ZIP code 78644
Where is ZIP code 78644?
Lockhart, Texas
Caldwell County · Standard ZIP code
ZIP code 78644 belongs to Lockhart, Texas in Caldwell County. 78644 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, 737 and 830. About 22,348 people live in the 78644 area, where the median household income is $74,709. The closest ZIP codes are 78616 (Dale, 7.3 mi northeast), 78656 (Maxwell, 8.3 mi west) and 78622 (Fentress, 10.8 mi southwest).
| ZIP code | 78644 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Lockhart |
| State | Texas (TX) |
| County | Caldwell County |
| Time zone | Central Time · now |
| Area codes | 512, 737, 830 |
| Coordinates | 29.8868, -97.6769 map |
| 3-digit prefix | 786 |
Population and income in 78644
| Population | 22,348 · higher than 72% of Texas ZIP codes |
|---|---|
| People per square mile | 124 · higher than 54% of Texas ZIP codes |
| Median age | 39.2 years · higher than 55% of Texas ZIP codes |
| Men / women | 49% / 51% |
| Median household income | $74,709 · higher than 58% of Texas ZIP codes |
| Income per person | $31,228 |
| Below the poverty line | 13% |
| Bachelor’s degree or higher | 24% of adults 25+ |
| Median home value | $279,800 · higher than 71% of Texas ZIP codes |
| Median rent | $1,155 a month |
| Housing units | 8,175 |
| Households | 7,747 (2.65 people on average) |
| Owners / renters | 75% / 25% |
| Land area | 179.92 sq mi (plus 0.78 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 78644. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 78644
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 78616 | Dale, TX | 7.3 mi NE | Standard |
| 78656 | Maxwell, TX | 8.3 mi W | Standard |
| 78622 | Fentress, TX | 10.8 mi SW | PO Box only |
| 78655 | Martindale, TX | 10.9 mi W | Standard |
| 78670 | Staples, TX | 11.7 mi SW | PO Box only |
| 78661 | Prairie Lea, TX | 12 mi S | PO Box only |
| 78640 | Kyle, TX | 12.1 mi NW | Standard |
| 78648 | Luling, TX | 14.2 mi S | Standard |
| 78666 | San Marcos, TX | 15.8 mi W | Standard |
| 78747 | Austin, TX | 16.6 mi N | Standard |
| 78638 | Kingsbury, TX | 17.4 mi SW | Standard |
| 78662 | Red Rock, TX | 17.6 mi NE | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 78644 or measure the distance to another ZIP code.
How to address mail to 78644
123 MAIN ST
LOCKHART TX 78644
Put the city, the two-letter state code and the ZIP code on the last line. Avoid Mendoza and Seawillow: USPS doesn’t recognize them as the city for this ZIP code. Adding the 4-digit ZIP+4 code (78644-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 78644?
- 78644 is a Lockhart, Texas ZIP code.
- What county is 78644 in?
- ZIP code 78644 is in Caldwell County, Texas.
- What time zone is ZIP code 78644 in?
- 78644 is in the Central Time zone (America/Chicago).
- What area code is 78644?
- Phone numbers in ZIP code 78644 use area codes 512, 737 and 830.
- What is the population of ZIP code 78644?
- About 22,348 people live in ZIP code 78644, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 78644?
- The median household income in 78644 is $74,709 a year, higher than 58% of Texas ZIP codes.
- What ZIP codes are near 78644?
- The nearest ZIP codes to 78644 are 78616 (Dale, 7.3 miles), 78656 (Maxwell, 8.3 miles), 78622 (Fentress, 10.8 miles) and 78655 (Martindale, 10.9 miles).