| City: | Houston, Texas |
| County: | Harris County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 9:40:52 AM |
| Population: | No Population Data |
| Area Codes: | 281 / 346 / 621 / 713 / 832 |
| Classification: | PO Box |
| Coordinates: | 29.7632, -95.3633 |
| Quick Link: |
ZIP code 77235 is a PO Box facility serving a single location in Houston's Westbury area. The facility maintains 125 PO Boxes at 9400 Chimney Rock Road, anchored within a high-rise office building that houses 85 businesses. This isn't a residential zone—it's an administrative address serving the commercial tenants and organizations within that building.
The USPS has assigned 62 ZIP+4 records to this single street address, all designated with UNIT as the secondary address type. Those records cover the various suite numbers and business units within the building. The post office provides city carrier delivery to the building while simultaneously maintaining the PO Box facility, giving tenants tenants the option to receive mail either at their suite or through a PO Box. That dual service explains why this ZIP exists separately from the surrounding residential ZIP 77035, which encloses it.
The entire ZIP code serves one street address: 9400 Chimney Rock Road. This office building houses multiple businesses, each with its own unit number.
ZIP Code 77235 supports both business and residential activity. According to the Business Census (2024), there are 5 business establishments, employing about 51 people with an annual payroll of $631,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 206Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 5Source: CBP |
| 1st Quarter Payroll: | $194,000Source: CBP |
| Annual Payroll: | $631,000Source: CBP |
| # of Employees: | 51Source: CBP |
ZIP Code 77235 is located in Harris County, Texas, within the Houston-Pasadena-The Woodlands, TX Metropolitan Statistical Area (CBSA 26420) and Texas's 9th Congressional District. This Metro area has a population of 5,946,800 people, about 0.00% of whom live in ZIP Code 77235. 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: | 09Source: USPS |
| Congressional Land Area: | 165.64 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 77235 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 March 1, 2026.