US ZIP Code Map

ZIP code

78664

Round Rock, TX

STANDARD

78664 covers Round Rock in Williamson County, with 62,272 people in the ACS estimate.

Map of 78664, Round Rock

ZIP code map

ACS population

62,272

Median household income

$85,919

Median home value

$317,400

About ZIP code 78664

Type

STANDARD

City

Round Rock

County

Williamson County

Timezone

America/Chicago

Area codes

512, 737

Land area

16.6 sq mi

Water area

0.09 sq mi

Households

24,259

Median gross rent

$1,645

More enterprise fields

Timezone
America/Chicago
Area Codes
512, 737
World Region
NA
Country
US
Housing Count
23,098
Irs Estimated Households
27,970
Population Count
60,287
Irs Estimated Population
51,270

People in 78664

Race

  • White29,365
  • Black or African American7,300
  • American Indian or Alaska Native652
  • Asian4,056
  • Native Hawaiian and Pacific Islander129
  • Other race7,353
  • Two or more races11,432

Hispanic or Latino (any race): 21,595

Age

  • Under 108,065
  • 10 to 198,826
  • 20 to 298,732
  • 30 to 3910,211
  • 40 to 498,650
  • 50 to 597,114
  • 60 to 695,147
  • 70 to 792,574
  • 80 and older968

Income and housing in 78664

Poverty rate

10.5%

Median earnings

$45,700

Median household income

$85,919

Median home value

$317,400

Median gross rent

$1,645

Education

  • High school graduate90.2%
  • Bachelor's degree34.6%
  • Graduate degree12.1%

Places covering 78664

Cities and places

11.3% of this ZIP is outside city limits (a real overlap row, not missing data).

Population history for 78664

IRS populationACS population
74,21937,109020052023

Hover a year for IRS and ACS values.

ZIP codes near 78664

  1. 78680Round Rock0.0 miPop 1,279 · Income —
  2. 78682Round Rock0.0 miPop 56 · Income —
  3. 78683Round Rock0.0 miPop 726 · Income —
  4. 78665Round Rock2.7 miPop 64,087 · Income $117,240
  5. 78681Round Rock3.8 miPop 58,531 · Income $136,215
  6. 78728Austin4.3 miPop 26,776 · Income $74,048
  7. 78651Mc Neil4.8 miPop 38 · Income —
  8. 78717Austin5.0 miPop 36,085 · Income $140,483
  9. 78660Pflugerville5.7 miPop 118,437 · Income $109,522
  10. 78691Pflugerville5.7 miPop 1,330 · Income —
  11. 78727Austin6.3 miPop 30,894 · Income $107,194
  12. 78729Austin6.4 miPop 30,440 · Income $81,589

ZIP code 78664 FAQ

What city is ZIP code 78664 in?
78664 is in Round Rock, TX.
What county is 78664 in?
78664 is in Williamson County.
What is the median household income in 78664?
The median household income in 78664 is $85,919.
Which ZIP codes are near 78664?
Use the radius tool on this page to list ZIP codes within a chosen distance of 78664.