| City: | Houston, Texas |
| County: | Harris County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 8:18:30 PM |
| Population: | No Population Data |
| Area Codes: | 281 / 346 / 621 / 713 / 832 |
| Classification: | PO Box |
| Coordinates: | 29.7632, -95.3633 |
| Quick Link: |
ZIP 77257 serves a commercial building at Unity Drive in Houston's Woodlake-Briar Meadow neighborhood on the city's west side. This isn't a residential area. The ZIP has zero population and functions as a specialized mail facility for a single business address.
The post office maintains 325 PO Boxes alongside 196 business delivery points, all concentrated at Unity Drive. ZIP+4 records show 152 entries for Unity Drive with unit designators, indicating a multi-tenant commercial building. Despite the PO Box classification, city carrier delivery does operate here, serving what the data identifies as a Large Volume Receiver location.
This ZIP contains 12 business establishments employing approximately 50 people. The point-only geography (no land area) places it within the boundaries of ZIP 77057, a standard Houston ZIP. Street delivery availability in the surrounding area means this isn't a PO Box Only Zone. The PO Box classification reflects the specialized nature of this commercial mail facility rather than a geographic community.
Addresses use the format:
[Recipient/Business Name]
Unity Dr #[Unit Number]
Houston, TX 77257Or for PO Box delivery:
PO Box [Number]
Houston, TX 77257Single commercial address with unit designators indicating multi-tenant building.
ZIP Code 77257 supports both business and residential activity. According to the Business Census (2024), there are 16 business establishments, employing about 67 people with an annual payroll of $4,233,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 487Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 16Source: CBP |
| 1st Quarter Payroll: | $1,208,000Source: CBP |
| Annual Payroll: | $4,233,000Source: CBP |
| # of Employees: | 67Source: CBP |
ZIP Code 77257 is located in Harris County, Texas, within the Houston-Pasadena-The Woodlands, TX Metropolitan Statistical Area (CBSA 26420) and Texas's 7th Congressional District. This Metro area has a population of 7,274,714 people, about 0.00% of whom live in ZIP Code 77257. 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: | 07Source: USPS |
| Congressional Land Area: | 161.94 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 77257 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.