TABLE II-4 1990 Population Age Distribution Kalamazoo County and the City
| Age | Kalamazoo County | Outside Kalamazoo City | Percent Distribution | Kalamazoo City | Percent Distribution | Difference in Percent Distribution |
| Under 5 | 16,312 | 10,286 | 7.2 | 6,026 | 7.5 | 0.3 |
| 5-9 | 15,565 | 10,593 | 7.4 | 4,972 | 6.2 | -1.2 |
| 10-14 | 14,275 | 10,054 | 7.0 | 4,221 | 5.3 | -1.8 |
| 15-19 | 18,625 | 9,813 | 6.9 | 8,812 | 11.0 | 4.1 |
| 20-24 | 24,360 | 10,957 | 7.7 | 13,403 | 16.7 | 9.0 |
| 25-34 | 37,838 | 23,715 | 16.6 | 14,123 | 17.6 | 1.0 |
| 35-44 | 33,818 | 24,114 | 16.8 | 9,704 | 12.1 | -4.8 |
| 45-54 | 21,910 | 16,337 | 11.4 | 5,573 | 6.9 | -4.5 |
| 55-64 | 16,984 | 12,253 | 8.6 | 4,731 | 5.9 | -2.7 |
| 65-74 | 13,441 | 9,014 | 6.3 | 4,427 | 5.5 | -0.8 |
| 75-84 | 7,662 | 4,641 | 3.2 | 3,021 | 3.8 | 0.5 |
| 85 + | 2,621 | 1,357 | 0.9 | 1,264 | 1.6 | 0.6 |
| Total | 223,411 | 143,134 | 100 | 80,277 | 100 | (0) |