CHICAGO (Standard&Poor's CreditWire) Nov. 29, 1999--Standard&Poor's today assigned its double-'A'-plus rating to Polk County, Iowa's $4.78 million GO bonds series 1999 dated Dec. 1, 1999, due June 1, 2001-2010. The bonds are scheduled to sell Nov. 30, 1999. Additionally, Standard&Poor's today affirmed its double-'A'-plus rating on the county's $26.29 million GO bonds various series; $4.72 million taxable GO urban renewal bonds series 1997; and $710,000 GO capital loan notes series 1998. The outlook is positive. Also, Standard&Poor's today affirmed its single-'A'-plus rating on Polk County Health Services Inc., Iowa's $2.9 million series 1991 and 1994 bonds, guaranteed by Polk County. The rating reflects: -- A stable and diverse Des Moines, Iowa MSA
