Zip code 78681: Round Rock, Texas

Q: What city is zip code 78681?

78681 is assigned to Round Rock, Texas. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 78681 in?

78681 is in Williamson County, Texas.

Q: What is the population of 78681?

About 56,691 people live in 78681, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 78681?

The median household income in 78681 is $137,819.

Q: What zip codes are near 78681?

The closest zip codes to 78681 are 78717, 78664, 78665, 78728, 78729.

Residential delivery areaWilliamson CountyCentral Time

Population

56,691

Median household income

$138K

U.S. $81K

Median home value

$497K

U.S. $333K

Median rent

$1,963/mo

U.S. $1,413

Median age

39.3

U.S. 38.9

Land area

23 sq mi

2,445 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 78681

78681 is a suburban zip code in Round Rock, Texas (Williamson County), covering 23 sq mi of land. About 56,691 people live here, or 2,445 per square mile. The median resident is 39.3 years old, compared with 38.9 nationally.

The median household earns $137,819 a year, 71% above the national median of $80,734. 5.5% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $497,300, or 3.6 years of median household income (U.S.: 4.1 years), which makes homes about as affordable as the national average for local earners. 74% of occupied homes are lived in by their owners, and renters pay a median of $1,963 a month.

58% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 23.6 minutes each way, and 30% of workers work from home. The most common jobs among working residents are in management; computer and math (tech); and sales. 32% of households speak a language other than English at home, most often Spanish.

How 78681 compares

Sorted from highest to lowest national percentile

Tech workers13.4%
99th
U.S. 3.8% · TX 3.8%18th of 1,810 in TX
Work from home30.1%
94th
U.S. 15.1% · TX 14.4%71st of 1,810 in TX
Median household income$137,819
92nd
StrengthU.S. $80,734 · TX $78,47668th of 1,712 in TX
Population56,691
87th
U.S. 334,922,499 · TX 30,188,42495th of 1,818 in TX
Bachelor's degree or higher58%
87th
StrengthU.S. 35.7% · TX 33.8%132nd of 1,811 in TX
Median earnings per worker$69,220
86th
StrengthU.S. $49,666 · TX $47,575146th of 1,794 in TX
Residents under 1826.7%
85th
U.S. 22% · TX 25%578th of 1,818 in TX
Per capita income$59,301
84th
StrengthU.S. $44,673 · TX $40,752143rd of 1,813 in TX
Broadband access95.9%
84th
StrengthU.S. 91% · TX 91.4%281st of 1,792 in TX
Median gross rent$1,963
82nd
U.S. $1,413 · TX $1,40386th of 1,511 in TX
Diversity index63.1
79th
U.S. 61.4 · TX 67.1313th of 1,818 in TX
Median home value$497,300
75th
U.S. $332,700 · TX $283,800115th of 1,679 in TX
Self-employed workers11.3%
72nd
U.S. 10% · TX 10.5%822nd of 1,810 in TX
Foreign-born residents16.9%
68th
U.S. 14.1% · TX 17.6%451st of 1,818 in TX
Homeownership rate73.9%
64th
U.S. 65.2% · TX 62.6%933rd of 1,792 in TX
Population density2,445/sq mi
62nd
U.S. 95/sq mi · TX 116/sq mi391st of 1,818 in TX
Veterans6.5%
59th
U.S. 6.2% · TX 6.2%878th of 1,818 in TX
Uninsured rate7.5%
55th
U.S. 8.4% · TX 17.1%1,565th of 1,808 in TX
Government workers14.1%
53rd
U.S. 14.5% · TX 14.1%1,014th of 1,810 in TX
Median age39.3
52nd
U.S. 38.9 · TX 35.6799th of 1,817 in TX
Average commute23.6 min
34th
U.S. 26.4 min · TX 26.7 min1,175th of 1,738 in TX
Rent-burdened renters45.2%
30th
U.S. 51.1% · TX 51.7%971st of 1,692 in TX
Income inequality (Gini)0.409
28th
U.S. 0.483 · TX 0.4781,161st of 1,785 in TX
Unemployment rate3%
16th
StrengthU.S. 5.2% · TX 5.3%1,266th of 1,810 in TX
Poverty rate5.5%
15th
StrengthU.S. 12.5% · TX 13.8%1,526th of 1,794 in TX
Residents 65 and older11.3%
14th
U.S. 17.2% · TX 13.4%1,430th of 1,818 in TX
Housing vacancy3.1%
12th
U.S. 10.1% · TX 9.4%1,705th of 1,794 in TX
Healthcare workers6.6%
12th
U.S. 9.7% · TX 8.6%1,177th of 1,810 in TX

