ZIP code 78551
Where is ZIP code 78551?
Harlingen, Texas
Cameron County · PO Box only ZIP code
ZIP code 78551 belongs to Harlingen, Texas in Cameron County. 78551 is a PO Box only ZIP code: it is used for post office boxes at the Harlingen post office, not for street addresses. It is in the Central Time zone and uses area code 956. The closest ZIP codes are 78535 (Combes, 1.3 mi west), 78550 (Harlingen, 3.9 mi southeast) and 78553 (Harlingen, 4 mi south).
| ZIP code | 78551 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Harlingen |
| State | Texas (TX) |
| County | Cameron County |
| Time zone | Central Time · now |
| Area code | 956 |
| Coordinates | 26.2447, -97.7206 map |
| 3-digit prefix | 785 |
The Census Bureau doesn’t publish population figures for po box only ZIP codes because nobody lives at a PO Box or a single organization’s address. For figures about the area, see the nearby standard ZIP codes below.
ZIP codes near 78551
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 78535 | Combes, TX | 1.3 mi W | PO Box only |
| 78550 | Harlingen, TX | 3.9 mi SE | Standard |
| 78553 | Harlingen, TX | 4 mi S | PO Box only |
| 78552 | Harlingen, TX | 4.6 mi S | Standard |
| 78593 | Santa Rosa, TX | 6.6 mi W | Standard |
| 78559 | La Feria, TX | 8.5 mi SW | Standard |
| 78594 | Sebastian, TX | 8.9 mi NW | PO Box only |
| 78586 | San Benito, TX | 9 mi SE | Standard |
| 78583 | Rio Hondo, TX | 10.5 mi E | Standard |
| 78568 | Lozano, TX | 11.7 mi E | PO Box only |
| 78569 | Lyford, TX | 12 mi N | Standard |
| 78562 | La Villa, TX | 13.2 mi W | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 78551 or measure the distance to another ZIP code.
How to address mail to 78551
PO BOX 123
HARLINGEN TX 78551
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (78551-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Harlingen, TX
All Harlingen ZIP codes with population and income →
Questions
- What city is ZIP code 78551?
- 78551 is a Harlingen, Texas ZIP code.
- What county is 78551 in?
- ZIP code 78551 is in Cameron County, Texas.
- What time zone is ZIP code 78551 in?
- 78551 is in the Central Time zone (America/Chicago).
- What area code is 78551?
- Phone numbers in ZIP code 78551 use area code 956.
- Can I use 78551 for a street address?
- No. 78551 is only for PO Boxes. Street addresses in Harlingen use 78550, 78552.
- What ZIP codes are near 78551?
- The nearest ZIP codes to 78551 are 78535 (Combes, 1.3 miles), 78550 (Harlingen, 3.9 miles), 78553 (Harlingen, 4 miles) and 78552 (Harlingen, 4.6 miles).