The Metropolitan Zoological Park and Museum District or ZMD is a cultural tax district in St. Louis City and St. Louis County, Missouri. The district has five subdistricts, these being the St. Louis Art Museum, St. Louis Zoo, St. Louis Science Center, Missouri History Museum, and Missouri Botanical Garden. Of these, all but the Botanical Gardens are located in or near Forest Park. The subsidies provided by the district ensures that the institutions are public non-profits with free admission for all.
In the early 1960s, the St. Louis Art Museum and the St. Louis Zoo were both publicly funded by a tax in St. Louis City. Zoo chairman Howard Baer and his successor, Circuit Judge Thomas F. McGuire, worked with their supporters to secure the statute to establish the district. H.B. 23 authorized a 1969 vote in St. Louis City and County, where voters approved the creation of the tax district to fund the Zoo and Art Museum at a rate of 8 cents for every $100 assessed. The Science Center, which had previously received no tax benefit, was added at a rate of 4 cents for every $100 assessed.
Earl Wipfler was selected as the first Executive Director of the district in 1972, and he guided the initial creation of the district's budgeting and accounting procedures. The Missouri Supreme Court approved them. Wipfler served as Executive Director until 1990.
The Missouri Botanical Garden was added as the district's fourth subdistrict in 1983, and the History Museum in 1988.
Olney F. Otto served as the district's second executive director from 1990 until his death in 2001. Mr. J. Patrick Dougherty has served in the position since.
From an initial annual revenue of $3.9 million in 1972, the district grew to $72 million in 2008. In the past few years, around 85% of these funds have come from the county with the city providing only about 15%. Though the tax is the same in both places, the disparity in income and population accounts for the difference in money generated.