The 'AA-' rating on Sioux City, Iowa's series 2008A general obligation (GO) bonds reflects the following credit factors: The city's position as a regional economic and employment center, A stable population and tax base, Maintenance of good financial operations, and A moderate debt burden. Lessening these strengths are below-average income levels and high debt service carrying charges. Bond proceeds will refund the series 1997, 1998, 1999, and 2000 bonds for interest cost savings. The city's GO pledge secures the bonds. Additionally, the 'AA-' standard long-term rating and Standard&Poor's underlying rating (SPUR) on the city's outstanding debt have been affirmed. Sioux City is a regional trade, service, and health care center for west-central Iowa and portions of South Dakota