| Crooked Creek (Smith Lake) | AL | Reservoir Embayment | Fully Supporting | 0 | 698 |
| Crooked Creek Reservoir-Located within subsegment LA050301_00. This unit is added for advisory tracking purposes only and is not a subsegment as defined by LAC 33:IX.1123.A. et seq. No other assessment is made for this water body. | LA | Lake, Freshwater | Not Supporting | 1 | 396 |
| Crooked Lake | FL | Lake, Freshwater | Not Supporting | 1 | 4,276 |
| Crooked Lake | IN | Lake, Freshwater | Not Supporting | 1 | 206 |
| Crooked Lake | MI | Lake, Freshwater | Not Supporting | 1 | 287 |
| Crooked lake | MI | Lake, Freshwater | Not Supporting | 2 | 2,355 |
| Crooked Lake | MI | Lake, Freshwater | Not Supporting | 1 | 2,400 |
| Crooked Lake | MI | Lake, Freshwater | Not Supporting | 3 | 490 |
| Crooked Lake | MI | Lake, Freshwater | Not Supporting | 1 | 96 |
| Crooked Lake | ND | Lake, Natural | Fully Supporting | 0 | 627 |
| Crooked Lake | WI | Lake, Freshwater | Fully Supporting | 0 | 48 |
| Crooked Lake | WI | Lake, Freshwater | Fully Supporting | 0 | 51 |
| Crooked Lake | WI | Lake, Freshwater | Fully Supporting | 0 | 162 |
| CROOKED LAKE (Upper) | MI | Lake, Freshwater | Not Supporting | 1 | 672 |
| Crooked Lake Independence Oaks Co. Park Beach | MI | Inland Lake Shoreline | Not Supporting | 1 | Filed in miles |
| Crooked Lake Little Traverse Township Beach | MI | Inland Lake Shoreline | Not Supporting | 1 | Filed in miles |
| Crooked Lake Oden Beach | MI | Inland Lake Shoreline | Not Supporting | 1 | Filed in miles |
| Crooked Lake, McCabe Pond | NY | Lake/Reservoir/Pond | Not Supporting | 1 | 50 |
| Crooked Lake, more | NY | Lake/Reservoir/Pond | Not Supporting | 1 | 127 |
| Crooked Pond | NH | Lake/Reservoir/Pond | Not Supporting | 3 | 29 |
| Cross | IL | Lake, Freshwater | Not Supporting | 1 | 89 |
| Cross | MN | Lake, Freshwater | Not Supporting | 1 | 105 |
| Cross | MN | Lake, Freshwater | Not Supporting | 2 | 955 |
| Cross Creek Lake-05030101001797 | PA | Lake/Reservoir/Pond | Fully Supporting | 0 | 244 |
| Cross L | ME | Lake, Freshwater | Not Supporting | 2 | 2,515 |
| Cross Lake Reservoir (Main Basin) | MN | Lake, Freshwater | Not Supporting | 1 | 1,751 |
| Cross Lake Reservoir (Southeast Bay) | MN | Lake, Freshwater | Not Supporting | 1 | 10 |
| Cross Lake Reservoir (Unnamed Bay) | MN | Lake, Freshwater | Not Supporting | 1 | 15 |
| Cross Lake; includes tributaries | LA | Lake, Freshwater | Not Supporting | 1 | 8,138 |
| Cross River | MN | Lake, Freshwater | Not Supporting | 1 | 83 |
| Cross River Reservoir | NY | Lake/Reservoir/Pond | Not Supporting | 2 | 899 |
| Crossett Flatwater | AR | Lake, Freshwater | Not Supporting | 1 | 135 |
| Crossman Pond | MA | Lake, Freshwater | Not Supporting | 2 | 13 |
| Crosswicks Ck (below Doctors Creek) | NJ | Lake | Not Supporting | 8 | 31 |
| Crosswicks Ck (Ellisdale trib - Walnford) | NJ | Lake | Not Supporting | 5 | 2.07 |
| Crosswicks Ck (NewEgypt to/incl NorthRun) | NJ | Lake | Not Supporting | 4 | 41 |
| Croswell Impoundment (Black River) | MI | Reservoir | Not Supporting | 3 | 4.77 |
| Crotched Mtn Irrigation Pond Dam | NH | Impoundment | Not Supporting | 1 | 0.60 |
| Croton Dam Pond | MI | Reservoir | Not Supporting | 2 | 1,202 |
| Crouse Reservoir | UT | Lake, Freshwater | Not Supporting | 2 | 111 |
| Crow Creek (Lake Guntersville) | AL | Reservoir Embayment | Not Supporting | 1 | 1,400 |
| Crow River Mill Pond (East) | MN | Lake, Freshwater | Not Supporting | 1 | 28 |
| Crow River Mill Pond (West) | MN | Lake, Freshwater | Not Supporting | 1 | 5.16 |
| Crow River Mill Pond(Middle) | MN | Lake, Freshwater | Not Supporting | 1 | 17 |
| Crow Wing | MN | Lake, Freshwater | Not Supporting | 3 | 371 |
| Crowcroft Pond | NH | Lake/Reservoir/Pond | Not Supporting | 2 | 63 |
| Crowder Lake | OK | Lake, Freshwater | Not Supporting | 2 | 158 |
| Crowder St. Park Lake | MO | Reservoir | Not Supporting | 1 | 18 |
| Crowley Flowage 802 | WI | Reservoir | Not Supporting | 1 | 354 |
| Crowley Lake | CA | Lake/Reservoir/Pond | Not Supporting | 2 | 4,140 |