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The United Counties of SDG Libraries offer a variety of programs and activities for community members of all ages.

Lancaster Branch


195 Military Road

Lancaster, ON, K0C 1N0


Ph: (613) 347-2311



Mon – 9:00 am to 2:00 pm

Tue – 10:00 am to 8:00 pm

Wed – 10:00 am to 8:00 pm

Thu – 10:00 am to 8:00 pm

Fri – 12:00 pm to 5:00 pm

Sat – 10:00 am to 2:00 pm

Williamstown Branch


St. Mary's Centre

19641 County Road 19

Williamstown, ON, K0C 2J0


Ph: (613) 347-3397



Mon – 2:00 pm to 6:00 pm

Wed – 10:00 am to 2:00 pm

Thu – 3:00 pm to 7:00 pm

Sat – 9:00 am to 2:00 pm

Library Express Depot – Glen Walter

The SDG County Library offers a Library Express service depot to members who live in the Township of South Glengarry. This alternative service is available due to a partnership with the owners of the Esso Gas Station at 18267 County Road 2 in Glen Walter.

With a SDG Library membership card, members can request books, DVDs and audiobooks online and the requested items will be delivered each week, on Mondays, to the Esso Station. When finished, the borrowed items are then returned to the Esso Station and may be handed to the person at the store counter or dropped into the Library's book return box.

For more information contact the Library Administration Office at (613) 936-8777.

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