| Table 1. Tributaries of the Lower Naugatuck River. | |
| Stream Name | Destination and Location of Mouth |
| Steele Brook | Naugatuck River from west, Waterbury |
| Great Brook | Naugatuck River from east, Waterbury |
| Mad Rive | Naugatuck River from east, Waterbury |
| Lily Brook | Mad River from southeast, Woodtick |
| Old Tannery Brook | Mad River from north, Woodtick |
| Beaverpond Brook | Mad River from southeast, Waterbury |
| Fulling Mill Brook | Naugatuck River from east, Union City |
| Cold Spring Brook | Fulling Mill Brook from south, Union City |
| Hop Brook | Naugatuck River from west, Union City |
| Goat Brook | Hop Brook from west, Middlebury |
| Long Swamp Brook | Hop Brook from north, Middlebury |
| Shattuck Brook | Hop Brook from south, Bradleyville |
| Wooster Brook | Hop Brook from north, Bradleyville |
| Welton Brook | Hop Brook from north, Bradleyville |
| Pigeon Brook | Hop Brook from west, Naugatuck |
| Long Meadow Pond Brook | Naugatuck River from west, Naugatuck |
| Beacon Hill Brook | Naugatuck River from east, Naugatuck |
| Straitsville Brook | Beacon Hill from north Straitsville |
| Marks Brook | Beacon Hill from north Straitsville |
| Spruce Brook | Naugatuck River from west, Beacon Falls |
| Hockanum Brook | Naugatuck River from east, Beacon Falls |
| Hemp Swamp Brook | Naugatuck River from west, Beacon Falls |
| Rimmon Brook | Naugatuck River from northeast, Seymour |
| Mud Brook | Naugatuck River from east, Seymour |
| Wooster Brook | Mud Brook from south, Seymour |
| Bladens River | Naugatuck River from east, Seymour |
| Pine Brook | Bladens River from north, Seymour |
| Hopp Brook | Bladens River from north, Seymour |
| Nickel Mine Brook | Naugatuck River from west, Seymour |
| Globe Mill Brook | Naugatuck River from west, Seymour |
| Little River | Naugatuck River from west, Seymour |
| Kinneytown Brook | Naugatuck River from west, Seymour |
| Towantic Brook | Little River from north Oxford |
| Jacks Brook | Little River from north Oxford |
| Riggs Street Brook | Jacks Brook from north, Oxford |
| Beaver Brook | Naugatuck River from east, Ansonia |