ZIP code 78548
Where is ZIP code 78548?
Grulla, Texas
Starr County · PO Box only ZIP code
ZIP code 78548 belongs to Grulla, Texas in Starr County. 78548 is a PO Box only ZIP code: it is used for post office boxes at the Grulla post office, not for street addresses. It is in the Central Time zone and uses area code 956. About 1,341 people live in the 78548 area, where the median household income is $37,308. The closest ZIP codes are 78547 (Garciasville, 4.2 mi northwest), 78595 (Sullivan City, 5.4 mi east) and 78565 (Los Ebanos, 6.2 mi southeast).
| ZIP code | 78548 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Grulla |
| Also accepted | La Grulla |
| State | Texas (TX) |
| County | Starr County |
| Time zone | Central Time · now |
| Area code | 956 |
| Coordinates | 26.2897, -98.6479 map |
| 3-digit prefix | 785 |
Population and income in 78548
| Population | 1,341 · lower than 72% of Texas ZIP codes |
|---|---|
| People per square mile | 179 · higher than 58% of Texas ZIP codes |
| Median age | 29.8 years · lower than 92% of Texas ZIP codes |
| Men / women | 43% / 57% |
| Median household income | $37,308 · lower than 96% of Texas ZIP codes |
| Income per person | $16,145 |
| Below the poverty line | 19% |
| Bachelor’s degree or higher | 1.0% of adults 25+ |
| Median home value | $54,400 · lower than 99% of Texas ZIP codes |
| Median rent | $791 a month |
| Housing units | 528 |
| Households | 410 (3.27 people on average) |
| Owners / renters | 85% / 15% |
| Land area | 7.48 sq mi |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 78548. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 78548
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 78547 | Garciasville, TX | 4.2 mi NW | PO Box only |
| 78595 | Sullivan City, TX | 5.4 mi E | Standard |
| 78565 | Los Ebanos, TX | 6.2 mi SE | PO Box only |
| 78560 | La Joya, TX | 11.2 mi E | Standard |
| 78582 | Rio Grande City, TX | 12.4 mi NW | Standard |
| 78576 | Penitas, TX | 12.5 mi E | Standard |
| 78574 | Mission, TX | 17.3 mi E | Standard |
| 78572 | Mission, TX | 20.6 mi E | Standard |
| 78573 | Mission, TX | 21.5 mi E | Standard |
| 78591 | Santa Elena, TX | 21.8 mi N | Standard |
| 78584 | Roma, TX | 23.8 mi NW | Standard |
| 78541 | Edinburg, TX | 25 mi NE | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 78548 or measure the distance to another ZIP code.
How to address mail to 78548
PO BOX 123
GRULLA TX 78548
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts LA GRULLA as the city name for 78548. Adding the 4-digit ZIP+4 code (78548-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 78548?
- 78548 is a Grulla, Texas ZIP code. La Grulla is also accepted as the city name.
- What county is 78548 in?
- ZIP code 78548 is in Starr County, Texas.
- What time zone is ZIP code 78548 in?
- 78548 is in the Central Time zone (America/Chicago).
- What area code is 78548?
- Phone numbers in ZIP code 78548 use area code 956.
- What is the population of ZIP code 78548?
- About 1,341 people live in ZIP code 78548, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 78548?
- The median household income in 78548 is $37,308 a year, lower than 96% of Texas ZIP codes.
- Can I use 78548 for a street address?
- No. 78548 is only for PO Boxes. Street addresses in Grulla use another ZIP code.
- What ZIP codes are near 78548?
- The nearest ZIP codes to 78548 are 78547 (Garciasville, 4.2 miles), 78595 (Sullivan City, 5.4 miles), 78565 (Los Ebanos, 6.2 miles) and 78560 (La Joya, 11.2 miles).