| City: | Dayton, Ohio |
| County: | Montgomery County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 8:35:26 AM |
| Population: | No Population Data |
| Area Codes: | 326 / 937 |
| Classification: | PO Box |
| Coordinates: | 39.7587, -84.1919 |
| Quick Link: |
45401 serves the main USPS facility in downtown Dayton, Ohio. It's a point ZIP with no geographic territory of its own, contained entirely within the boundaries of neighboring 45402. No one lives in this ZCTA. Instead, it exists to provide PO Box and business mail services at the Dayton post office on E 5th Street.
The facility maintains 316 PO Boxes and serves 379 business delivery points. With 15 registered business establishments and 170 employees, this ZIP handles commercial mail operations for the greater Dayton area. The 32 named building records in the ZIP+4 database are all USPS departments: Distribution Operations, Business Mail Entry, Commercial Accounts, Postmaster, and various administrative units.
This isn't a PO Box Only Zone. Residents and businesses in Dayton have access to street delivery through other ZIP codes like 45402. The 45401 ZIP exists specifically for post office operations and customers who prefer a downtown PO Box for their mail. General Delivery service is also available here for those without a permanent address.
Only one street address exists: E 5th Street, the post office location. All 192 street-type records point to this single address with different unit designations.
ZIP Code 45401 supports both business and residential activity. According to the Business Census (2024), there are 15 business establishments, employing about 175 people with an annual payroll of $10,369,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 795Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 15Source: CBP |
| 1st Quarter Payroll: | $2,514,000Source: CBP |
| Annual Payroll: | $10,369,000Source: CBP |
| # of Employees: | 175Source: CBP |
ZIP Code 45401 is located in Montgomery County, Ohio, within the Dayton-Kettering-Beavercreek, OH Metropolitan Statistical Area (CBSA 19430) and Ohio's 10th Congressional District. This Metro area has a population of 813,608 people, about 0.00% of whom live in ZIP Code 45401. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Dayton-Kettering-Beavercreek, OHSource: Census |
| CBSA Number: | 19430Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 813,608Source: Census |
| MSA: | Dayton-Springfield, OH MSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 10Source: USPS |
| Congressional Land Area: | 1129.76 sq miSource: Census |
| PMSA: | --Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 3921000Source: Census |
| Place Name: | Dayton city; OhioSource: Census |
We could not locate which school district 45401 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.