Free Brookfield Zoo Days 2024 Schedule. Brookfield zoo's free days during the winter months provide an excellent opportunity to experience the magic of the animal kingdom without any admission fees. From january 3 through february 24, visitors can take advantage of free admission nearly any day of the week, on tuesdays, thursdays, saturdays, and sundays.

According to the zoo, parking and attraction fees will still apply. Brookfield, il—don’t hibernate this winter.