Just to amplify Andrew’s point, from the 2007 Revenue Facts report:

State and/or local property taxes are levied in all 50 states. Rhode Island ranks very high in the percentage of state and local revenues generated from property taxes. It has traditionally relied more on local property taxes than most states. FY 2005 census data showed that it ranks seventh in state and local property taxes per $1,000 of personal income and sixth in state and local property taxes per capita.