Illinois ZIP Code Map with Counties
More than 1,500 ZIP codes cross Illinois, and this map shows every one of those boundaries over the state’s 102 color-coded counties. Seeing both layers at once shows which county any ZIP belongs to, with no separate map to cross-check.
- Borders for every ZIP code in the state
- All 102 Illinois counties, color-coded
- Clean fonts and colors for business and reference use
That combination fits work crossing both systems, like matching Illinois ZIP codes by county for sales territories, service areas, and distribution planning across the Land of Lincoln. It stays clear from Chicago down to the southern counties. Laminate or frame it depending on how you plan to use it.