Measure	78681	Williamson	TX	U.S.	National percentile	Rank in TX
Tech workers	13.4%	9.6%	3.8%	3.8%	99th	18th of 1,810
Work from home	30.1%	25.4%	14.4%	15.1%	94th	71st of 1,810
Median household incomeStrength	$137,819	$111,340	$78,476	$80,734	92nd	68th of 1,712
Population	56,691	672,688	30,188,424	334,922,499	87th	95th of 1,818
Bachelor's degree or higherStrength	58%	48.4%	33.8%	35.7%	87th	132nd of 1,811
Median earnings per workerStrength	$69,220	$61,236	$47,575	$49,666	86th	146th of 1,794
Residents under 18	26.7%	24.1%	25%	22%	85th	578th of 1,818
Per capita incomeStrength	$59,301	$53,505	$40,752	$44,673	84th	143rd of 1,813
Broadband accessStrength	95.9%	95.8%	91.4%	91%	84th	281st of 1,792
Median gross rent	$1,963	$1,796	$1,403	$1,413	82nd	86th of 1,511
Diversity index	63.1	63.8	67.1	61.4	79th	313th of 1,818
Median home value	$497,300	$447,000	$283,800	$332,700	75th	115th of 1,679
Self-employed workers	11.3%	9.5%	10.5%	10%	72nd	822nd of 1,810
Foreign-born residents	16.9%	16.2%	17.6%	14.1%	68th	451st of 1,818
Homeownership rate	73.9%	66.4%	62.6%	65.2%	64th	933rd of 1,792
Population density	2,445/sq mi	603/sq mi	116/sq mi	95/sq mi	62nd	391st of 1,818
Veterans	6.5%	7.6%	6.2%	6.2%	59th	878th of 1,818
Uninsured rate	7.5%	9.8%	17.1%	8.4%	55th	1,565th of 1,808
Government workers	14.1%	13.9%	14.1%	14.5%	53rd	1,014th of 1,810
Median age	39.3	37.3	35.6	38.9	52nd	799th of 1,817
Average commute	23.6 min	27.9 min	26.7 min	26.4 min	34th	1,175th of 1,738
Rent-burdened renters	45.2%	48%	51.7%	51.1%	30th	971st of 1,692
Income inequality (Gini)	0.409	0.415	0.478	0.483	28th	1,161st of 1,785
Unemployment rateStrength	3%	3.9%	5.3%	5.2%	16th	1,266th of 1,810
Poverty rateStrength	5.5%	6.4%	13.8%	12.5%	15th	1,526th of 1,794
Residents 65 and older	11.3%	12.9%	13.4%	17.2%	14th	1,430th of 1,818
Housing vacancy	3.1%	3.9%	9.4%	10.1%	12th	1,705th of 1,794
Healthcare workers	6.6%	7.6%	8.6%	9.7%	12th	1,177th of 1,810

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Under 5

22%

5–17

18–24

10%

25–34

17%

35–44

17%

45–54

11%

55–64

65–74

75+

Median age

39.3

Under 18

26.7%

65 and over

11.3%

Race and ethnicity

White55%
Black4%
Hispanic22%
Asian13%
Native American0.0%
Pacific Islander0.1%
Other0.7%
Multiracial5%

Diversity index

63.1

U.S. 61.4

Foreign-born

16.9%

U.S. 14.1%

Born in state

49.2%

Language spoken at home (households)

English only

68%

Spanish

17%

Other Indo-European

Asian / Pacific

Other

0.6%

Households

Households: 20,135
Average household size: 2.8
Family households: 76.1%
Married couples: 61.7%
Living alone: 19.9%
Veterans (of adults): 6.5%
Male / female: 51% / 49%

Income and poverty

Household income distribution

<$25k

$25–50k

$50–75k

11%

$75–100k

$100–150k

20%

$150–200k

18%

$200k+

27%

Median household income

78681

$137,819

Williamson Co.

$111,340

Texas

$78,476

United States

$80,734

Per capita income

$59,301

U.S. $44,673

Poverty rate

5.5%

U.S. 12.5%

Households earning $150K+

45.2%

U.S. 23%

Income inequality (Gini)

0.409

U.S. 0.483

Housing

Median home value

78681

$497,300

Williamson Co.

