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Single Family ResidenceResidential
$557,566$235 / 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 96How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

621 ARMSTRONG DR

GEORGETOWN, TX 78633
2
Baths
2,370 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.
0.28 ac
Lot SizeThe size of the land the home sits on, from county records.
2006
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$558K
$534K low$581K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,657 (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.$529,680 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$84,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$445,680
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$530,361
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$529,680

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.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
CountyWILLIAMSON
Lot (acres)The size of the land the home sits on, from county records.0.28
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
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.Patio · 320 ft²Porch · 194 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.

Neighborhood · ZIP 78633These 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.31
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.90
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.16

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.35%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.6%
PopulationHow many people live in this area.33,515
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.399 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$98,576
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$124,220
Average tempThe average temperature here across a full year.67°F
Annual precipHow much rain and melted snow falls here in a typical year.35 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.60%

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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

621 Armstrong 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.

  • Worth more than 82% of homes in Sun City Texas
  • Costs more per square foot than 80% of homes in Williamson County
  • Bigger than 79% of homes in Sun City Texas
  • Has a bigger lot than 91% of homes in Sun City Texas

What homes are worth in Georgetown 78633

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

This home
$281K$1.1M

This home is worth more than 68% of homes in Georgetown 78633.

How it measures up in Georgetown 78633

The dot is this home. The mark in the middle is the typical home in Georgetown 78633.

Estimated value$557,566
CheaperTypical $448,817Pricier

Pricier than 68% of homes nearby

Price per ft²$235
CheaperTypical $224Pricier

Pricier than 63% of homes nearby

Living area2,370 ft²
SmallerTypical 2,052 ft²Bigger

Bigger than 63% of homes nearby

Lot size0.28 ac
SmallerTypical 0.21 acBigger

Bigger than 65% of homes nearby

Year built2006
OlderTypical 2007Newer

Newer than 47% of homes nearby

How 621 Armstrong Dr ranks against every home in each area.
MeasureThis homeSun City TexasGeorgetown 78633Williamson County
Estimated valuepricier than$557,56682% of homes68% of homes78% of homes
Price per ft²pricier than$23572% of homes63% of homes80% of homes
Living areabigger than2,370 ft²79% of homes63% of homes62% of homes
Lot sizebigger than0.28 ac91% of homes65% of homes73% of homes
Year builtnewer than200650% of homes47% of homes49% of homes

About 621 Armstrong Dr

How much is 621 Armstrong Dr, Georgetown, TX worth?

The TopHap Estimate for 621 Armstrong Dr, Georgetown, TX is $557,566 as of Aug 30, 2026. The likely range is $534,449 to $580,683. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 621 Armstrong Dr, Georgetown, TX last sell?

621 Armstrong Dr, Georgetown, TX last sold on Nov 10, 2011, according to the county's recorded deed.

How big is 621 Armstrong Dr, Georgetown, TX?

621 Armstrong Dr, Georgetown, TX has 2 bathrooms, 2,370 square feet of living space and a 0.28-acre lot.

When was 621 Armstrong Dr, Georgetown, TX built?

621 Armstrong Dr, Georgetown, TX was built in 2006, making it 20 years old. The building has 1 story.

How does 621 Armstrong Dr, Georgetown, TX compare to other homes in Georgetown 78633?

Among the 16,225 homes in Georgetown 78633, it is worth more than 68% of them ($557,566 against a typical $448,817), its price per square foot is higher than 63% of them ($235 against a typical $224), it is bigger than 63% of them (2,370 ft² against a typical 2,052 ft²), its lot is bigger than 65% of them (0.28 ac against a typical 0.21 ac) and it is newer than 47% of them (2006 against a typical 2007). Measured against all of Williamson County, it is worth more than 78% 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 621 Armstrong Dr, Georgetown, TX?

The 2025 property tax bill for 621 Armstrong Dr, Georgetown, TX was $2,657. The county assessed it at $529,680.

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