The CLSA has 11 data collection sites at universities and affiliated research institutes from coast to coast:

• Vancouver, BC
• Surrey, BC
• Victoria, BC
• Calgary, AB
• Winnipeg, MB
• Ottawa, ON
• Hamilton, ON
• Sherbrooke, QC
• Montreal, QC
• Halifax, NS
• St. John's, NL

Participants visiting data collection sites live within a 25 to 50 kilometre radius of one of these locations. It is not possible to volunteer to participate in this study. Potential participants are selected at random.