Zip Code 78550 - Harlingen TX Texas, USA - Cameron County, ZIP code 78550 has a slightly less than average percentage of vacancies. The Census also indicates that there are one or more correctional facilities, nursing homes and universities nearby. The majority of household are owned or have a mortgage. Homes in ZIP code 78550 were primarily built., Sort by: Zip Code | City Name Cameron County-Texas Postal Codes. 78520 Acacia Lake: 956: Cameron County: Texas (TX) 78550 Adams Gardens: 956: Cameron County: Texas (TX) 78550 Arroyo: 956: Cameron County: Texas (TX) 78550 Avondale: 956: Cameron County: Texas (TX) 78578 Bahia Mar: 956: Cameron County: Texas (TX) 78566 Bayview: 956:, Zip code 78550 is primarily located in Cameron County. The official US Postal Service name for 78550 is HARLINGEN, Texas. Portions of zip code 78550 are contained within or border the city limits of Harlingen, TX, Combes, TX, Lasana, TX, Rio Hondo, TX, San Benito, TX, and Sebastian, TX. The area code for zip code 78550 is 956., ZIP Code 78553 is located in Cameron county in the state of Texas. 78553 ZIP Code is spread between the coordinates of +26.125242 Latitude and -097.475663 Longitude. 78553 ZIP Code is part of the 254 area code. There are 0 postal offices in zip code 78553 which we have listed below.. On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 78553., Zip Code 78550 EASY URL: 'ZipCode.org/78550' for Harlingen zip code., While some the 78550 zip code properties may not allow visitors at this time, most are open for business by phone or email. Please reach out to them directly for virtual touring options. Additionally, some properties may offer video and 3D tours, which can be found on the listing details page., In the ZIP code 78550, there are 20,130 residential delivery mailboxes and centralized units, and 2,366 commercial delivery mailbox and centralized units, 14,847 single family deliveries and 3,465 multifamily deliveries, and the box count is 22,495. The main post office has city delivery carrier routes for the ZIP code 78550., HARLINGEN TX Texas zip codes, maps, area codes, county, population, household income, house value,78550 Zip Code -, 56% of the 78550 zip code residents lived in the same house 5 years ago. Out of people who lived in different houses, 68% lived in this county. Out of people who lived in different counties, 50% lived in Texas. 90% of the 78550 zip code residents lived in the same house 1 year ago.