| City: | Cincinnati, Ohio |
| Names to Avoid: | Envir Pro Agency |
| County: | Hamilton County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 9:52:30 PM |
| Population: | No Population Data |
| Area Codes: | 283 / 513 |
| Classification: | Unique [Company/Government] |
| Coordinates: | 39.1616, -84.4569 |
| Quick Link: |
The U.S. Environmental Protection Agency operates under dedicated ZIP code 45268 at its Andrew W. Breidenbach Environmental Research Center in Cincinnati's Clifton neighborhood, Hamilton County, Ohio. This 22-acre complex, opened in 1978, ranks as the second-largest EPA research and development facility in the nation. The center conducts internationally recognized research in water quality, bioremediation, hazardous waste management, and emergency response. EPA's homeland security research center is also headquartered here.
Postal records show 2 ZIP+4 codes routing mail to buildings on Martin Luther King Drive. Census County Business Patterns data indicates 6 establishments and 56 employees within this ZIP, though the facility employs approximately 980 staff in laboratory positions. Cincinnati serves as the valid mailing city for correspondence to this federal environmental research facility.
| Establishments: | 6 |
| Employment: | 56 |
Buildings registered in the USPS ZIP+4 database with designated codes for direct mail delivery.
ZIP Code 45268 supports both business and residential activity. According to the Business Census (2024), there are 6 business establishments, employing about 59 people with an annual payroll of $4,746,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 0Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 6Source: CBP |
| 1st Quarter Payroll: | $1,098,000Source: CBP |
| Annual Payroll: | $4,746,000Source: CBP |
| # of Employees: | 59Source: CBP |
ZIP Code 45268 is located in Hamilton County, Ohio, within the Cincinnati, OH-KY-IN Metropolitan Statistical Area (CBSA 17140) and Ohio's 1st Congressional District. This Metro area has a population of 2,130,151 people, about 0.00% of whom live in ZIP Code 45268. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Cincinnati, OH-KY-INSource: Census |
| CBSA Number: | 17140Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 2,130,151Source: Census |
| MSA: | Cincinnati-Hamilton, OH-KY-IN CMSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 01Source: USPS |
| Congressional Land Area: | 686.96 sq miSource: Census |
| PMSA: | Cincinnati, OH-KY-IN PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 3915000Source: Census |
| Place Name: | Cincinnati city; OhioSource: Census |
We could not locate which school district 45268 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.