International Association of Assessing Officials(IAAO) www.iaao.org

Illinois Department of Revenue www.revenue.state.il.us/
 
Illinois Property Tax Appeal Board:    http://www.state.il.us/agency/ptab/

Find out more with parcel maps, aerial photography and other useful information about property in Ogle County at the Ogle County GIS website: www.oglecountygis.org