Usps Holidays 2025 Illinois. Public holidays in illinois for 2025 in 2025, independence day will be celebrated across illinois on july 4th. Comprehensive list of national and regional public holidays that are celebrated in illinois, usa during 2025 with dates and information on the origin and meaning of holidays.

For us post office holidays 2025 list please visit usps holidays 2025. Public holidays in illinois for 2025 in 2025, independence day will be celebrated across illinois on july 4th.