ZIP Code 78664: Population, Income, Housing

State: TX

Total population: 62,060 Household income: $87,417 Rent: $1,692

Overview

Total population

62,060

Rent

$1,692

Year built

1997

Household income

$87,417

Per capita income

$43,876

Poverty rate

10.2%

Unemployment rate

N/A

Household size

2.6 persons

Rent over 30% of income

48.6%

Note: Rent, income, and year built are shown as median values, while household size is shown as an average (see explanations below).

ZIP data use Census ZCTAs, which closely match USPS ZIP Codes in most cases (see FAQ for details).

Data are sourced from the American Community Survey (ACS) 5-Year Estimates, 2024 release — the latest dataset currently available. New 5-year estimates are published annually, about 6–12 months after the end of each reference year.

Demographics

State

Texas

County

Williamson County

City

Round Rock

Total population

62,060

Adults over 25

41,416

Total households

23,484

Household size

2.6 persons

Note: Rent, income, and year built are shown as median values, while household size is shown as an average (see explanations below).

ZIP data use Census ZCTAs, which closely match USPS ZIP Codes in most cases (see FAQ for details).

Income & Poverty

Household income

$87,417

Per capita income

$43,876

Poverty rate

10.2%

Unemployment rate

N/A

Rent over 30% of income

48.6%

Note: Rent, income, and year built are shown as median values, while household size is shown as an average (see explanations below).

ZIP data use Census ZCTAs, which closely match USPS ZIP Codes in most cases (see FAQ for details).

Housing

Rent

$1,692

Year built

1997

Households that rent

46.3%

Households that own

53.7%

Rooms per home (all homes)

5.2

Note: Rent, income, and year built are shown as median values, while household size is shown as an average (see explanations below).

ZIP data use Census ZCTAs, which closely match USPS ZIP Codes in most cases (see FAQ for details).

Race

White

47.6%

Black

14.1%

Asian

Two or more races

25%

Note: Rent, income, and year built are shown as median values, while household size is shown as an average (see explanations below).

ZIP data use Census ZCTAs, which closely match USPS ZIP Codes in most cases (see FAQ for details).

Ethnicity

Hispanic or Latino

35.8%

Not Hispanic or Latino

64.2%

Note: Rent, income, and year built are shown as median values, while household size is shown as an average (see explanations below).

ZIP data use Census ZCTAs, which closely match USPS ZIP Codes in most cases (see FAQ for details).

Commute

Commute rate

27,475 (77.5%)

Commute time to work

26 mins

Work from home

7,992 (22.5%)

Note: Rent, income, and year built are shown as median values, while household size is shown as an average (see explanations below).

ZIP data use Census ZCTAs, which closely match USPS ZIP Codes in most cases (see FAQ for details).

Education

Less than high school

29.6%

High school graduate or GED

22.2%

Some college or associate degree

11.8%

Bachelor’s degree or higher

36.4%

Note: Rent, income, and year built are shown as median values, while household size is shown as an average (see explanations below).

ZIP data use Census ZCTAs, which closely match USPS ZIP Codes in most cases (see FAQ for details).

Comparison of ZIP Code 78664 with: Williamson County, TX Round Rock, TX Austin metro area, TX Texas United States

ZIP 78664

Total population62,060

Rent$1,692

Year built1997

Household income$87,417

Per capita income$43,876

Poverty rate10.2%

Unemployment rateN/A

Williamson County, TX

Total population672,688

Rent$1,796

Year built2006

Household income$111,340

Per capita income$53,505

Poverty rate6.4%

Unemployment rate3.2%

Round Rock, TX

Total population127,786

Rent$1,763

Year built2002

Household income$99,287

Per capita income$50,365

Poverty rate7.8%

Unemployment rate3.1%

Austin Metro Area, TX

Total population2,426,592

Rent$1,726

Year built2002

Household income$100,431

Per capita income$56,313

Poverty rate9.8%

Unemployment rate3.5%

Texas State

Total population30,188,424

Rent$1,403

Year built1992

Household income$78,476

Per capita income$40,752

Poverty rate13.8%

Unemployment rate4.1%

United States

Total population334,922,499

Rent$1,413

Year built1980

Household income$80,734

Per capita income$44,673

Poverty rate12.5%

Unemployment rate4%

Metric	ZIP78664	CountyWilliamson, TX	CityRound Rock, TX	Metro AreaAustin metro area, TX	StateTexas	CountryUnited States
Total population	62,060	672,688	127,786	2,426,592	30,188,424	334,922,499
Rent	$1,692	$1,796	$1,763	$1,726	$1,403	$1,413
Year built	1997	2006	2002	2002	1992	1980
Household income	$87,417	$111,340	$99,287	$100,431	$78,476	$80,734
Per capita income	$43,876	$53,505	$50,365	$56,313	$40,752	$44,673
Poverty rate	10.2%	6.4%	7.8%	9.8%	13.8%	12.5%
Unemployment rate	N/A	3.2%	3.1%	3.5%	4.1%	4%

View the full multi-level comparison →

Summary for 78664

Rent & Income

In 78664, the typical monthly rent is $1,692 and the typical household income is $87,417. Rent here is similar to Round Rock and higher than Texas, and household income is lower than Round Rock and higher than Texas. The estimated poverty rate is 10.2%, which is higher than the Round Rock rate but lower than the Texas rate.

