The Childrens Aid Society of the District of Thunder Bay

Caring for Children... a Community Responsibility

Contact Us

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For referrals or concerns about children, please phone us immediately at the number of your location below.

Likewise, if you have any questions or comments about our agency or service areas, please contact the appropriate location directly:





Thunder Bay Head Office
1110 Jade Court
Thunder Bay ON
P7B 6M7
Phone: (807) 343-6100
Toll-Free: 1-800-465-3905
Fax: (807) 343-0141
Marathon District Office
2 Ontario St, Suite 5
P.O. Box 340
Marathon ON
P0T 2E0
Phone: (807) 229-0580
Toll-Free: 1-800-465-3905
Fax: (807) 229-0593
Geraldton District Office
423 Main Street
P.O. Box 687
Geraldton ON
P0T 1M0
Phone: (807) 854-1910
Toll-Free: 1-800-465-3905
Fax: (807) 854-1936
Nipigon District Office
155 Railway Street
P.O. Box 1028
Nipigon ON
P0T 2J0
Phone: (807) 887-3035
Toll-Free: 1-800-465-3905
Fax: (807) 887-2211


Complaints Procedure

If you have sought or received services from a children’s aid society and have concerns about these services, you have a right to complain.

In many cases, you can discuss and resolve any concerns directly with your case worker or their supervisor in a way that provides good solutions for everyone involved. When this is not possible, you can complain directly in writing to your CAS.

For more information, contact us at the above locations or through the Child and Family Services Review Board at



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  Member of Ontario Association of Children's Aid Societies