Populations, 2007 Estimates
Tri-County Region…………456,440
City of
City of
Median Age, 2007 Estimates
Tri-County Region: 35.8
Eaton County: 37.8
Ingham County: 31.8
Age Distribution
Under 18…. 24%
18-24…….. 9%
25-44……. 27%
45-64……… 29%
65 and over…… 12%
Under 18…. 23%
18-24…….. 10%
25-44……. 26%
45-64……… 29%
65 and over…… 12%
Under 18…. 22%
18-24…….. 19%
25-44……. 25%
45-64……… 23%
65 and over…… 10%
