Since its inception in 1938 the Twinstar Credit Union has been serving its members in the OLYMPIA, Washington 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 Jeff Kennedy, the Twinstar CU has grown its membership to over 119,579 with assets of more than $1,217,560,210. They have a main office and 20 branch offices.