| 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 | |