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Single Family ResidenceResidential
$382,066$184 / 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

45181 KNOTTS DR

CALLAWAY, MD 20620
2
Baths
2,072 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.
2.86 ac
Lot SizeThe size of the land the home sits on, from county records.
1975
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$382K
$357K low$407K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,040 (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.$283,633 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$276,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$297,500

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.50
37
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
26
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
82
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
86
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
23
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.7 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.minimal

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
CountyST. MARY'S
Lot (acres)The size of the land the home sits on, from county records.2.86
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Baseboard
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.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.Deck · 378 ft²

Transaction History(1)

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
Piney Point Elementary SchoolA
Elementary · Grades PK–5 · 4.2 mi
M
Spring Ridge Middle SchoolC
Middle · Grades 6–8 · 6.1 mi
H
Leonardtown High SchoolC
High · Grades 9–12 · 6.2 mi

District: St. Marys County Public Schools

Neighborhood · ZIP 20620These 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.90
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.94
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.30

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.23%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.8%
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.1,369
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.294 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$134,224
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$138,818
Average tempThe average temperature here across a full year.57°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

45181 Knotts Dr 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 86% of homes in Callaway 20620
  • Has a bigger lot than 83% of homes in St. Mary's County
  • Older than 87% of homes in Callaway 20620

What homes are worth in Callaway 20620

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

This home
$209K$773K

This home is worth more than 40% of homes in Callaway 20620.

How it measures up in Callaway 20620

The dot is this home. The mark in the middle is the typical home in Callaway 20620.

Estimated value$382,066
CheaperTypical $435,084Pricier

Pricier than 40% of homes nearby

Price per ft²$184
CheaperTypical $214Pricier

Pricier than 14% of homes nearby

Living area2,072 ft²
SmallerTypical 1,782 ft²Bigger

Bigger than 63% of homes nearby

Lot size2.86 ac
SmallerTypical 1.5 acBigger

Bigger than 79% of homes nearby

Year built1975
OlderTypical 1995Newer

Newer than 13% of homes nearby

How 45181 Knotts Dr ranks against every home in each area.
MeasureThis homeCallaway 20620St. Mary's County
Estimated valuepricier than$382,06640% of homes37% of homes
Price per ft²pricier than$18414% of homes14% of homes
Living areabigger than2,072 ft²63% of homes62% of homes
Lot sizebigger than2.86 ac79% of homes83% of homes
Year builtnewer than197513% of homes26% of homes

About 45181 Knotts Dr

How much is 45181 Knotts Dr, Callaway, MD worth?

The TopHap Estimate for 45181 Knotts Dr, Callaway, MD is $382,066 as of Sep 24, 2026. The likely range is $357,314 to $406,818. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 45181 Knotts Dr, Callaway, MD last sell?

45181 Knotts Dr, Callaway, MD last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 45181 Knotts Dr, Callaway, MD?

45181 Knotts Dr, Callaway, MD has 2 bathrooms, 2,072 square feet of living space and a 2.86-acre lot.

When was 45181 Knotts Dr, Callaway, MD built?

45181 Knotts Dr, Callaway, MD was built in 1975, making it 51 years old. It is a conventional home. The building has 1 story.

What schools serve 45181 Knotts Dr, Callaway, MD?

45181 Knotts Dr, Callaway, MD is assigned to Piney Point Elementary School (elementary), rated A; Spring Ridge Middle School (middle), rated C; Leonardtown High School (high), rated C. All sit in St. Marys County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 45181 Knotts Dr, Callaway, MD compare to other homes in Callaway 20620?

Among the 489 homes in Callaway 20620, it is worth more than 40% of them ($382,066 against a typical $435,084), its price per square foot is higher than 14% of them ($184 against a typical $214), it is bigger than 63% of them (2,072 ft² against a typical 1,782 ft²), its lot is bigger than 79% of them (2.86 ac against a typical 1.5 ac) and it is newer than 13% of them (1975 against a typical 1995). Measured against all of St. Mary's County, it is worth more than 37% 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 45181 Knotts Dr, Callaway, MD?

The 2025 property tax bill for 45181 Knotts Dr, Callaway, MD was $3,040. The county assessed it at $283,633.

More homes on Knotts Dr

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