ZIP code 78634
Where is ZIP code 78634?
Hutto, Texas
Williamson County · Standard ZIP code
ZIP code 78634 belongs to Hutto, Texas in Williamson County. 78634 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 46,413 people live in the 78634 area, where the median household income is $114,426. The closest ZIP codes are 78664 (Round Rock, 6 mi west), 78665 (Round Rock, 6 mi west) and 78691 (Pflugerville, 6.7 mi southwest).
| ZIP code | 78634 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Hutto |
| State | Texas (TX) |
| County | Williamson County |
| Time zone | Central Time · now |
| Area codes | 512, 737 |
| Coordinates | 30.5257, -97.5672 map |
| 3-digit prefix | 786 |
Population and income in 78634
| Population | 46,413 · higher than 91% of Texas ZIP codes |
|---|---|
| People per square mile | 823 · higher than 69% of Texas ZIP codes |
| Median age | 34.9 years · lower than 71% of Texas ZIP codes |
| Men / women | 50% / 50% |
| Median household income | $114,426 · higher than 91% of Texas ZIP codes |
| Income per person | $44,705 |
| Below the poverty line | 5.7% |
| Bachelor’s degree or higher | 37% of adults 25+ |
| Median home value | $375,200 · higher than 85% of Texas ZIP codes |
| Median rent | $2,020 a month |
| Housing units | 16,333 |
| Households | 15,808 (2.93 people on average) |
| Owners / renters | 79% / 21% |
| Land area | 56.39 sq mi (plus 0.36 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 78634. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 78634
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 78664 | Round Rock, TX | 6 mi W | Standard |
| 78665 | Round Rock, TX | 6 mi W | Standard |
| 78691 | Pflugerville, TX | 6.7 mi SW | PO Box only |
| 78681 | Round Rock, TX | 6.8 mi W | Standard |
| 78660 | Pflugerville, TX | 6.9 mi SW | Standard |
| 78764 | Austin, TX | 7.8 mi SW | PO Box only |
| 78728 | Austin, TX | 8.9 mi SW | Standard |
| 78680 | Round Rock, TX | 9.3 mi N | PO Box only |
| 78682 | Round Rock, TX | 9.3 mi N | Unique |
| 78683 | Round Rock, TX | 9.3 mi N | PO Box only |
| 78626 | Georgetown, TX | 9.6 mi NW | Standard |
| 78627 | Georgetown, TX | 9.9 mi NW | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 78634 or measure the distance to another ZIP code.
How to address mail to 78634
123 MAIN ST
HUTTO TX 78634
Put the city, the two-letter state code and the ZIP code on the last line. Avoid Monadale: USPS doesn’t recognize it as the city for this ZIP code. Adding the 4-digit ZIP+4 code (78634-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 78634?
- 78634 is a Hutto, Texas ZIP code.
- What county is 78634 in?
- ZIP code 78634 is in Williamson County, Texas.
- What time zone is ZIP code 78634 in?
- 78634 is in the Central Time zone (America/Chicago).
- What area code is 78634?
- Phone numbers in ZIP code 78634 use area codes 512 and 737.
- What is the population of ZIP code 78634?
- About 46,413 people live in ZIP code 78634, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 78634?
- The median household income in 78634 is $114,426 a year, higher than 91% of Texas ZIP codes.
- What ZIP codes are near 78634?
- The nearest ZIP codes to 78634 are 78664 (Round Rock, 6 miles), 78665 (Round Rock, 6 miles), 78691 (Pflugerville, 6.7 miles) and 78681 (Round Rock, 6.8 miles).