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78665 ZIP Code

Round Rock, Texas

December 30, 2025
ZIP Code:78665
City/Town:Round Rock
County:Williamson
State:Texas
ZIP Type:Standard
Population:61,640
Median Household Income:$113,365
Per Capita Income:$56,369
Total Housing Units:23,509
Median Home Value:$381,300
Land Area: sq miles
0.0 sq km
Water Area: sq miles
0.0 sq km
Coordinates:30.2198, -98.3586

Population Information (78665 zip code)

#%US
Total Population:61,640----
Male:30,62649.7%49.6%
Female:31,01450.3%50.4%
Median Age:35.4 yrs--38.5 yrs
Under 5 years:4,7707.7%5.7%
5 to 9 years:5,1968.4%6.0%
10 to 14 years:4,6637.6%6.5%
15 to 19 years:4,0336.5%6.6%
20 to 24 years:3,4415.6%6.7%
25 to 34 years:8,27413.4%13.7%
35 to 44 years:11,71719.0%12.9%
45 to 54 years:7,61512.4%12.4%
55 to 59 years:3,4185.5%6.5%
60 to 64 years:2,4844.0%6.4%
65 to 74 years:4,1126.7%9.7%
75 to 84 years:1,3882.3%4.8%
85 years and over:5290.9%2.0%

Housing Information (78665 zip code)

#%US
Median home value:$381,300--$281,900
Median rooms:6.2--5.5
Median rent:$1,812 / mo.--$1,268 / mo.
Total housing units:23,509----
Occupied housing units:22,10594.0%38.0%
Vacant housing units:1,4046.0%4.6%
Housing tenure:------
Owner-occupied:14,52365.7%64.8%
Renter-occupied:7,58234.3%35.2%

Educational Attainment (78665 zip code)

#%US
Population 25 years and over:39,537----
Less than 9th grade:6401.6%4.7%
9th to 12th grade, no diploma:6851.7%6.1%
High school graduate:6,19115.7%26.4%
Some college, no degree:7,81819.8%19.7%
Associate degree:4,08010.3%8.7%
Bachelor's degree:12,56631.8%20.9%
Graduate or professional degree:7,55719.1%13.7%
Percent high school graduate or higher:--96.6%89.1%
Percent bachelor's degree or higher:--50.9%34.3%

Income Information (78665 zip code)

ValueUS
Median household income:$113,365 / yr.$75,149 / yr.
Mean household income:$137,863 / yr.$105,833 / yr.
Median family income:$129,394 / yr.$92,646 / yr.
Per capita income:$56,369 / yr.$41,261 / yr.

Employment (78665 zip code)

#%US
In labor force:34,155--63.5%
Employed:32,79996.2%96.4%
Unemployed:1,2923.8%5.3%
Not in labor force:12,129----
Class of Worker:------
Private wage and salary:26,65881.3%79.7%
Government workers:4,75914.5%14.2%
Self-employed:1,3824.2%5.9%
Unpaid family workers:00.0%0.1%

Race & Ethnicity (78665 zip code)

#%US
Race (one race):------
White:36,35259.0%61.6%
Black or African American:7,13711.6%12.4%
American Indian/Alaska Native:2310.4%1.1%
Asian:5,4158.8%6.0%
Native Hawaiian/Pacific Islander:2300.4%0.2%
Some other race:2,3823.9%8.4%
Two or more races:9,89316.0%10.2%
Hispanic or Latino (any race):9,43115.3%18.7%
Mexican:15,12024.5%11.2%
Puerto Rican:10,56917.1%1.8%
Cuban:9521.5%0.7%
Other Hispanic or Latino:2840.5%5.0%
Not Hispanic or Latino:3,3155.4%81.1%

Income Distribution (78665 zip code)

Household IncomeHouseholds%US
Less than $10,000:7003.2%4.9%
$10,000 to $14,999:1960.9%3.8%
$15,000 to $24,999:3341.5%7.0%
$25,000 to $34,999:9194.2%7.4%
$35,000 to $49,999:1,4826.7%10.7%
$50,000 to $74,999:3,12814.2%16.1%
$75,000 to $99,999:2,57311.6%12.8%
$100,000 to $149,999:5,63125.5%17.1%
$150,000 to $199,999:3,38515.3%8.8%
$200,000 or more:3,75717.0%11.4%

