When it comes to financial services, credit unions continued to remain best in class despite scoring a drop in overall customer satisfaction – but still high enough to beat out the banks.

According to the American Customer Satisfaction Index released Tuesday, customer satisfaction with credit unions fell 5.7% to an ACSI score of 82, which surpassed the overall score for banks at 77. Credit unions also experienced a drop in 2010 before bouncing back to a record high of 87% in 2011.

The ACSI rates companies at the national level and measures customer satisfaction across 10 economic sectors, 47 industries including e-commerce and e-business and more than 230 companies and federal or local government agencies on a 100-point scale.