Total population (1990 census): 70887
County seat: Marquette
Crop Statistics (1997 US Census of Agriculture)
| Cereals | Farms | Acres | Yield | |
| Barley | 5 | 309 | 19435 bu | |
| Oats | 13 | 256 | 12565 bu | |
| Forages | Farms | Acres | Yield | |
| Total Hay* | 52 | 5617 | 10055 tons, dry | |
| Alfalfa Hay | 22 | 1761 | 4091 tons, dry | |
| Small Grain Hay | 3 | (D) | (D) | |
| Tame Hay | 35 | 2360 | 4050 tons, dry | |
| Wild Hay | 4 | (D) | (D) | |
| Grass Silage | 9 | 1388 | 5162 tons, grn | |
| Corn for Silage | 9 | 693 | 9662 tons, grn | |
| Fruits | Farms | Acres | Yield | |
| Apples | 9 | 36 | 2999 trees | |
| Cherries, Total | 3 | 5 | (D) | |
| Pears | 3 | (D) | (D) | |
| Other Crops | Farms | Acres | Yield | |
| Maple Trees Tapped (Number of Taps) | 4 | 30 | 1260 | |
| Nursery and Greenhouse Crops, Cut Christmas Trees Harvested, Mushrooms, and Sod Grown for Sale | Farms | Sq. ft. under glass or other protection | Acres in the open | Sales ($1,000) |
| Nursery and Greenhouse Crops | 16 | (D) | 253 | 245 |
| Cut Christmas Trees Harvested | 6 | (X) | 22 | (D) |
| Nursery Crops | 3 | - | (D) | (D) |
| Other Nursery and Greenhouse Crops | 11 | - | (D) | 33 |
*Alfalfa, grass silage, green chops etc.
D=Withheld to avoid disclosing data for individual farms.
X=Not applicable.