Field of membership includes those who live in Maricopa County and parts of Pinal County, Arizona. Also, it includes those who live in Travis County and parts of Williamson County, Texas. You can also be eligible to join via Select Employer Groups and via family. See site for details. Membership requires a minimum $25 deposit into the savings account.
TruWest has branches in Phoenix, Mesa, Chandler and Scottsdale of Arizona and in Austin, Texas. The credit union is federally insured by the NCUA. It has $749 million in assets and 66,563 members.
[Update 4/14/07: 5.75% IRA is no longer listed.]