ZIP code 78590
Where is ZIP code 78590?
San Perlita, Texas
Willacy County · PO Box only ZIP code
ZIP code 78590 belongs to San Perlita, Texas in Willacy County. 78590 is a PO Box only ZIP code: it is used for post office boxes at the San Perlita post office, not for street addresses. It is in the Central Time zone and uses area code 956. About 428 people live in the 78590 area, where the median household income is $82,292. The closest ZIP codes are 78580 (Raymondville, 9.8 mi west), 78569 (Lyford, 10.9 mi southwest) and 78598 (Port Mansfield, 13.8 mi east).
| ZIP code | 78590 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | San Perlita |
| State | Texas (TX) |
| County | Willacy County |
| Time zone | Central Time · now |
| Area code | 956 |
| Coordinates | 26.5012, -97.6397 map |
| 3-digit prefix | 785 |
Population and income in 78590
| Population | 428 · lower than 85% of Texas ZIP codes |
|---|---|
| People per square mile | 428 · higher than 65% of Texas ZIP codes |
| Median age | 30.4 years · lower than 91% of Texas ZIP codes |
| Men / women | 53% / 47% |
| Median household income | $82,292 · higher than 69% of Texas ZIP codes |
| Income per person | $22,722 |
| Below the poverty line | 21% |
| Bachelor’s degree or higher | 13% of adults 25+ |
| Median home value | $57,400 · lower than 98% of Texas ZIP codes |
| Housing units | 152 |
| Households | 97 (4.41 people on average) |
| Owners / renters | 100% / 0.0% |
| Land area | 1 sq mi (plus 0.01 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 78590. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 78590
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 78580 | Raymondville, TX | 9.8 mi W | Standard |
| 78569 | Lyford, TX | 10.9 mi SW | Standard |
| 78598 | Port Mansfield, TX | 13.8 mi E | PO Box only |
| 78594 | Sebastian, TX | 15.2 mi SW | PO Box only |
| 78561 | Lasara, TX | 17 mi W | PO Box only |
| 78551 | Harlingen, TX | 18.4 mi S | PO Box only |
| 78535 | Combes, TX | 18.8 mi S | PO Box only |
| 78583 | Rio Hondo, TX | 19.3 mi S | Standard |
| 78593 | Santa Rosa, TX | 20.5 mi SW | Standard |
| 78550 | Harlingen, TX | 21.4 mi S | Standard |
| 78553 | Harlingen, TX | 21.7 mi S | PO Box only |
| 78568 | Lozano, TX | 22.3 mi S | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 78590 or measure the distance to another ZIP code.
How to address mail to 78590
PO BOX 123
SAN PERLITA TX 78590
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (78590-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 78590?
- 78590 is a San Perlita, Texas ZIP code.
- What county is 78590 in?
- ZIP code 78590 is in Willacy County, Texas.
- What time zone is ZIP code 78590 in?
- 78590 is in the Central Time zone (America/Chicago).
- What area code is 78590?
- Phone numbers in ZIP code 78590 use area code 956.
- What is the population of ZIP code 78590?
- About 428 people live in ZIP code 78590, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 78590?
- The median household income in 78590 is $82,292 a year, higher than 69% of Texas ZIP codes.
- Can I use 78590 for a street address?
- No. 78590 is only for PO Boxes. Street addresses in San Perlita use another ZIP code.
- What ZIP codes are near 78590?
- The nearest ZIP codes to 78590 are 78580 (Raymondville, 9.8 miles), 78569 (Lyford, 10.9 miles), 78598 (Port Mansfield, 13.8 miles) and 78594 (Sebastian, 15.2 miles).