Most vital and health statistics are not reported by city or smaller geographic area. You will find it reported at the state and county levels using the resources noted on this page and others that your community contacts may recommend.
Minnesota Department of Health - Health Statistics Portal
Death Statistics & Population Statistics are at the county level.
Iowa Department of Health - Health Snapshots by County
Variety of statistics such as Health Behaviors,Infectious Disease, Cancer, Population Statistics
South Dakota Department of Health
Information primarily at the state level.