Zip Code 61873 — Saint Joseph, IL
61873 is a ZIP Code associated with Saint Joseph, IL, located within Champaign. 61873 ranks #9 out of 29 ZIP codes in Champaign County by population (and #450 out of 1,396 in IL). The area supports an estimated population of 5,779 residents across Data Pending housing units, with a population density of 35.0 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (40.140690, -88.038170)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 61873 |
| Primary City | Saint Joseph |
| State / Province | IL |
| County | Champaign |
| Total Population | 5,779 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 35.0 people/sq mi |
| Timezone | America/Chicago |
How 61873 Compares
| Metric | ZIP 61873 | Champaign County | IL State Average |
|---|
| Population | 5,779 | 208,555 (Total) | 12,694,745 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 35.0 /sq mi | -- | -- |
| County Pop Rank | #9 of 29 | -- | -- |
Nearby ZIP Codes
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →