| City: | Houston, Texas |
| County: | Harris County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 8:16:38 PM |
| Population: | No Population Data |
| Area Codes: | 281 / 346 / 621 / 713 / 832 |
| Classification: | PO Box |
| Coordinates: | 29.7634, -95.3627 |
| Quick Link: |
ZIP code 77203 in Houston, Texas, is a PO Box-only facility that serves business customers in the Midtown and South Central Houston neighborhoods. The ZIP doesn't contain any residential addresses or street delivery routes—it exists solely to provide PO Box services to 14 businesses in the area.
This ZIP is geographically enclosed within ZIP code 77004, which handles the actual street delivery for the surrounding neighborhoods. Businesses that maintain PO Boxes here likely do so for mail security, professional image, or to separate business correspondence from physical location addresses. The ZIP's carrier route classification is "C" (city delivery), though this classification applies to the facility itself rather than indicating any carrier routes within the ZIP.
This ZIP contains no street delivery routes. All mail is handled through PO Boxes.
ZIP Code 77203 is designated for PO Box delivery only; business establishment and employment data are not available.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 14Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 0Source: CBP |
| 1st Quarter Payroll: | $0Source: CBP |
| Annual Payroll: | $0Source: CBP |
| # of Employees: | 0Source: CBP |
ZIP Code 77203 is located in Harris County, Texas, within the Houston-Pasadena-The Woodlands, TX Metropolitan Statistical Area (CBSA 26420) and Texas's 18th Congressional District. This Metro area has a population of 7,274,714 people, about 0.00% of whom live in ZIP Code 77203. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Houston-Pasadena-The Woodlands, TXSource: Census |
| CBSA Number: | 26420Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 7,274,714Source: Census |
| MSA: | Houston-Galveston-Brazoria, TX CMSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 18Source: USPS |
| Congressional Land Area: | 235.2 sq miSource: Census |
| PMSA: | Houston, TX PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 4835000Source: Census |
| Place Name: | Houston city; TexasSource: Census |
We could not locate which school district 77203 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 January 1, 2026.