[CTPP] Historical Census Data

We have been looking for historical census data and have had a difficult time. The data we are specifically looking for is population and housing information at the block level for 1990. But we would also like to find data from 1980 if possible. We are trying to look at some of the trends in our area that have changed over time. Part of the study area for one of the projects is in a rural area and data at block group and track levels are very broad and difficult to determine trends. If anyone has any suggestions on where we could find this data it would be greatly appreciated. Thank you in advance for your help. Thanks, Adam J Garms Transportation Planner Des Moines Area Metropolitan Planning Organization Merle Hay Centre 6200 Aurora Avenue, Suite 300W Urbandale, IA 50322-2866 Telephone: 515.334.0075 ext. 202 Facsimile: 515.334.0098 AJGarms(a)dmampo.org