via the City of Madison Assessor’s office: “The 2008 Property Tax Base of the City of Madison (52K PDF)”. The City’s tax base continues to expand. There are 71,939 parcels in Madison, up from 40,069 in 1990. The Total 2008 assessed value is 21,496,000,000, up from $13,791,000,000 in 2002. Such growth provides great latidude in easing mill rates. Of course, as valuations flatten or decline, the mill rate may dramatically increase, depending on the magnitude of government/school spending increases.