| City: | Saint Louis, Missouri |
| Names to Avoid: | USPS Inspection Service |
| County: | Saint Louis City County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 12:06:16 AM |
| Population: | No Population Data |
| Area Codes: | 314 / 557 |
| Classification: | Unique [Company/Government] |
| Coordinates: | 38.6272, -90.1978 |
| Quick Link: |
The United States Postal Inspection Service operates under dedicated ZIP code 63199 in Downtown St. Louis, Saint Louis City. As the federal law enforcement arm of the United States Postal Service, the Inspection Service investigates crimes that involve the U.S. Mail including mail fraud, identity theft, dangerous mail, and assaults on postal employees. The St. Louis office falls under the jurisdiction of the Inspector in Charge who oversees operations across the region.
Postal records identify a single delivery code routing mail to the Inspector in Charge facility on Walnut Street. This long-established designation has served the Postal Inspection Service for over two decades. No residential population exists within this ZIP, reflecting its purely federal law enforcement function. Saint Louis is the valid mailing city.
| Residential: | 0 |
| Business: | 1 |
Buildings registered in the USPS ZIP+4 database with designated codes for direct mail delivery.
ZIP Code 63199 is assigned to a single organization or institution. Detailed business demographics are not published for unique ZIP Codes. USPS data shows 0 residential mailboxes and 1 business mailboxes, reflecting local delivery coverage.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 1Source: USPS |
| Total Delivery Receptacles: | 1Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 0Source: CBP |
| 1st Quarter Payroll: | $0Source: CBP |
| Annual Payroll: | $0Source: CBP |
| # of Employees: | 0Source: CBP |
ZIP Code 63199 is located in Saint Louis City County, Missouri, within the St. Louis, MO-IL Metropolitan Statistical Area (CBSA 41180) and Missouri's 1st Congressional District. This Metro area has a population of 2,809,414 people, about 0.00% of whom live in ZIP Code 63199. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | St. Louis, MO-ILSource: Census |
| CBSA Number: | 41180Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 2,809,414Source: Census |
| MSA: | St. Louis, MO-IL MSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 01Source: USPS |
| Congressional Land Area: | 225.36 sq miSource: Census |
| PMSA: | --Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 2965000Source: Census |
| Place Name: | St. Louis city; MissouriSource: Census |
We could not locate which school district 63199 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.