Bring the whole family to the Milwaukee County  Zoo for FREE ZOO Day in 2020! Explore the winter loving animals, then warm up in the Aviary or Aquatic and Reptile Center. Everyone gets complimentary admission! Come on over to the Zoo! Admission is free! Regular parking($12), rental and concession rates still apply. January 4 February 1 March 7 9:30 am to 4:30 pm   Also, check out Frosty Free Week: North Shore Bank and Fox 6 Milwaukee sponsor these Family…