| Iosco | | | | | |
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| Land Use Classification | Thousand Acres | | Timberland Forest Type | Thousand Acres | |
| Total land & water | 1,210.1 | | Jack pine | 40.5 | |
| Other forest land | 1.8 | | Red pine | 42.3 | |
| Reserved Timberland | 0.0 | | White pine | 6.4 | |
| Nonforest land | 103.6 | | Balsam - Poplar | 6.6 | |
| Timberland | 242.6 | | Paper Birch | 4.6 | |
| Water | 862.1 | | Aspen | 35.3 | |
| | | Maple - Birch | 30.7 | |
| Timberland Ownership | Thousand Acres | | Elm - Ash - Soft Maple | 25.4 | |
| Total Timberland | 242.6 | | Oak - Hickory | 23.8 | |
| Forest Industry | 0.0 | | Tamarack | 5.2 | |
| Private Individual | 98.7 | | N. White Cedar | 21.8 | |
| State | 15.2 | | Black Spruce | 0.0 | |
| County and Municipal | 0.0 | | White Spruce | 0.0 | |
| National Forest | 107.8 | | Balsam fir | 0.0 | |
| Miscellaneous Federal Owners | 0.0 | | | | |
| Private - Corporation | 20.9 | | | | |
| Farmers | 0.0 | | | | |
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| Growing Stock Volume | Thousand Cubic Ft | | Sawtimber Volume | Thousand Board Ft | |
| Total Growing Stock Volume | 314,680 | | Total Sawtimber Volume | 807,836 | |
| Pine | 91,258 | | Pine | 256,874 | |
| Other Softwoods | 46,587 | | Other Softwoods | 117,647 | |
| Soft Hardwoods | 129,187 | | Soft Hardwoods | 321,952 | |
| Hard Hardwoods | 47,648 | | Hard Hardwoods | 111,363 | |
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| Average Net Annual Growth | Growing Stock | Sawtimber | Average Net Annual Removal | Growing Stock | Sawtimber |
| 1980-1993 | Thousand Cubic Feet | Thousand Board Feet | 1980-1993 | Thousand Cubic Feet | Thousand Board Feet |
| Total | 9,072 | 37,732 | Total | 3,559 | 9,600 |
| Pine | 3,185 | 14,426 | Pine | 674 | 1,379 |
| Other Softwoods | 1,044 | 3,502 | Other Softwoods | 375 | 1,463 |
| Soft Hardwoods | 3,484 | 14,269 | Soft Hardwoods | 2,169 | 6,052 |
| Hard Hardwoods | 1,359 | 5,535 | Hard Hardwoods | 341 | 706 |
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| Stocking Class | (Basal Area ft2/acre) | Thousand Acres | | | |
| Less than 16.7 | Nonstocked | 2.5 | | | |
| 16.7 to 60 | Poorly Stocked | 49.4 | | | |
| 60 to 100 | Medium Stocked | 68.7 | | | |
| 100 to 130 | Fully Stocked | 83.3 | | | |
| 130+ | Overstocked | 38.7 | | | |
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