This Page's Content Was Last Updated: July 21, 2026
Credit Union
Mainstreet Credit Union is a credit union located in Ontario. It was founded in 2014 through the merger of Unite Communities, Erie Shores and Woodslee credit unions. It primarily serves Southwestern Ontario.
Mainstreet Credit Union was formed in 2013 when Unigasco Community Credit Union in Chatham and Sydenham Community Credit Union in the London Middlesex area joined together. It expanded soon after when Lambton Financial Credit Union in Sarnia and Goderich Community Credit Union joined Mainstreet, broadening its service area across southwestern Ontario.
Mainstreet serves members as a member owned financial cooperative. It offers personal and business banking, borrowing, mortgages, investments, and financial advice, along with agricultural lending and financing for farms and rural businesses.
As a cooperative, Mainstreet reinvests profits into the communities it serves rather than distributing them to outside shareholders. Its work focuses on local ownership, practical advice, and financial services for members, businesses, farms, and communities in southwestern Ontario.
Provinces served
The account-related data on this page was last updated on July 20, 2026.
Chequing Account
Account details
Deposit Insurance
Deposits are insured by the Financial Services Regulatory Authority of Ontario (FSRA), via the Deposit Insurance Reserve Fund (DIRF).
Chequing Account
Account details
Deposit Insurance
Deposits are insured by the Financial Services Regulatory Authority of Ontario (FSRA), via the Deposit Insurance Reserve Fund (DIRF).
Savings Account
Account details
Deposit Insurance
Deposits are insured by the Financial Services Regulatory Authority of Ontario (FSRA), via the Deposit Insurance Reserve Fund (DIRF).
Savings Account
Account details
*Interest Rate Breakdown by Balance
| Balance amount | Interest rate |
|---|---|
| $0 to $4,999.99 | 0.70% |
| $5,000 to $24,999.99 | 0.75% |
| $25,000 to $49,999.99 | 0.80% |
| $50,000 to $99,999.99 | 0.85% |
| $100,000 or over | 0.90% |
Deposit Insurance
Deposits are insured by the Financial Services Regulatory Authority of Ontario (FSRA), via the Deposit Insurance Reserve Fund (DIRF).
| Metric | 2025 | YoY Change | 5-Year Change |
|---|---|---|---|
| Assets | $1.24B | +11.0% | +26.8% |
| Loans | $1.12B | +12.2% | +40.1% |
| Deposits | $1.04B | +7.4% | +18.6% |
| Mortgages + HELOCs | $737M | +15.0% | N/A |
| Revenue | $31M | +19.2% | +34.8% |
| Efficiency Ratio | 84.0% | — | — |
| Members | ~25,000 | — | — |
| Branches | 10 | — | — |
| Target Members / Region | Southwestern Ontario | — | — |
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