The RGV Credit Union All Credit Levels is a cdfi lender from RGV Credit Union. This product reports activity to your personal credit report. RGV Credit Union is a financial institution located in Harlingen, TX, offering a range of banking services including checking and savings accounts, loans, and mortgages. It primarily serves the local community in the Rio Grande Valley region of Texas. Services include: personal loans, mortgages, auto loans. US Treasury certified CDFI Credit Union in Harlingen, TX. Membership required.