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Residential - Vacant LandResidential

599 S MAYS ST

ROUND ROCK, TX 78664
3
Baths
720 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.
6.06 ac
Lot SizeThe size of the land the home sits on, from county records.
1976
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,970 (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.$554,107 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$554,107
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$554,107
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$554,107

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.197 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.Residential - Vacant Land
CountyWILLIAMSON
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

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
Voigt Elementary SchoolC-
Elementary · Grades PK–5 · 0.4 mi
M
C.D. Fulkes Middle SchoolD-
Middle · Grades 6–8 · 0.6 mi
H
Cedar Ridge High SchoolB
High · Grades 9–12 · 2.2 mi

District: Round Rock Independent School District

Neighborhood · ZIP 78664These 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.87
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 100.13

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.24%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.6%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.72,016
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,336 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$88,209
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$105,122
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

599 S Mays 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.

  • Among the smallest homes in Round Rock 78664
  • Among the largest lots in Round Rock 78664
  • Older than 95% of homes in Round Rock 78664

How it measures up in Round Rock 78664

The dot is this home. The mark in the middle is the typical home in Round Rock 78664.

Living area720 ft²
SmallerTypical 1,778 ft²Bigger

Smaller than almost all homes nearby

Lot size6.06 ac
SmallerTypical 0.18 acBigger

Bigger than almost all homes nearby

Year built1976
OlderTypical 1998Newer

Newer than 5% of homes nearby

How 599 S Mays St ranks against every home in each area.
MeasureThis homeRound Rock 78664Williamson County
Living areabigger than720 ft²almost no homesalmost no homes
Lot sizebigger than6.06 acalmost all homes97% of homes
Year builtnewer than19765% of homes6% of homes

About 599 S Mays St

When did 599 S Mays St, Round Rock, TX last sell?

599 S Mays St, Round Rock, TX last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 599 S Mays St, Round Rock, TX?

599 S Mays St, Round Rock, TX has 3 bathrooms and 720 square feet of living space.

When was 599 S Mays St, Round Rock, TX built?

599 S Mays St, Round Rock, TX was built in 1976, making it 50 years old. The building has 1 story.

What schools serve 599 S Mays St, Round Rock, TX?

599 S Mays St, Round Rock, TX is assigned to Voigt Elementary School (elementary), rated C-; C.D. Fulkes Middle School (middle), rated D-; Cedar Ridge High School (high), rated B. All sit in Round Rock Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 599 S Mays St, Round Rock, TX compare to other homes in Round Rock 78664?

Among the 16,307 homes in Round Rock 78664, it is bigger than almost none of them (720 ft² against a typical 1,778 ft²), its lot is bigger than almost all of them (6.06 ac against a typical 0.18 ac) and it is newer than 5% of them (1976 against a typical 1998). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 599 S Mays St, Round Rock, TX?

The 2025 property tax bill for 599 S Mays St, Round Rock, TX was $9,970. The county assessed it at $554,107.

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