Commute to Work (78665 zip code)

Commute MethodWorkers%US
Drove alone:21,25264.8%67.8%
Carpooled:3,0909.4%8.7%
Public transportation:520.2%4.2%
Walked:1010.3%2.5%
Other means:4411.3%0.9%
Worked from home:7,29522.2%13.8%
Mean travel time to work:29.0 min--26.7 min

Industry (78665 zip code)

Industry SectorWorkers%US
Agriculture, forestry, fishing, mining:760.2%1.6%
Construction:1,2643.9%6.9%
Manufacturing:3,56910.9%10.0%
Wholesale trade:9012.7%2.4%
Retail trade:3,59911.0%11.0%
Transportation, warehousing, utilities:1,4254.3%5.8%
Information:5801.8%1.9%
Finance, insurance, real estate:2,4067.3%6.7%
Professional, scientific, management:6,08118.5%12.1%
Education, health care, social services:7,23622.1%23.3%
Arts, entertainment, food services:2,2006.7%9.0%
Other services:1,2283.7%4.7%
Public administration:2,2346.8%4.7%

Poverty Status (78665 zip code)

#%US
Poverty Rate:--4.8%8.8%
All people below poverty level:------
Under 18 years:----16.3%
18 to 64 years:----11.0%
65 years and over:----10.3%

Health Insurance (78665 zip code)

#%US
With health insurance:56,73192.0%91.3%
Private health insurance:51,82184.1%67.6%
Public health coverage:10,39716.9%35.9%
Without health insurance:4,6957.6%8.7%

Benefits & Assistance (78665 zip code)

Households with:#%US
Earnings:19,39687.7%77.4%
Social Security income:4,36519.7%31.0%
Retirement income:3,94717.9%21.8%
Supplemental Security Income (SSI):6693.0%4.5%
Cash public assistance income:660.3%1.8%
SNAP (food stamps) benefits:6743.0%11.4%

Housing Types (78665 zip code)

Structure TypeUnits%US
1-unit, detached:17,94276.3%61.4%
1-unit, attached:1290.5%6.1%
2 units:330.1%3.4%
3 or 4 units:1540.7%4.3%
5 to 9 units:5252.2%4.6%
10 to 19 units:1,5886.8%4.3%
20 or more units:3,12713.3%9.9%
Mobile home:110.0%5.8%
Boat, RV, van, etc.:00.0%0.1%

Year Structure Built (78665 zip code)

Year BuiltUnits%US
Built 2020 or later:1,0754.6%0.6%
Built 2010 to 2019:9,63241.0%8.2%
Built 2000 to 2009:8,85037.6%13.5%
Built 1990 to 1999:2,96512.6%13.2%
Built 1980 to 1989:3851.6%13.2%
Built 1970 to 1979:4071.7%14.6%
Built 1960 to 1969:730.3%10.2%
Built 1950 to 1959:630.3%9.9%
Built 1940 to 1949:460.2%4.6%
Built 1939 or earlier:130.1%12.0%

Bedrooms (78665 zip code)

Number of BedroomsUnits%US
No bedroom (studio):3081.3%2.4%
1 bedroom:2,2449.5%3.0%
2 bedrooms:2,84412.1%9.1%
3 bedrooms:8,39235.7%15.9%
4 bedrooms:7,99634.0%18.8%
5 or more bedrooms:1,7257.3%17.6%

Heating Fuel (78665 zip code)

Fuel TypeUnits%US
Utility gas:12,62857.1%47.1%
Bottled, tank, or LP gas:880.4%4.9%
Electricity:9,27942.0%40.2%
Fuel oil, kerosene, etc.:730.3%4.2%
Coal or coke:00.0%0.1%
Wood:00.0%1.5%
Solar energy:00.0%0.1%
Other fuel:00.0%0.5%
No fuel used:370.2%0.2%

