Editing Hamilton County, Ohio (section)

===Population===
The county's highest population was recorded in the 1970 U.S. Census. Since then, the county has lost population at an average rate of three percent per decade. Although Hamilton County is experiencing a decline in birth rates and has higher death rates in older age groups (cohorts), out-migration of residents is the key factor in population loss. In the last decade, this population loss has been reversed, and it is estimated that both Hamilton County and the City of Cincinnati have grown their populations.<ref name=pop>{{cite web|url=https://www.hamiltoncountyohio.gov/common/pages/DisplayFile.aspx?itemId=5398078|title=Population COMMUNITY COMPASS REPORT NO. 15-1|work=Hamilton County Regional Planning Commission|date=2004|access-date=March 1, 2020|archive-date=March 1, 2020|archive-url=https://web.archive.org/web/20200301183526/https://www.hamiltoncountyohio.gov/common/pages/DisplayFile.aspx%3FitemId%3D5398078|url-status=dead}}</ref>
The Cincinnati Metropolitan Statistical Area, over the last three decades has seen a 19 percent increase in population. Much of the region's growth has been through movement of Cincinnati and Hamilton County residents into neighboring counties.<ref name=pop/>