Warning: The information on this page is out of date and should NOT be used for Total Maximum Daily Load (TMDL) development.
| County | Total county area (sq miles) | Construction Activity1 (mi2) | Annual area under construction (% of total area) |
|---|---|---|---|
| Aitkin County | 1995 | 0.6016 | 0.030% |
| Anoka County | 446 | 1.2260 | 0.275% |
| Becker County | 1445 | 0.1977 | 0.014% |
| Beltrami County | 3056 | 0.1984 | 0.006% |
| Benton County | 413 | 0.3135 | 0.076% |
| Big Stone County | 528 | 0.0900 | 0.017% |
| Blue Earth County | 766 | 0.5403 | 0.071% |
| Brown County | 618 | 0.1692 | 0.027% |
| Carlton County | 875 | 0.2007 | 0.023% |
| Carver County | 376 | 0.6027 | 0.160% |
| Cass County | 2414 | 0.2563 | 0.011% |
| Chippewa County | 588 | 0.1425 | 0.024% |
| Chisago County | 442 | 0.1526 | 0.035% |
| Clay County | 1053 | 0.6622 | 0.063% |
| Clearwater County | 1030 | 0.0454 | 0.004% |
| Cook County | 3340 | 0.0915 | 0.003% |
| Cottonwood County | 649 | 0.4326 | 0.067% |
| Crow Wing County | 1157 | 0.2851 | 0.025% |
| Dakota County | 587 | 1.6078 | 0.274% |
| Dodge County | 440 | 0.1316 | 0.030% |
| Douglas County | 720 | 0.3551 | 0.049% |
| Faribault County | 722 | 0.1838 | 0.025% |
| Fillmore County | 862 | 0.1093 | 0.013% |
| Freeborn County | 722 | 0.1319 | 0.018% |
| Goodhue County | 780 | 0.2667 | 0.034% |
| Grant County | 575 | 0.1444 | 0.025% |
| Hennepin County | 607 | 2.8950 | 0.477% |
| Houston County | 569 | 0.1085 | 0.019% |
| Hubbard County | 999.39 | 0.1075 | 0.011% |
| Isanti County | 452 | 0.0859 | 0.019% |
| Itasca County | 2928 | 0.3148 | 0.011% |
| Jackson County | 719 | 0.2008 | 0.028% |
| Kanabec County | 534 | 0.0448 | 0.008% |
| Kandiyohi County | 862 | 0.3759 | 0.044% |
| Kittson County | 1104 | 0.1632 | 0.015% |
| Koochiching County | 3154 | 0.1985 | 0.006% |
| Lac qui Parle County | 778 | 0.0964 | 0.012% |
| Lake County | 2991 | 0.0834 | 0.003% |
| Lake of the Woods County | 1775 | 0.1502 | 0.008% |
| Le Sueur County | 474 | 0.1269 | 0.027% |
| Lincoln County | 548 | 0.0990 | 0.018% |
| Lyon County | 722 | 0.2983 | 0.041% |
| McLeod County | 506 | 0.0169 | 0.003% |
| Mahnomen County | 583 | 0.2035 | 0.035% |
| Marshall County | 1813 | 0.1318 | 0.007% |
| Martin County | 730 | 0.1662 | 0.023% |
| Meeker County | 645 | 0.6189 | 0.096% |
| Mille Lacs County | 682 | 0.0935 | 0.014% |
| Morrison County | 1153 | 0.3357 | 0.029% |
| Mower County | 712 | 0.1779 | 0.025% |
| Murray County | 720 | 0.0873 | 0.012% |
| Nicollet County | 467 | 0.3035 | 0.065% |
| Nobles County | 723 | 0.2169 | 0.030% |
| Norman County | 877 | 0.1217 | 0.014% |
| Olmsted County | 655 | 0.6493 | 0.099% |
| Otter Tail County | 2225 | 0.7390 | 0.033% |
| Pennington County | 618 | 0.2261 | 0.037% |
| Pine County | 1435 | 0.1986 | 0.014% |
| Pipestone County | 466 | 0.1418 | 0.030% |
| Polk County | 1998 | 0.4225 | 0.021% |
| Pope County | 717 | 0.1142 | 0.016% |
| Ramsey County | 170 | 1.1029 | 0.649% |
| Red Lake County | 432 | 0.0227 | 0.005% |
| Redwood County | 882 | 0.0755 | 0.009% |
| Renville County | 987 | 0.2086 | 0.021% |
| Rice County | 516 | 0.2513 | 0.049% |
| Rock County | 483 | 0.4014 | 0.083% |
| Roseau County | 1678 | 0.1523 | 0.009% |
| St. Louis County | 6860 | 0.7053 | 0.010% |
| Scott County | 368 | 1.0248 | 0.278% |
| Sherburne County | 451 | 0.0924 | 0.020% |
| Sibley County | 601 | 0.7457 | 0.124% |
| Stearns County | 1390 | 1.0429 | 0.075% |
| Steele County | 432 | 0.2276 | 0.053% |
| Stevens County | 575 | 0.1236 | 0.021% |
| Swift County | 752 | 0.0926 | 0.012% |
| Todd County | 980 | 0.0915 | 0.009% |
| Traverse County | 586 | 0.0255 | 0.004% |
| Wabasha County | 550 | 0.1801 | 0.033% |
| Wadena County | 543 | 0.0318 | 0.006% |
| Waseca County | 433 | 0.0540 | 0.012% |
| Washington County | 423 | 1.1657 | 0.276% |
| Watonwan County | 440 | 0.1079 | 0.025% |
| Wilkin County | 751 | 0.2353 | 0.031% |
| Winona County | 642 | 0.2371 | 0.037% |
| Wright County | 714 | 0.7056 | 0.099% |
| Yellow Medicine County | 763 | 0.1353 | 0.018% |
1Area as an average of past 5 years