Since its inception in 1970 the G. P. M. Federal Credit Union has been serving its members in the SAN ANTONIO, Texas area with exceptional financial products. You can find their current interest rates on used car loans, new car loans, 1st mortgage loans and interest rates on both fixed and adjustable mortgages here on these pages. Currently led by Kathy Barrera, the G. P. M. FCU has grown its membership to over 199 with assets of more than $1,646,726. They have a main office and 1 branch offices.