Since its inception in 1968 the 1st Financial Federal Credit Union has been serving its members in the Wentzville, Missouri 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 Carol Minges, the 1st Financial FCU has grown its membership to over 32,810 with assets of more than $233,893,546. They have a main office and 4 branch offices.