Lakes / Rhode Island / Providence County / Ponaganset Reservoir
Ponaganset Reservoir, Rhode Island
220 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Rhode Island
41.88 degrees N, 71.74 degrees W - Providence County. State and county outlines drawn from Census boundary data; the lake marker is placed by its USGS National Hydrography Dataset coordinates, not by eye. Schematic - not a survey map.
How Ponaganset Reservoir Stacks Up
- Larger than 83% of the 121 lakes counted in Rhode Island.
- About 17 miles from Providence, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Burlingame Reservoir | Providence | 2.2 mi | 67 acres |
| Lake Washington | Providence | 2.7 mi | 41 acres |
| Keech Pond | Providence | 2.8 mi | 49 acres |
| Bowdish Reservoir | Providence | 3.3 mi | 220 acres |
| Smith and Sayles Reservoir | Providence | 3.5 mi | 173 acres |
| Pascoag Reservoir | Providence | 4.4 mi | 338 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Ponaganset Reservoir
How Big Is Ponaganset Reservoir?
Ponaganset Reservoir covers 220 acres in Providence County, Rhode Island.
What Is the Largest Lake in Providence County?
Scituate Reservoir is the largest lake in Providence County, at 2,340 acres.
Largest Lakes in Rhode Island
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Scituate Reservoir | Providence | 2,340 acres | - |
| 2 | Worden Pond | Washington | 1,097 acres | - |
| 3 | Flat River Reservoir | Kent | 593 acres | - |
| 4 | Watchaug Pond | Washington | 574 acres | - |
| 5 | Winnapaug Pond | Washington | 476 acres | - |
All 121 Rhode Island lakes ranked by surface area
Sources: USGS NHD (The National Map NHD MapServer layer 12) named waterbodies FTYPE 390/436; counties via Census point-in-polygon lake data (ID 127627504). Verified October 30, 2026.