Saturday, July 4 and Sunday, July 5, 2026 9:00AM - 5:00PM (last admission at 4PM) $2.50 per person Celebrate America 250 with Zoo Boise! Enjoy $2.50 admission on Saturday, July 4 and Sunday, July 5, 2026, as we join the City of Boise in commemorating the 250th anniversary of the founding of the United States and the signing of the Declaration of Independence. More details about City of Boise\'s America 250 celebrations.
