140), its price per square foot is higher than 91% of them ($468 against a typical $244), it is bigger than 47% of them (1,568 ft² against a typical 1,620 ft²), its lot is bigger than 79% of them (1.22 ac against a typical 0.47 ac) and it is newer than 82% of them (2004 against a typical 1970). Measured against all of Kent County, it is worth more than 83% 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 20747 Mercer Ave, Rock Hall, MD?

The 2026 property tax bill for 20747 Mercer Ave, Rock Hall, MD was $7,637. The county assessed it at $504,433.

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