Lake Iroquois is a 247-acre (1.00 km2) reservoir in northwestern Vermont, bordered by three towns: Hinesburg, Williston, and Richmond.

The towns share a beach on the lake, plus there is a public boat access.

[1] Approximately 32 streams flow into the lake on the north, east and west sides, the largest being the one that flows in from the northwest section (crossing Beebe Lane).

Lake Surface Area: 247 acres Drainage Basin Area: 2, 418 acres Maximum Depth: 37 ft. Average Depth: 19 ft. Elevation: 685 ft.

The LIA is an all volunteer membership organization, governed by an elected board of directors.