$447,000

Texas

$283,800

United States

$332,700

Median gross rent

78681

$1,963

Williamson Co.

$1,796

Texas

$1,403

United States

$1,413

Types of housing

Single-family

83%

2–4 units

5–19 units

20+ units

Mobile home

0.6%

Boat, RV, van

Housing units: 20,781
Owner-occupied: 73.9%
Vacant: 3.1%
Median year built: 1999
Median rooms: 6.6
Renters paying 30%+ of income: 45.2%
Renters paying 50%+ of income: 19.5%
Home value to income: 3.6× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

60%

Carpooled

Transit

0.1%

Walked

0.7%

Bicycle

0.0%

Worked from home

30%

Other

0.7%

Commute time (one way)

<10 min

11%

10–19

30%

20–29

26%

30–44

22%

45–59

60+

Average commute

23.6 min

U.S. 26.4 min

Unemployment

U.S. 5.2%

In labor force

71.1%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Management

16%

Computer and math

13%

Sales

11%

Office and admin

Business and finance

Education

Healthcare

Construction and repair

Transportation and moving

Engineering and science

Food service

Cleaning and personal care

Legal and social services

Production

Arts, media and sports

Police and fire

Farming, fishing and forestry

Industries

Professional and technical services

17%

Retail

11%

Health care and social assistance

10%

Education

Manufacturing

Finance, insurance and real estate

Restaurants and hotels

Transportation, warehousing and utilities

Construction

Public administration

Information

Other services

Admin, support and management

Wholesale

Arts and recreation

Agriculture and mining

0.2%

Median earnings per worker

$69,220

U.S. $49,666

Self-employed

11.3%

U.S. 10%

Government workers

14.1%

U.S. 14.5%

Nonprofit workers

5.7%

U.S. 8.8%

Median earnings by type of work

Type of work	78681	U.S.
Management, business, science and arts	$97,070	$74,888
Service	$22,776	$26,804
Sales and office	$50,739	$40,476
Construction and maintenance	$45,407	$49,199
Production and transportation	$37,087	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

12%

Some college

19%

Associate's

Bachelor's

36%

Graduate

22%

High school graduate or higher: 95.9%
Bachelor's degree or higher: 58%
Graduate or professional degree: 21.6%
Households with broadband: 95.9%
Cable, fiber or DSL: 87.5%
No internet access: 3%
Without health insurance: 7.5%
Limited-English households: 4%

Geography

City (USPS): Round Rock
State: Texas
County: Williamson County
Center point: 30.5418° N, 97.7166° W
Land area: 23 sq mi
Water area: 0.1 sq mi
Time zone: Central Time (UTC-6, UTC-5 in summer)
Zip type: Residential delivery area

Cities and towns within this zip

Round Rock45% of zip
Brushy Creek (unincorporated)18% of zip
Austin1% of zip

Census places overlapping the zip's area. Mail may use a different city name than the municipality.

Zip codes near 78681

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
78717	Austin, TX	4.2 mi	37,262	$145,325	$652,200
78664	Round Rock, TX	4.8 mi	62,060	$87,417	$358,200
78665	Round Rock, TX	4.8 mi	66,171	$122,680	$474,100
78728	Austin, TX	6.3 mi	26,777	$75,243	$437,000
78729	Austin, TX	6.3 mi	30,460	$86,438	$476,200
78613	Cedar Park, TX	6.6 mi	89,956	$125,487	$496,200
78627	Georgetown, TX · PO box	6.7 mi	—	—	—
78630	Cedar Park, TX · PO box	6.7 mi	—	—	—
78764	Austin, TX · PO box	7.5 mi	—	—	—
78727	Austin, TX	7.8 mi	29,958	$110,379	$540,400
78750	Austin, TX	8.1 mi	29,277	$121,563	$601,800
78646	Leander, TX · PO box	8.5 mi	—	—	—

Zip codes like 78681 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 78681

What city is zip code 78681?

78681 is assigned to Round Rock, Texas. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 78681 in?

78681 is in Williamson County, Texas.

What is the population of 78681?

About 56,691 people live in 78681, according to the Census Bureau's American Community Survey.

What time zone is 78681 in?

78681 is in Central Time.

What is the median household income in 78681?

The median household income in 78681 is $137,819.

What zip codes are near 78681?

The closest zip codes to 78681 are 78717, 78664, 78665, 78728, 78729.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 78681, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.