ZIP code 78640
Where is ZIP code 78640?
Kyle, Texas
Hays County · Standard ZIP code
ZIP code 78640 belongs to Kyle, Texas in Hays County. 78640 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 77,531 people live in the 78640 area, where the median household income is $90,075. The closest ZIP codes are 78610 (Buda, 6.7 mi north), 78656 (Maxwell, 7.1 mi south) and 78652 (Manchaca, 8.8 mi north).
| ZIP code | 78640 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Kyle |
| Also accepted | Niederwald, Uhland |
| State | Texas (TX) |
| County | Hays County |
| Time zone | Central Time · now |
| Area codes | 512, 737 |
| Coordinates | 29.9966, -97.8335 map |
| 3-digit prefix | 786 |
Population and income in 78640
| Population | 77,531 · higher than 98% of Texas ZIP codes |
|---|---|
| People per square mile | 866 · higher than 70% of Texas ZIP codes |
| Median age | 33.4 years · lower than 78% of Texas ZIP codes |
| Men / women | 51% / 49% |
| Median household income | $90,075 · higher than 77% of Texas ZIP codes |
| Income per person | $36,864 |
| Below the poverty line | 10% |
| Bachelor’s degree or higher | 29% of adults 25+ |
| Median home value | $330,400 · higher than 79% of Texas ZIP codes |
| Median rent | $1,730 a month |
| Housing units | 28,135 |
| Households | 27,375 (2.81 people on average) |
| Owners / renters | 71% / 29% |
| Land area | 89.57 sq mi (plus 0.75 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 78640. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 78640
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 78610 | Buda, TX | 6.7 mi N | Standard |
| 78656 | Maxwell, TX | 7.1 mi S | Standard |
| 78652 | Manchaca, TX | 8.8 mi N | Standard |
| 78747 | Austin, TX | 10.1 mi NE | Standard |
| 78666 | San Marcos, TX | 10.5 mi SW | Standard |
| 78655 | Martindale, TX | 10.9 mi S | Standard |
| 78667 | San Marcos, TX | 10.9 mi W | PO Box only |
| 78644 | Lockhart, TX | 12.1 mi SE | Standard |
| 78748 | Austin, TX | 12.3 mi N | Standard |
| 78739 | Austin, TX | 12.4 mi N | Standard |
| 78619 | Driftwood, TX | 14.2 mi NW | Standard |
| 78744 | Austin, TX | 14.2 mi N | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 78640 or measure the distance to another ZIP code.
How to address mail to 78640
123 MAIN ST
KYLE TX 78640
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts NIEDERWALD and UHLAND as the city name for 78640. Adding the 4-digit ZIP+4 code (78640-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 78640?
- 78640 is a Kyle, Texas ZIP code. Niederwald and Uhland are also accepted as the city name.
- What county is 78640 in?
- ZIP code 78640 is in Hays County, Texas.
- What time zone is ZIP code 78640 in?
- 78640 is in the Central Time zone (America/Chicago).
- What area code is 78640?
- Phone numbers in ZIP code 78640 use area codes 512 and 737.
- What is the population of ZIP code 78640?
- About 77,531 people live in ZIP code 78640, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 78640?
- The median household income in 78640 is $90,075 a year, higher than 77% of Texas ZIP codes.
- What ZIP codes are near 78640?
- The nearest ZIP codes to 78640 are 78610 (Buda, 6.7 miles), 78656 (Maxwell, 7.1 miles), 78652 (Manchaca, 8.8 miles) and 78747 (Austin, 10.1 miles).