| City: | Boyers, Pennsylvania |
| Names to Avoid: | Social Security Admin |
| County: | Butler County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 4:03:55 PM |
| Population: | No Population Data |
| Area Codes: | 582 / 724 / 814 |
| Classification: | Unique [Company/Government] |
| Coordinates: | 41.1086, -79.8995 |
| Quick Link: |
The Social Security Administration operates under dedicated ZIP code 16016 at the Iron Mountain underground facility in Butler County, Pennsylvania. This massive 315-acre complex occupies a former limestone mine that U.S. Steel began excavating in 1902 near the small town of Boyers, about an hour north of Pittsburgh. After mining operations ceased by 1950, the caverns became highly secure storage for corporate records and, beginning in 1954, federal government documents.
The underground location offers natural protection from weather extremes, electromagnetic pulses, and other threats, making it ideal for sensitive federal records. The Social Security Administration shares this facility with other federal agencies, each with dedicated ZIP codes to route correspondence. With only two delivery codes on file and no Census population data, the ZIP reflects a specialized records operation rather than a public-facing office. This dedicated postal designation has served the SSA for over two decades, with Boyers as the valid mailing city.
| Residential: | 0 |
| Business: | 2 |
ZIP Code 16016 is assigned to a single organization or institution. Detailed business demographics are not published for unique ZIP Codes.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 2Source: 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 16016 is located in Butler County, Pennsylvania, within the Pittsburgh, PA Metropolitan Statistical Area (CBSA 38300) and Pennsylvania's 16th Congressional District. This Metro area has a population of 2,443,921 people, about 0.00% of whom live in ZIP Code 16016. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Pittsburgh, PASource: Census |
| CBSA Number: | 38300Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 2,443,921Source: Census |
| MSA: | Pittsburgh, PA MSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 16Source: USPS |
| Congressional Land Area: | 997.68 sq miSource: Census |
| PMSA: | --Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | --Source: Census |
| Place Name: | --Source: Census |
We could not locate which school district 16016 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.