| City: | Rockford, Illinois |
| County: | Winnebago County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 8:09:41 AM |
| Population: | No Population Data |
| Area Codes: | 779 / 815 |
| Classification: | PO Box |
| Coordinates: | 42.2712, -89.0939 |
| Quick Link: |
The post office sits at the center of Rockford's urban core, where the Rock River runs through the city. While the surrounding area has street addresses served by neighboring ZIPs like 61101, this ZIP exists purely for PO Box customers. It's a common setup in larger cities where downtown post offices maintain separate PO Box ZIPs to organize mail volume and provide convenient service for business districts.
This ZIP contains no street delivery routes. All addresses are PO Boxes maintained at the downtown Rockford post office.
ZIP Code 61106 is designated for PO Box delivery only; business establishment and employment data are not available.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 43Source: 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 61106 is located in Winnebago County, Illinois, within the Rockford, IL Metropolitan Statistical Area (CBSA 40420) and Illinois's 17th Congressional District. This Metro area has a population of 349,431 people, about 0.00% of whom live in ZIP Code 61106. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Rockford, ILSource: Census |
| CBSA Number: | 40420Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 349,431Source: Census |
| MSA: | Rockford, IL MSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 17Source: USPS |
| Congressional Land Area: | 6933.08 sq miSource: Census |
| PMSA: | --Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 1765000Source: Census |
| Place Name: | Rockford city; IllinoisSource: Census |
We could not locate which school district 61106 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.