Education and Schools


About the Limestone District School Board (LDSB)

The Limestone District School Board (LDSB) serves the County of Frontenac and County of Lennox and Addington. Their 55 elementary schools, 11 secondary schools and Limestone School of Community Education have an attendance of over 24,000 students. LDSB operates one school in North Frontenac, Clarendon Central Public School in Plevna. Clarendon Central PS serves students from Junior Kindergarten to Grade 8. Visit Limestone District School Board for more information.

There are several schools within neighbouring municipalities that students may have the option to attend, depending on the location of your home within the Township.  Please check school eligibility search tool  to determine which school’s your child/youth may be eligible to attend.

Contact Tri.Board website for inquiries regarding bussing route, late buses and cancellations.
Elementary Schools
Clarendon Central Public School JK-8
(613) 479-2264
(613) 479-2589


Granite Ridge Education Centre JK-12
(613) 279-2131
(613) 279-3326



St. James Major Catholic School
(613) 279-3300
(613) 279-1120


North Addington Education Center
(613) 336-8991
(613) 336-8209

Secondary Schools

Granite Ridge Education Centre JK-12
(613) 279-2131
(613) 279-3326
North Addington Education Center
(613) 336-8991
(613) 336-8209
Rural Frontenac Community Services Child Center
1004 Art Duffy Road, Sharbot Lake, Ontario
(613) 279-2244
(613) 279-3366 (Daycare)
North Addington Childcare Center
(613) 336-6825
 Adult Learning
Northbrook and Sharbot Lake offer a wide range of training opportunities to adults and youth 16 and over. Training opportunities include computer training from the basics of computers, emails and internet, to digital photography, Microsoft programs, and advanced accounting software such as QuickBooks. Limestone District School Board credit courses are also available as both locations.
(613) 279-2499
Northbrook Location
(613) 336-0691

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