What city is ZIP code 78721?

78721 is a Austin, Texas ZIP code.

What county is 78721 in?

ZIP code 78721 is in Travis County, Texas.

What time zone is ZIP code 78721 in?

78721 is in the Central Time zone (America/Chicago).

What area code is 78721?

Phone numbers in ZIP code 78721 use area codes 512 and 737.

What is the population of ZIP code 78721?

About 10,997 people live in ZIP code 78721, according to the Census Bureau’s American Community Survey (2020–2024).

What is the median income in 78721?

The median household income in 78721 is $84,573 a year, higher than 72% of Texas ZIP codes.

What ZIP codes are near 78721?

The nearest ZIP codes to 78721 are 78702 (Austin, 1.9 miles), 78722 (Austin, 2.1 miles), 78723 (Austin, 2.5 miles) and 78742 (Austin, 3 miles).

ZIP code 78721

Where is ZIP code 78721?

Austin, Texas

Travis County · Standard ZIP code

ZIP code 78721 belongs to Austin, Texas in Travis County. 78721 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Central Time zone and uses area codes 512 and 737. About 10,997 people live in the 78721 area, where the median household income is $84,573. The closest ZIP codes are 78702 (Austin, 1.9 mi west), 78722 (Austin, 2.1 mi northwest) and 78723 (Austin, 2.5 mi north).

ZIP code	78721
Type	Standard ZIP code for street addresses and PO Boxes
Status	Active
City	Austin
State	Texas (TX)
County	Travis County
Time zone	Central Time · now
Area codes	512, 737
Coordinates	30.2721, -97.6868 map
3-digit prefix	787

Population and income in 78721

Population	10,997 · higher than 59% of Texas ZIP codes
People per square mile	3,082 · higher than 84% of Texas ZIP codes
Median age	33.8 years · lower than 76% of Texas ZIP codes
Men / women	46% / 54%
Median household income	$84,573 · higher than 72% of Texas ZIP codes
Income per person	$57,366
Below the poverty line	26%
Bachelor’s degree or higher	52% of adults 25+
Median home value	$523,000 · higher than 94% of Texas ZIP codes
Median rent	$1,482 a month
Housing units	5,341
Households	4,973 (2.17 people on average)
Owners / renters	51% / 49%
Land area	3.57 sq mi

Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 78721. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.

ZIP codes near 78721

ZIP code	City	Distance	Type
78702	Austin, TX	1.9 mi W	Standard
78722	Austin, TX	2.1 mi NW	Standard
78723	Austin, TX	2.5 mi N	Standard
78742	Austin, TX	3 mi S	Standard
78712	Austin, TX	3 mi W	Standard
78724	Austin, TX	3.3 mi NE	Standard
78701	Austin, TX	3.3 mi W	Standard
78705	Austin, TX	3.4 mi W	Standard
78713	Austin, TX	3.4 mi W	PO Box only
78714	Austin, TX	3.4 mi W	PO Box only
78715	Austin, TX	3.4 mi W	PO Box only
78766	Austin, TX	3.4 mi W	PO Box only

Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 78721 or measure the distance to another ZIP code.

How to address mail to 78721

JANE SMITH
123 MAIN ST
AUSTIN TX 78721

Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (78721-XXXX) helps mail sort faster but isn’t required.

Other ZIP codes in Austin, TX

All Austin ZIP codes with population and income →

Questions

What city is ZIP code 78721?: 78721 is a Austin, Texas ZIP code.
What county is 78721 in?: ZIP code 78721 is in Travis County, Texas.
What time zone is ZIP code 78721 in?: 78721 is in the Central Time zone (America/Chicago).
What area code is 78721?: Phone numbers in ZIP code 78721 use area codes 512 and 737.
What is the population of ZIP code 78721?: About 10,997 people live in ZIP code 78721, according to the Census Bureau’s American Community Survey (2020–2024).
What is the median income in 78721?: The median household income in 78721 is $84,573 a year, higher than 72% of Texas ZIP codes.
What ZIP codes are near 78721?: The nearest ZIP codes to 78721 are 78702 (Austin, 1.9 miles), 78722 (Austin, 2.1 miles), 78723 (Austin, 2.5 miles) and 78742 (Austin, 3 miles).