| City: | Brownsville, Texas |
| County: | Cameron County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 9:49:39 AM |
| Population: | No Population Data |
| Area Code: | 956 |
| Classification: | PO Box |
| Coordinates: | 25.9016, -97.4975 |
| Quick Link: |
ZIP code 78523 serves a single postal facility in Brownsville, Texas, near the Mexico border. This isn't a neighborhood ZIP. It's a point location on E Los Ebanos Boulevard with 801 PO Boxes and 317 business addresses.
Brownsville itself is the largest city in Cameron County and sits directly across the Rio Grande from Matamoros, Mexico. The 78523 post office operates within the larger 78520 ZIP territory, handling mail for residents and businesses who prefer or need a dedicated PO Box address separate from standard street delivery.
With all 138 ZIP+4 records tied to a single street address with unit numbers, this facility functions as a concentrated mail center. Customers pick up mail at this location rather than receiving home delivery. The 317 businesses using this address suggest commercial mailbox services or a mix of small enterprises operating from PO Box addresses.
Street delivery does exist in the surrounding area through other Brownsville ZIPs. This post office provides an alternative for those wanting a separate mailing address or needing PO Box services near downtown, which sits just 1.1 miles away.
All records point to a single address on E Los Ebanos Boulevard with unit designations.
ZIP Code 78523 supports both business and residential activity. According to the Business Census (2024), there are 23 business establishments, employing about 373 people with an annual payroll of $20,547,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 1,073Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 23Source: CBP |
| 1st Quarter Payroll: | $4,648,000Source: CBP |
| Annual Payroll: | $20,547,000Source: CBP |
| # of Employees: | 373Source: CBP |
ZIP Code 78523 is located in Cameron County, Texas, within the Brownsville-Harlingen, TX Metropolitan Statistical Area (CBSA 15180) and Texas's 34th Congressional District. This Metro area has a population of 406,220 people, about 0.00% of whom live in ZIP Code 78523. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Brownsville-Harlingen, TXSource: Census |
| CBSA Number: | 15180Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 406,220Source: Census |
| MSA: | Brownsville-Harlingen-San Benito, TX MSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 34Source: USPS |
| Congressional Land Area: | 8190.32 sq miSource: Census |
| PMSA: | --Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 4810768Source: Census |
| Place Name: | Brownsville city; TexasSource: Census |
We could not locate which school district 78523 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.