| Ahlgrim Ditch |
| Bloom Ditch |
| Brown Levee Ditch-Kankakee River |
| Calumet River-Frontal Lake Michigan |
| Clark Ditch-Salt Creek |
| Cobb Creek-Kankakee River |
| Coffee Creek-East Arm Little Calumet River |
| Cook Ditch |
| Cook Ditch-Hodge Ditch |
| Cornell Ditch-Phillips Ditch |
| Davis Ditch-Kankakee River |
| Deer Creek-Deep River |
| Duck Creek |
| Dunes Creek |
| East Branch Stony Run |
| Fisher Pond-Stony Run |
| Hannon Ditch-Crooked Creek |
| Headwaters Crooked Creek |
| Kemper Ditch-East Arm Little Calumet River |
| Kintzele Ditch |
| Koselki Ditch-Crooked Creek |
| Lake George-Deep River |
| Little Calumet River-Deep River |
| Rassmussen Ditch-Kankakee River |
| Reeves Ditch |
| Reynolds Creek-East Arm Little Calumet River |
| Sagers Lake-Salt Creek |
| Sievers Creek-Cobb Ditch |
| Squirrel Creek-Salt Creek |
| West Branch Crooked Creek |
| Willow Creek-Burns Ditch |
| Ahlgrim Ditch |
| Beverly Shores Tributary |
| Burns Ditch-Willow Creek |
| Cobb Creek-Breyfogel Ditch |
| Cobb Ditch-Sievers Creek |
| Cobb Ditch-Wolf Creek |
| Cook Ditch |
| Crooked Creek-Hannon Ditch |
| Crooked Creek-Headwaters (Porter) |
| Crooked Creek-Snake Island School |
| Damon Run |
| Deep River-Deer Creek |
| Deep River-Lake George Dam |
| Deep River-Little Calumet River |
| Duck Creek (Lake) |
| Dunes Creek |
| Eagle Creek-Stony Run |
| East Branch Stony Run |
| Greiger Ditch |
| Hodge Ditch-Cook Ditch |
| Hodge Ditch-Delehanty/Schatley Ditches |
| Kankakee River-Brown Levee Ditch |
| Kankakee River-Lawton/Davis Ditches |
| Kankakee River-Payne/Rassmussen Ditches |
| Kintzele Ditch |
| Koselki Ditch |
| Lake Michigan Shoreline-Dunes |
| Lake Michigan Shoreline-Ind Harbor Canal |
| Lake Michigan-Its Waters, Bays & Islands |
| Little Calumet River-Burns Ditch Outlet |
| Little Calumet River-Kemper Ditch |
| Little Calumet River-Reynolds Creek |
| Little Calumet River-Sand/Coffee Creeks |
| Phillips Ditch-Cornell Ditch |
| Reeves Ditch |
| Salt Creek-Clark Ditch |
| Salt Creek-Pepper Creek |
| Salt Creek-Sagers Lake/Valparaiso |
| Salt Creek-Squirrel Creek |
| Sandy Hook Ditch/Benkie Ditch-Kouts |
| Slocum Ditch |
| West Branch Crooked Creek-Flint Lake |
| BEVERLY SHORES |
|
| BURNS HARBOR |
|
| CHESTERTON |
| DAMON RUN CONSERVANCY DISTRICT |
|
| DUNE ACRES |
|
| FALLING WATERS CONSERVANCY DISTRICT |
|
| HEBRON |
|
| INDIAN BOUNDARY CONSERVANCY DISTRICT |
|
| KOUTS |
|
| LAKE ELIZA AREA CONSERVANCY DISTRICT |
|
| Lakes of the Four Seasons |
|
| NATURE WORKS CONSERVANCY DISTRICT |
|
| OGDEN DUNES |
|
| PINES |
|
| PORTAGE |
|
| PORTER |
| TWIN CREEKS CONSERVANCY DISTRICT |
| Unincorporated Porter County |
|
| VALPARAISO |
|
| VALPARAISO LAKES AREA CONSERVANCY DISTRICT |
|
| WHITE OAK CONSERVANCY DISTRICT |
