Lakes / Rhode Island / Providence County / Arnold Mills Reservoir
Arnold Mills Reservoir, Rhode Island
256 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Rhode Island
41.99 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 Arnold Mills Reservoir Stacks Up
- Larger than 88% of the 121 lakes counted in Rhode Island.
- About 11 miles from Providence, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Diamond Hill Reservoir | Providence | 0.9 mi | 341 acres |
| Rawson Pond | Providence | 1.3 mi | 29 acres |
| Miscoe Lake | Providence | 2.4 mi | 44 acres |
| Sneech Pond | Providence | 2.9 mi | 60 acres |
| Robin Hollow Pond | Providence | 4.7 mi | 36 acres |
| Scott Pond | Providence | 6.0 mi | 42 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Arnold Mills Reservoir
How Big Is Arnold Mills Reservoir?
Arnold Mills Reservoir covers 256 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 123913442). Verified October 30, 2026.