ZIP Code 78665
| ZIP Code | 78665 |
| City | ROUND ROCK |
| State | TX |
| Type | STANDARD |
| Post offices count | 1 (see all) |
| Total population | 59,935 (see all) |
Cities in ZIP Code 78665
Primary city: ROUND ROCK, TXPost offices
ROUND ROCK — Post Office™ 2250 DOUBLE CREEK DR ROUND ROCK, TX 78664-9998 MoreROUND ROCK — Post Office™2250 DOUBLE CREEK DR For facility accessibility, please call the Post Office. 1-800-ASK-USPS® (800-275-8777) Hours
Services at this Location Service hours may vary.
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Census data for ZIP Code 78665
Demographic and housing estimates in ZIP Code 78665
| Total population | 59,935 |
| Male | 30,671 |
| Female | 29,264 |
| Total population | 59,935 |
| Under 5 years | 4,811 |
| 5 to 9 years | 5,326 |
| 10 to 14 years | 4,652 |
| 15 to 19 years | 3,510 |
| 20 to 24 years | 3,070 |
| 25 to 34 years | 7,923 |
| 35 to 44 years | 11,203 |
| 45 to 54 years | 7,589 |
| 55 to 59 years | 3,381 |
| 60 to 64 years | 2,543 |
| 65 to 74 years | 4,078 |
| 75 to 84 years | 1,205 |
| 85 years and over | 644 |
| Median age (years) | 35.6 |
| Under 18 years | 17,167 |
| 16 years and over | 44,342 |
| 18 years and over | 42,768 |
| 21 years and over | 41,206 |
| 62 years and over | 7,579 |
| 65 years and over | 5,927 |
| Total population | 59,935 |
| One race | 52,053 |
| White | 38,344 |
| Black or African American | 5,884 |
| American Indian and Alaska Native | 152 |
| Asian | 5,246 |
| Native Hawaiian and Other Pacific Islander | 217 |
| Some other race | 2,210 |
| Two or more races | 7,882 |
| Citizen, VOTING AGE 18 and over population | 40,137 |
| Male Citizen, VOTING AGE 18 and over population | 20,350 |
| Female Citizen, VOTING AGE 18 and over population | 19,787 |
Social characteristics in ZIP Code 78665
| Total households | 21,317 |
| Family households (families) | 13,687 |
| Married-couple family | 1,121 |
| Male householder, no wife present, family | 2,492 |
| Female householder, no husband present, family | 1,583 |
| Nonfamily households | 4,017 |
| Average household size | 4,034 |
| Average family size | 2.81 |
Economic characteristics in ZIP Code 78665
| Total households | 21,317 |
| Less than $10,000 | 420 |
| $10,000 to $14,999 | 267 |
| $15,000 to $24,999 | 486 |
| $25,000 to $34,999 | 1,046 |
| $35,000 to $49,999 | 1,380 |
| $50,000 to $74,999 | 3,161 |
| $75,000 to $99,999 | 3,178 |
| $100,000 to $149,999 | 5,716 |
| $150,000 to $199,999 | 2,461 |
| $200,000 or more | 3,202 |
| Median household income (dollars) | 105,407 |
Housing characteristics in ZIP Code 78665
| Total housing units | 22,701 |
| Occupied housing units | 21,317 |
| Vacant housing units | 1,384 |
| Total housing units | 22,701 |
| 1-unit, detached | 17,097 |
| 1-unit, attached | 159 |
| 2 units | 16 |
| 3 or 4 units | 147 |
| 5 to 9 units | 594 |
| 10 to 19 units | 1,694 |
| 20 or more units | 2,994 |
| Mobile home | 0 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 22,701 |
| Built 2014 or later | 596 |
| Built 2010 to 2013 | 8,982 |
| Built 2000 to 2009 | 9,119 |
| Built 1990 to 1999 | 3,018 |
| Built 1980 to 1989 | 400 |
| Built 1970 to 1979 | 430 |
| Built 1960 to 1969 | 73 |
| Built 1950 to 1959 | 43 |
| Built 1940 to 1949 | 28 |
| Built 1939 or earlier | 12 |
| Total housing units | 22,701 |
| 1 room | 252 |
| 2 rooms | 1,234 |
| 3 rooms | 1,186 |
| 4 rooms | 2,275 |
| 5 rooms | 3,674 |
| 6 rooms | 3,412 |
| 7 rooms | 3,675 |
| 8 rooms | 2,811 |
| 9 rooms or more | 4,182 |
| Median rooms | 6.3 |
| Total housing units | 22,701 |
| No bedroom | 306 |
| 1 bedroom | 2,271 |
| 2 bedrooms | 2,638 |
| 3 bedrooms | 7,888 |
| 4 bedrooms | 8,082 |
| 5 or more bedrooms | 1,516 |
| Occupied housing units | 21,317 |
| Owner-occupied | 14,305 |
| Renter-occupied | 7,012 |
| Average household size of owner-occupied unit | 3.01 |
| Average household size of renter-occupied unit | 2.39 |
| Occupied housing units | 21,317 |
| Moved in 2017 or later | 3,755 |
| Moved in 2015 to 2016 | 8,689 |
| Moved in 2010 to 2014 | 3,737 |
| Moved in 2000 to 2009 | 4,248 |
| Moved in 1990 to 1999 | 683 |
| Moved in 1989 and earlier | 205 |
| Owner-occupied units | 14,305 |
| Less than $50,000 | 121 |
| $50,000 to $99,999 | 28 |
| $100,000 to $149,999 | 408 |
| $150,000 to $199,999 | 481 |
| $200,000 to $299,999 | 4,909 |
| $300,000 to $499,999 | 6,631 |
| $500,000 to $999,999 | 1,701 |
| $1,000,000 or more | 26 |
| Median (dollars) | 324,000 |
| Owner-occupied units | 14,305 |
| Housing units with a mortgage | 11,190 |
| Housing units without a mortgage | 3,115 |
| Occupied units paying rent | 6,972 |
| Less than $500 | 20 |
| $500 to $999 | 88 |
| $1,000 to $1,499 | 3,282 |
| $1,500 to $1,999 | 2,217 |
| $2,000 to $2,499 | 914 |
| $2,500 to $2,999 | 261 |
| $3,000 or more | 190 |
| Median (dollars) | 1,522 |
| No rent paid | 40 |
Data is based on 2021 Census