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Issued by:
Ohio Department of Development , Office of Strategic Research
P.O. Box 1001, Columbus, Ohio 43266-0101, Telephone: (614) 466-2115, March, 1997
| COHORTS | 1990 | 1995 | 2000 | 2,005 | 2010 | 2015 |
| 0-4 | 100,300 | 111,400 | 103,300 | 100,000 | 103,500 | 114,700 |
| 5-9 | 95,300 | 96,400 | 107,600 | 100,800 | 97,800 | 102,200 |
| 10-14 | 89,800 | 93,400 | 94,600 | 106,600 | 100,000 | 97,600 |
| 15-19 | 90,200 | 89,100 | 93,200 | 96,000 | 108,700 | 103,500 |
| 20-24 | 94,700 | 82,900 | 82,400 | 89,200 | 93,000 | 107,700 |
| 25-29 | 116,000 | 87,600 | 75,900 | 76,400 | 83,300 | 87,700 |
| 30-34 | 122,100 | 112,600 | 84,700 | 73,900 | 74,700 | 82,200 |
| 35-39 | 108,700 | 115,900 | 106,800 | 80,700 | 70,600 | 72,600 |
| 40-44 | 94,900 | 104,100 | 111,400 | 103,500 | 78,100 | 68,900 |
| 45-49 | 74,700 | 91,000 | 100,100 | 108,000 | 100,500 | 76,100 |
| 50-54 | 66,300 | 70,800 | 86,700 | 96,200 | 104,000 | 97,100 |
| 55-59 | 65,800 | 61,500 | 65,900 | 81,800 | 91,000 | 99,100 |
| 60-64 | 72,400 | 58,800 | 54,900 | 60,100 | 75,300 | 84,700 |
| 65-69 | 72,400 | 62,500 | 50,500 | 48,100 | 53,100 | 67,600 |
| 70-74 | 58,100 | 60,100 | 51,700 | 42,400 | 40,700 | 45,700 |
| 75-79 | 43,700 | 44,900 | 46,700 | 40,800 | 33,700 | 32,900 |
| 80-84 | 26,300 | 30,600 | 31,600 | 33,400 | 29,500 | 25,100 |
| 85+ | 20,500 | 22,400 | 25,000 | 26,700 | 28,400 | 27,800 |
| TOTAL | 1,412,100 | 1,395,900 | 1,373,000 | 1,364,500 | 1,365,900 | 1,392,900 |