Marshall County, Illinois ZIP Codes
- ZIP records
8 - Cities represented
8 - Sum of listed ZIP population estimates
9,553
Population sum includes positive estimates in these ZIP records; it is not an official county population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | Population estimate |
|---|---|---|---|
| 1 | 61540 | Lacon | 2,753 |
| 2 | 61537 | Henry | 2,743 |
| 3 | 61369 | Toluca | 1,594 |
| 4 | 61565 | Sparland | 1,262 |
| 5 | 61375 | Varna | 989 |
| 6 | 61541 | La Rose | 97 |
| 7 | 61479 | Speer | 95 |
| 8 | 61424 | Camp Grove | 20 |
Cities in Marshall County
ZIP Directory
Browse all ZIP data for Illinois
Methodology: Records are grouped by the source file's listed county and state. Population sums add positive ZIP-level estimates and are not official county totals; city counts use distinct city labels in the source.