Lakes / Hawaii / Kauai County / Wailua Reservoir
Wailua Reservoir, Hawaii
48 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Hawaii
22.07 degrees N, 159.40 degrees W - Kauai 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 Wailua Reservoir Stacks Up
- Ranks #5 for surface area among the Hawaii lakes counted so far - 48 acres.
- About 6 miles from Lihue, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Kapaia Reservoir | Kauai | 3.2 mi | 34 acres |
| Halenānahu Reservoir | Kauai | 7.0 mi | 27 acres |
| Papuaa Reservoir | Kauai | 7.4 mi | 45 acres |
| Ka Loko Reservoir | Kauai | 7.9 mi | 38 acres |
| Puu Ka Ele Reservoir | Kauai | 8.2 mi | 26 acres |
| Menehune Fishpond | Kauai | 8.3 mi | 25 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Wailua Reservoir
How Big Is Wailua Reservoir?
Wailua Reservoir covers 48 acres in Kauai County, Hawaii.
What Is the Largest Lake in Kauai County?
Waita Reservoir is the largest lake in Kauai County, at 379 acres.
Largest Lakes in Hawaii
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Waita Reservoir | Kauai | 379 acres | - |
| 2 | Keālia Pond | Maui | 198 acres | - |
| 3 | Kanahā Pond | Maui | 52 acres | - |
| 4 | Alexander Reservoir | Kauai | 50 acres | - |
| 5 | Wailua Reservoir | Kauai | 48 acres | - |
All 11 Hawaii 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 31076532). Verified October 30, 2026.