Frequently Asked Questions About ZIP Code 78664
78664 ZIP Code FAQs and quick facts
Answers to frequently asked questions about the 78664 ZIP Code (Round Rock, TX)
1
What region of the U.S. is ZIP Code 78664 associated with?
The 78664 ZIP Code is primarily associated with Round Rock, TX in the United States.
2
What U.S. county is ZIP Code 78664 located in?
The 78664 ZIP Code is located in Williamson County in the state of Texas.
3
What is the current population estimate for ZIP Code 78664?
The ZIP Code 78664 has a current population estimate of 64,686, according to the U.S. Census Bureau.
4
What is the racial composition of ZIP Code 78664?
The most common race in 78664 (race alone or in combination with one or more other races), is White (77.9%), followed by Black or African American (15.3%) . In this region, 94.3% of residents are one race, while 5.7% are two or more races.
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5
What is the average age of residents in ZIP Code 78664?
Residents of ZIP Code 78664 have a median age of 33.6 years. People aged 35 to 44 years make up approximately 17.2% of the population in 78664, the largest percentage of any age group.
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6
Is the population in ZIP Code 78664 older or younger than average?
Residents of ZIP Code 78664 are younger than average. The median age of 33.6 years in ZIP Code 78664 is approximately 11.81% lower than the overall median age in the U.S. of 38.1 years.
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7
How many residents in ZIP Code 78664 are senior citizens?
An estimated 10.2% of residents in ZIP Code 78664 are of age 62 years and older.
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8
What portion of the population in ZIP Code 78664 is of voting age?
According to U.S. Census Bureau data, approximately 74% of residents in the 78664 ZIP Code are in the voting age population (18 and over).
9
What is the average home price in ZIP Code 78664?
The median home value in ZIP Code 78664 in January 2025 was $352,853. That recent median value is approximately -3% lower than the $363,791 median value in the region 12 months earlier in February 2024.
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10
When were most homes built in ZIP Code 78664?
Approximately 27.9% of homes in ZIP Code 78664 were built between 2000 and 2009. This is, relatively speaking, the largest of percentage of any time range. Additionally, 26.6% of homes in the region were built between 1990 and 1999.
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12
What is the per capita income in ZIP Code 78664?
The per capita income in ZIP Code 78664 of $32,613 is approximately 4.37% less than the per capita income in the U.S. overall of $34,103.
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13
What income range is most common for those living in ZIP Code 78664?
An estimated 19.6% of the residents in 78664 earn $50,000 to $74,999 per year, the highest percentage of any range, while 17.7% earn $100,000 to $149,999 per year.
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14
Are any residents of ZIP Code 78664 living below the poverty line?
An estimated 7.5% of the population is living below the poverty line in this region. This rate is approximately 21.05% lower than the overall poverty rate in the U.S. of 9.5%.
15
How many residents in ZIP Code 78664 are high school graduates?
In ZIP Code 78664, 90.7% of the population graduated high school. In this region, 5.4% achieved an education level less than 9th grade, while 3.9% attended 9th to 12th grade, but did not receive a diploma.
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16
How many residents in ZIP Code 78664 are college graduates?
In ZIP Code 78664, 32.8% of the population has a Bachelor's degree or higher. An estimated 25.8% attended some college, but did not receive a degree.
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17
What is the highest level of education attained for the typical resident in ZIP Code 78664?
An estimated 25.8% of the residents in 78664 reached the level of some college, no degree, the highest percentage of any level. Additionally, 23.0% reached the level of high school graduate (includes equivalency).
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18
What is the most frequent language spoken in home in ZIP Code 78664?
In ZIP Code 78664, approximately 70.5% of the population in 78664 list "English only" as the language spoken in home. This is the most common in-home language spoken in the region.
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19
Other than English, what is the most common language spoken in home in the 78664 ZIP Code?
An estimated 22.5% of residents in ZIP Code 78664 speak Spanish at home. This is the most common language spoken in home, other than English.
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20
How is the air quality in ZIP Code 78664?
The current air quality level in ZIP Code 78664, according to the Common Air Quality Index (CAQI) air quality index, is: Fair.
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21
Which area codes are associated with ZIP Code 78664?
Telephone area codes that are frequently associated with ZIP Code 78664 include: No associated area codes were found for ZIP Code 78664.
22
Are there more females or males in ZIP Code 78664?
There are more males than females in ZIP Code 78664. Females comprise approximately 49.6% of the population, while males make up an estimated 50.4%.
23
How common is broadband Internet service in ZIP Code 78664?
An estimated 93.3% of households in ZIP Code 78664 have broadband Internet service. Approximately 97.8% of households in the region have a computer in home.
24
Does ZIP Code 78664 have good solar power potential?
The 78664 ZIP Code has above average solar power potential when compared to the U.S. as a whole. This region's average solar radiation level of 5.56kWh/m2/day is 12.32% greater than the overall U.S. daily average.
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25
What job industry do residents of ZIP Code 78664 work in most frequently?
An estimated 17.8% of the employed population 16 years and over in ZIP Code 78664 work in educational services, and health care and social assistance. This is the largest percentage of any job industry.
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26
How many people in ZIP Code 78664 do not have health insurance?
Approximately 18.8% of adults aged 18 to 64 in ZIP Code 78664 are uninsured and do not have health insurance.
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