Administrative assistant salary in Mississauga, ON

The average salary for an Administrative Assistant is $24.59 per hour in Mississauga, ON. This figure is based on 432 salaries taken from job postings on Indeed in the past 36 months, last updated on October 18, 2026.

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Administrative Assistant salaries in Mississauga, ON typically range between a low of $17.60 and a high of $34.40 per hour, depending on experience and the hiring company.

Some of the highest-paying cities for Administrative Assistant in Mississauga, ON include York, ON at $25.54 per hour, Hamilton, ON at $24.45 per hour and Kingston, ON at $23.52 per hour.

Based on recent job postings on Indeed, some of the top-paying companies for Administrative Assistant in Mississauga, ON include RBC ($78,000 per year) and Bank of Canada ($78,000 per year).

Compensation can vary based on the specific niche and level of responsibility within the field. Here is how the average Administrative Assistant salary in Mississauga, ON compares to related positions:

• Entry Level Administrative Assistant: Average $12.47 per hour
• Junior Administrative Assistant: Average $18.92 per hour
• Senior Administrative Assistant: Average $53,109 per year