| City: | Houston, Texas |
| County: | Harris County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 9:41:00 AM |
| Population: | No Population Data |
| Area Codes: | 281 / 346 / 621 / 713 / 832 |
| Classification: | PO Box |
| Coordinates: | 29.7632, -95.3633 |
| Quick Link: |
ZIP code 77251 serves a single location on Hadley Street in Houston's Midtown neighborhood. The ZIP handles 183 PO Boxes at what appears to be a centralized postal facility, though the classification shows one carrier route serving 116 delivery points on Hadley Street. This isn't a residential community—it's a postal processing zone within urban Houston.
The address sits in Harris County near the intersection of South Central Houston and Midtown, one of Houston's densest urban areas. With 234 businesses recorded but zero residential population in the ZIP itself, this functions as a business mail hub. The facility code indicates city carrier delivery capability, but the service primarily operates through PO Box assignments rather than door-to-door routes. Residents and businesses in the surrounding 77004 ZIP code area often use 77251 PO Boxes for mail receiving purposes.
77251 operates from a single Hadley Street address in Midtown Houston. Unlike typical ZIP codes that cover multiple streets or neighborhoods, this functions as a centralized PO Box facility serving urban Houston customers who prefer box delivery over street addresses.
ZIP Code 77251 supports both business and residential activity. According to the Business Census (2024), there are 13 business establishments, employing about 958 people with an annual payroll of $152,608,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 412Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 13Source: CBP |
| 1st Quarter Payroll: | $66,735,000Source: CBP |
| Annual Payroll: | $152,608,000Source: CBP |
| # of Employees: | 958Source: CBP |
ZIP Code 77251 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 5,946,800 people, about 0.00% of whom live in ZIP Code 77251. 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: | 5,946,800Source: 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 77251 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.