Housing & Affordability

Renters make up about 46.3% of households, indicating a relatively balanced mix of renters and owners. About 48.6% of renters spend more than 30% of their income on housing, indicating high cost burden.

Education & Employment

Educational attainment is high, with about 36.4% of adults holding a bachelor’s degree or higher.

ZIP 78664 — Rent vs Household Income

ZIP 78664 — Poverty

How ZIP 78664 compares in Texas (388 ZIP Codes)

Metric	This ZIP	Rank	Starts from	State range
Rent	$1,692	270 / 388	from lower rent	$747 – $3,501
Household income	$87,417	159 / 388	from higher income	$30,377 – $250,001
Poverty rate	10.2%	165 / 388	from lower poverty	1.5% – 47.7%

Rankings are calculated among ZIP Codes in Texas with total population > 30,000 (year 2024).

Detailed Ranking Explanation for ZIP Code 78664

Rent

For rent, this ZIP is positioned 270th out of 388 ZIP Codes in Texas. In Texas as a whole, the range goes from $747 in ZIP 78582 up to $3,501 in ZIP 76092.

Household income

For household income, ZIP Code 78664 ranks 159th out of 388 ZIP Codes. Statewide, values range from $30,377 in ZIP 77840 up to $250,001 in ZIP 76092.

Poverty rate

For poverty levels, this ZIP is positioned 165th out of 388 ZIP Codes. Across Texas, figures vary from 1.5% in ZIP 76092 up to 47.7% in ZIP 77840.

💰 Rent in ZIP Code 78664 (with Utilities)

Estimated Monthly Rent: $1,692 ℹ️ What’s Included:
✅ Base rent, electricity, gas, water/sewer, and heating fuels
❌ Not included: internet, cable TV, renter's insurance, parking

💡 What does this rent estimate mean?

Explanation: This estimate shows what renters typically pay each month for housing — including the apartment or home and essential utilities like heat, water, and electricity.

Included in this number: Rent plus electricity, gas, water/sewer, and heating fuel.

Not included: Internet, cable, parking, renter’s insurance, or furniture rental.

Note: This cost does not depend on the number of people living in the home.

👨‍👧‍👦 Household Income in ZIP Code 78664

Annual Household Income: $87,417

💡 What does Household Income mean?

Definition: This represents the middle value of all household incomes in the ZIP code — half of households earn less, and half earn more.

Includes: wages, salaries, self-employment income, Social Security, pensions, investments, unemployment, public assistance, and rental income.

Does NOT include: capital gains, non-cash benefits (like food stamps), or tax refunds.

Household = any group of people (or a single person) living in the same housing unit.

Example: A couple earning $40,000 and $30,000 together have a household income of $70,000. If that's in the middle of all local incomes, it's the value shown here.

📉 Poverty Rate in ZIP Code 78664

Estimated Rate: 10.2%

💡 What does the Poverty Rate represent?

Definition: The percentage of people in this area living below the federal poverty threshold.

How it works: The threshold is a dollar amount set by the U.S. Census Bureau that varies by family size and age. If a household's income is below that level, everyone in it is included in this rate.

Example: In a town of 10,000 people, if 1,500 have incomes below the poverty line, the poverty rate is 15%.

Note: This statistic only includes people living in households; it does not count those in student housing, military barracks, or nursing homes.

🏘️ Renter vs. Owner Households in ZIP Code 78664

In ZIP Code 78664, households that rent: 10,881 (46.3%)

📊 What does the renter household percentage reveal about this ZIP Code?

Household Type	Count	Share
Renter-Occupied	10,881	46.3%
Owner-Occupied	12,603	53.7%

Definition: This is the percentage of households that rent their home rather than own it. It includes only occupied housing units.

Why it matters: Areas with a high share of renter households often have younger populations, higher mobility, and different housing needs compared to mostly owner-occupied areas.

Example: If 65% of homes in an area are renter-occupied, it means 65 out of every 100 households rent their home.

📉 Renters Spending Over 30% of Income on Rent in ZIP Code 78664

In ZIP Code 78664, cost-burdened renters (households spending over 30% of income on housing): 5,292 (48.6%)

🏚️ What Does It Mean When Renters Spend Over 30% of Their Income on Housing?

Household Group	Households	Share
Cost-burdened renters (over 30%)	5,292	48.6%
Other renter households	5,589	51.4%
Total renter households	10,881	100%

Shares are calculated as a percentage of renter households.

This shows how many renters in the ZIP code are considered cost-burdened — meaning they spend more than 30% of their income on housing (rent and basic utilities).

It’s a sign that housing might be unaffordable in the area or that lower-income residents may be struggling with rent.

Data comes from the U.S. Census Bureau’s American Community Survey.

📊 Education Levels in ZIP Code 78664

Less than High School: 12,243 people (29.6%)

Includes adults who did not complete high school.

High School Graduate or GED: 9,197 people (22.2%)

Includes adults whose highest education is a high school diploma or GED.

Some College or Associate Degree: 4,902 people (11.8%)

Includes adults who attended college without completing a bachelor’s degree (some college or associate degree).

Bachelor’s Degree or Higher: 15,074 people (36.4%)

Includes adults with a bachelor’s degree or higher (bachelor’s, master’s, professional, or doctoral degree).

👥 Total Adults (25+): 41,416

ℹ️ Have questions about how these statistics are calculated? See our data methodology & FAQs

Source: ACS 5-Year Estimates (U.S. Census Bureau) — unemployment rate from BLS. Some values are derived metrics.