| City: | Houston, Texas |
| County: | Harris County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 9:39:24 AM |
| Population: | No Population Data |
| Area Codes: | 281 / 346 / 621 / 713 / 832 |
| Classification: | PO Box |
| Coordinates: | 29.7634, -95.3634 |
| Quick Link: |
Despite having a P classification (PO Box only), 77001 does include one street delivery route on Hadley Street with 69 delivery points. The ZIP is embedded within the larger 77004 area and serves 285 businesses, many of which use the central PO Box facility for mail receipt. This configuration is typical for downtown urban cores where office buildings and commercial operations dominate, and centralized mail collection makes more sense than individual street delivery for every tenant.
Hadley Street is the only street route in this ZIP, with unit-based delivery suggesting multi-tenant buildings or townhomes typical of Houston's Midtown development pattern.
ZIP Code 77001 supports both business and residential activity. According to the Business Census (2024), there are 43 business establishments, employing about 2,821 people with an annual payroll of $513,827,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 602Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 43Source: CBP |
| 1st Quarter Payroll: | $169,309,000Source: CBP |
| Annual Payroll: | $513,827,000Source: CBP |
| # of Employees: | 2,821Source: CBP |
ZIP Code 77001 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 77001. 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 77001 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.