Lakes / Rhode Island / Providence County / Diamond Hill Reservoir
Diamond Hill Reservoir, Rhode Island
341 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Rhode Island
42.00 degrees N, 71.40 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 Diamond Hill Reservoir Stacks Up
- Ranks #9 for surface area among the Rhode Island lakes counted so far - 341 acres.
- About 12 miles from Providence, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Arnold Mills Reservoir | Providence | 0.9 mi | 256 acres |
| Miscoe Lake | Providence | 1.5 mi | 44 acres |
| Rawson Pond | Providence | 2.3 mi | 29 acres |
| Sneech Pond | Providence | 2.9 mi | 60 acres |
| Robin Hollow Pond | Providence | 5.6 mi | 36 acres |
| Woonsocket Reservoir Number Three | Providence | 6.4 mi | 243 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Diamond Hill Reservoir
How Big Is Diamond Hill Reservoir?
Diamond Hill Reservoir covers 341 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 123913764). Verified October 30, 2026.