| City: | Katy, Texas |
| City Alias: | Park Row |
| County: | Harris County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 9:02:00 PM |
| Population: | No Population Data |
| Area Codes: | 281 / 346 / 832 |
| Classification: | PO Box |
| Coordinates: | 29.7857, -95.8242 |
| Quick Link: |
ZIP Code 77491 isn't a neighborhood or town. It's the Katy Post Office itself, located on Park Row Drive in the greater Houston area. With a footprint of less than one acre, this ZIP exists solely for PO Box services. It has no residential population because nobody lives at the post office.
The facility maintains 532 PO Boxes for residents and businesses in surrounding Katy communities. Those communities have their own ZIP codes with street delivery, so 77491 serves people who prefer or need a PO Box address. There are also 308 business delivery points associated with this location, likely commercial mailbox services operating from Park Row Drive.
Katy is one of Houston's fastest-growing suburbs, and this post office sits in a developed area surrounded by subdivisions: Cimarron, Silverstones, Mason North Lake, Memorial Parkway, and Cornerstone. All of these neighborhoods receive street mail through other Katy ZIP codes (77449, 77450, 77493, 77494). The 77491 ZIP exists as a separate designation specifically for the post office building and its PO Box customers.
"Park Row" was added as an acceptable mailing alias in March 2006, allowing mail addressed to either "Katy" or "Park Row" to reach this facility.
Park Row Drive is the only street in this ZIP, serving as the post office's physical address and home to commercial mailbox services.
ZIP Code 77491 supports both business and residential activity. According to the Business Census (2024), there are 4 business establishments, employing about 14 people with an annual payroll of $478,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 5,315Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 4Source: CBP |
| 1st Quarter Payroll: | $122,000Source: CBP |
| Annual Payroll: | $478,000Source: CBP |
| # of Employees: | 14Source: CBP |
ZIP Code 77491 is located in Harris County, Texas, within the Houston-Pasadena-The Woodlands, TX Metropolitan Statistical Area (CBSA 26420) and Texas's 8th Congressional District. This Metro area has a population of 7,274,714 people, about 0.00% of whom live in ZIP Code 77491. 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: | 08Source: USPS |
| Congressional Land Area: | 6053.76 sq miSource: Census |
| PMSA: | Houston, TX PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 4838476Source: Census |
| Place Name: | Katy city; TexasSource: Census |
We could not locate which school district 77491 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.