ZIP Code 78664 - Round Rock Texas

ZIP Code 78664 is located in Round Rock Texas. Portions of 78664 are also in Pflugerville. 78664 is primarily within Williamson County, with some portions in Travis County. Regionally, it is located in Metro Austin.

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ZIP Code 78664 Quick Stats

ZIP Code NameRound Rock
Primary CountyWilliamson County
ZIP Code TypeStandard
Population (2022)62,168
Area Code(s)512 / 737
Current Time
CDT

ZIP Code 78664 Map

78664 Demographics

78664 can be classified socioeconomically as Middle Class class compared to other ZIP Codes in Texas based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 78664 is White. The majority race/ethnicity attending public schools in 78664 is Hispanic. The current unemployment level in 78664 is 3.0%.

Population62,168
Population Growth Rate-1.97%
Population Density3,789 People per Square Mile
Total Households18,566
Percentage High Income Households3.8%
Median Houshold Income (2021)$80,403
Average Adjusted Gross Income (2020)$65,880
Current Unemployment Rate (February 2024)3.0%
Majority Race/EthnictyWhite - 55.41%
Public School Majority Race/EthnictyHispanic - 42.09%

78664 Race/Ethnicty Breakdown

Race/EthnictyTotalPercentage
White39,07655.41%
Black8,39211.9%
Hispanic19,47127.61%
Asian3,2674.63%
Native American3120.44%
Hawaiian/Pac. Islander00%

78664 Public School Race/Ethnicty Breakdown

Race/EthnictyTotalPercentage
White6,02832.45%
Black2,61514.08%
Hispanic8,17644.02%
Asian1,6188.71%
Native American890.48%
Hawaiian/Pac. Islander490.26%

78664 Educational Attainment Levels

Highest Education Level AttainedTotalPercentage
Less Than 1 Year of College3,24711.08%
Bachelor Degree7,09324.19%
High School Diploma6,01420.51%
No High School Diploma7042.4%
GED or Alternate1,1543.94%
1 or More Years of College6,03620.59%
Associates Degree2,4958.51%
Masters Degree2,0637.04%
Professional Degree2790.95%
Doctorate Degree2330.79%

78664 Geography

Coordinates30.50427628,-97.64624023
Adjacent ZIP Codes
Cities/Towns in 78664
RegionMetro Austin
Metropolitan/Micropolitan Stat AreaAustin-Round Rock-Georgetown, TX
Time ZoneCentral Daylight Time
IANA TimezoneAmerica/Chicago
Area16 Square Miles

78664 Politics

US Congressional Districts in 78664
Texas State Senate Districts in 78664
Texas State House of Representatives Districts in 78664

78664 Weather and Climate Data

Plant Hardiness ZoneZone 8b: 15F to 20F
Average First Frost DateNovember 21 - 31
Average Last Frost DateMarch 11 - 20
Koppen-Geiger Climate ZoneCfa - Humid Subtropical Climate
Ecoregion32a - Northern Blackland Prairie

78664 Annual Climate Data

JanFebMarAprMayJunJulAugSepOctNovDecAnnual
Avg Min Temp (°F)37414855647072716657474056
Avg Max Temp (°F)61667380869296969082706379
Avg Precip (In.)2.072.352.392.784.863.821.832.123.193.882.882.5634.73

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