| 1990 | 2000 | Change | Percent Change | |
| Genesee County, Michigan | 430,459 | 436,141 | 5,682 | 1.30% |
| Lapeer County, Michigan | 74,768 | 87,904 | 13,136 | 17.60% |
| Lenawee County, Michigan | 91,476 | 98,890 | 7,414 | 8.10% |
| Livingston County, Michigan | 115,645 | 156,951 | 41,306 | 35.70% |
| Macomb County, Michigan | 717,400 | 788,149 | 70,749 | 9.90% |
| Monroe County, Michigan | 133,600 | 145,945 | 12,345 | 9.20% |
| Oakland County, Michigan | 1,083,592 | 1,194,156 | 110,564 | 10.20% |
| St. Clair County, Michigan | 145,607 | 164,235 | 18,628 | 12.80% |
| Washtenaw County, Michigan | 282,937 | 322,895 | 39,958 | 14.10% |
| Wayne County, Michigan | 2,111,687 | 2,061,162 | -50,525 | -2.40% |
| 1990 METROPOLITAN AREA | ||||
| FLINT MSA | ||||
| Genesee County, Michigan | 430,459 | 436,141 | 5,682 | 1.30% |
| ANN ARBOR PMSA | ||||
| Washtenaw County, Michigan | 282,937 | 322,895 | 39,958 | 14.10% |
| DETROIT PMSA | ||||
| Lapeer County, Michigan | 74,768 | 87,904 | 13,136 | 17.60% |
| Livingston County, Michigan | 115,645 | 156,951 | 41,306 | 35.70% |
| Macomb County, Michigan | 717,400 | 788,149 | 70,749 | 9.90% |
| Monroe County, Michigan | 133,600 | 145,945 | 12,345 | 9.20% |
| Oakland County, Michigan | 1,083,592 | 1,194,156 | 110,564 | 10.20% |
| St. Clair County, Michigan | 145,607 | 164,235 | 18,628 | 12.80% |
| Wayne County, Michigan | 2,111,687 | 2,061,162 | -50,525 | -2.40% |
| TOTAL | 4,382,299 | 4,598,502 | 216,203 | 4.90% |
| DET/AA CMSA | 4,665,236 | 4,921,397 | 256,161 | 5.50% |
| 2000 METRO AREA | ||||
| FLINT PMSA | ||||
| Genesee County, Michigan | 430,459 | 436,141 | 5,682 | 1.30% |
| ANN ARBOR PMSA | ||||
| Washtenaw County, Michigan | 282,937 | 322,895 | 39,958 | 14.10% |
| Lenawee County, Michigan | 91,476 | 98,890 | 7,414 | 8.10% |
| Livingston County, Michigan | 115,645 | 156,951 | 41,306 | 35.70% |
| TOTAL | 490,058 | 578,736 | 88,678 | 18.10% |
| DETROIT PMSA | ||||
| Lapeer County, Michigan | 74,768 | 87,904 | 13,136 | 17.60% |
| Macomb County, Michigan | 717,400 | 788,149 | 70,749 | 9.90% |
| Monroe County, Michigan | 133,600 | 145,945 | 12,345 | 9.20% |
| Oakland County, Michigan | 1,083,592 | 1,194,156 | 110,564 | 10.20% |
| St. Clair County, Michigan | 145,607 | 164,235 | 18,628 | 12.80% |
| Wayne County, Michigan | 2,111,687 | 2,061,162 | -50,525 | -2.40% |
| TOTAL | 4,266,654 | 4,441,551 | 174,897 | 4.10% |
| DET/AA/FLINT CMSA | 4,756,712 | 5,020,287 | 263,575 | 5.50% |