During its thirty-seven years of operation the District’s annual tax revenue has increased from $3.9 million dollars in 1972 to more than $72 million dollars in 2009. In recent years,  approximately 85% of the tax revenues come from the County taxpayers while City residents provide 15% of the District's tax revenues.

The expansion of the number of Subdistricts from three to five is indicative of the success and vitality of the original concept of a tax supported cultural district.  Today, the Metropolitan Zoological Park and Museum District is, perhaps, the largest tax supported cultural district in this country.  It is a model that other cities have often attempted to emulate.