MIDFLORIDA Credit  Union Online Banking MID FLORIDA Credit Union began in 1954 as Polk County Teachers Credit Union. Now, MIDFLORIDA has over 30 branches and nearly 200,000 account members. Its assets exceed $1.8 billion. Customer Service Telephone 1(863) 688-3733 Online Banking Login How to Log In: 1. Go to www.midflorida.com. 2. Under “Online Services” at the top right side of the page, enter your user ID and click “Log In.” Note: If you forget your user ID or password, simply…