| City: | Peoria, Illinois |
| Names to Avoid: | St Francis Hosp |
| County: | Peoria County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 8:13:24 AM |
| Population: | No Population Data |
| Area Codes: | 309 / 861 |
| Classification: | Unique [Company/Government] |
| Coordinates: | 40.6937, -89.5887 |
| Quick Link: |
OSF Saint Francis Medical Center, the largest hospital in central Illinois, operates under dedicated ZIP code 61637 in Peoria County. Founded in 1877 by Mother M. Frances Krasse and the Sisters of the Third Order of St. Francis, the facility began as a humble 35-bed hospital on property acquired from Lydia Moss Bradley, founder of Bradley University. The Sisters had fled Germany in 1875 and initially cared for orphans in Iowa before a German priest in Peoria asked them to stay and care for the sick.
Today OSF Saint Francis Medical Center is a 642-bed teaching hospital affiliated with the University of Illinois College of Medicine at Peoria. The state of Illinois designates it as the Level I adult and pediatric regional trauma center serving a 26-county region in mid-Illinois. Census County Business Patterns data indicates 7 establishments with 4,956 employees at this location on Glen Oak Avenue. This dedicated postal designation has served the medical center for over two decades. Peoria is the valid mailing city for this ZIP code.
| Establishments: | 7 |
| Employment: | 4,956 |
| Residential: | 0 |
| Business: | 1 |
Buildings registered in the USPS ZIP+4 database with designated codes for direct mail delivery.
ZIP Code 61637 supports both business and residential activity. According to the Business Census (2024), there are 7 business establishments, employing about 4,950 people with an annual payroll of $319,316,000. 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: | 7Source: CBP |
| 1st Quarter Payroll: | $69,149,000Source: CBP |
| Annual Payroll: | $319,316,000Source: CBP |
| # of Employees: | 4,950Source: CBP |
ZIP Code 61637 is located in Peoria County, Illinois, within the Peoria, IL Metropolitan Statistical Area (CBSA 37900) and Illinois's 17th Congressional District. This Metro area has a population of 379,186 people, about 0.00% of whom live in ZIP Code 61637. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Peoria, ILSource: Census |
| CBSA Number: | 37900Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 379,186Source: Census |
| MSA: | Peoria-Pekin, 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: | 1759000Source: Census |
| Place Name: | Peoria city; IllinoisSource: Census |
We could not locate which school district 61637 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 March 1, 2026.