Lanark County Genealogical Society covers the the following communities across the county:

Original Townships

Bathurst
North Burgess
South Sherbrooke

Beckwith

Dalhousie
Darling
North Sherbrooke
Lanark
Lavant

Montague

Drummond
North Elmsley

Almonte
Pakenham
Ramsay

Now Part of

Tay Valley
Tay Valley
Tay Valley

Still Exists

Lanark Highlands
Lanark Highlands
Lanark Highlands
Lanark Highlands
Lanark Highlands

Still Exists

Drummond/North Elmsley
Drummond/North Elmsley

Mississippi Mills
Mississippi Mills
Mississippi Mills