Vehicles Available (78665 zip code)

VehiclesHouseholds%US
No vehicle available:3781.7%8.3%
1 vehicle available:6,14327.8%32.6%
2 vehicles available:11,12150.3%37.0%
3 or more vehicles available:4,46320.2%22.1%

Home Value Distribution (78665 zip code)

Value RangeOwner Units%US
Less than $50,000:1631.1%5.7%
$50,000 to $99,999:350.2%7.8%
$100,000 to $149,999:1260.9%9.2%
$150,000 to $199,999:3842.6%10.8%
$200,000 to $299,999:2,89319.9%19.9%
$300,000 to $499,999:7,25950.0%24.1%
$500,000 to $999,999:3,55124.5%17.0%
$1,000,000 or more:1120.8%5.6%

Housing Costs (78665 zip code)

ValueUS
Median owner costs (with mortgage):$2,434 / mo.$1,828 / mo.
Median owner costs (no mortgage):$889 / mo.$584 / mo.
Median gross rent:$1,812 / mo.$1,268 / mo.
Average household size (owner-occupied):2.932.53
Average household size (renter-occupied):2.482.38

Households (78665 zip code)

#%US
Total households:22,105----
Married-couple households:13,70962.0%47.5%
Cohabiting couple households:7,26332.9%7.0%
Male householder, no spouse:2,50411.3%5.4%
Female householder, no spouse:4,62820.9%12.7%
Householder living alone:9,94545.0%28.6%
65 years and over living alone:4,13918.7%11.8%
Average household size:2.78--2.53
Average family size:3.17----

Marital Status (78665 zip code)

Population 15 years and over#%US
Total:23,308----
Never married:6,76029.0%37.0%
Now married:14,34361.5%49.5%
Separated:4812.1%1.5%
Widowed:1,5726.7%2.6%
Divorced:5,35023.0%9.3%

School Enrollment (78665 zip code)

Population 3 years and over#%US
Enrolled in school:16,513----
Nursery school, preschool:1,1066.7%5.8%
Kindergarten:8565.2%5.0%
Elementary school (grades 1-8):7,59246.0%40.5%
High school (grades 9-12):3,25319.7%21.4%
College or graduate school:3,70622.4%27.3%

Veterans & Disability (78665 zip code)

#%US
Civilian population 18 years and over:44,629----
Veterans:3,8838.7%6.3%
Civilian noninstitutionalized population:61,426----
With a disability:6,13110.0%13.4%
Under 18 with disability:1,22319.9%5.8%
18 to 64 with disability:3,60558.8%10.4%
65 and over with disability:1,30321.3%33.4%

Mobility (Residence 1 Year Ago) (78665 zip code)

Population 1 year and over#%US
Same house:46,42575.3%86.9%
Different house:14,45623.5%13.1%
Same county:4,64532.1%7.0%
Different county:9,03662.5%3.2%
Different state:4,86733.7%2.5%
Abroad:7755.4%0.4%

Place of Birth (78665 zip code)

#%US
Native born:52,31784.9%86.2%
Foreign born:1,2952.1%13.9%
Naturalized citizen:9,323719.9%52.7%
Not a citizen:9,323719.9%47.3%
Foreign-born by region:------
Europe:9,323719.9%10.5%
Asia:89669.2%31.3%
Africa:89469.0%5.5%
Oceania:282.2%0.5%
Latin America:3,364259.8%50.0%
Northern America:21616.7%2.2%

Language Spoken at Home (78665 zip code)

Population 5 years and over#%US
Total:56,870----
English only:42,69375.1%78.3%
Language other than English:14,17724.9%21.5%
By language:------
Spanish:8,54415.0%13.3%
Other Indo-European languages:2,1013.7%3.5%
Asian/Pacific Island languages:2,9055.1%3.5%
Other languages:6271.1%1.0%

Computers & Internet (78665 zip code)

Households%US
Households with a computer:22,105100.0%93.1%
Households with broadband internet:21,97599.4%89.4%