UN CHRONICLE (formerly UN MONTHLY CHRONICLE)
Briar Cliff University Library, April 1975 current
Morningside College Library, 1978-2003
Sioux City Public Library: Main, microfilm 1983 December 1995

UN MONTHLY CHRONICLE (formerly UNITED NATIONS REVIEW, now UN CHRONICLE)
Briar Cliff University Library, 1964 March 1975
Morningside College Library, 1964 1977

UNESCO COURIER (see also THE COURIER)
Briar Cliff University Library, June 1989-2001
Sioux City Public Library: Main, microfilm 1983 January 1996

UNITED NATIONS REVIEW (now UN MONTHLY CHRONICLE)
Briar Cliff University Library, 1954 1964
Morningside College Library, 1954 1964

UNIVERSITAS
Briar Cliff University Library, 1958 1994

UNIVERSITY OF CALIFORNIA AT BERKELEY WELLNESS LETTER
Sioux City Public Library: Main, microfilm 1992 January 1996

UNIVERSITY OF TORONTO QUARTERLY
Morningside College Library, 1965 winter 2003

URBAN REVIEW
Briar Cliff University Library, September 1971 1997

UROLOGIC CLINICS OF NORTH AMERICA
Mercy Medical Center Library, 1995 2007

UROLOGIC NURSING
St. Luke's Regional Medical Center Library, 5 years and current

UROLOGY
Mercy Medical Center Library, 1995 current

U.S. CATHOLIC
Briar Cliff University Library, 1965 current
Heelan High School, 5 years current
Sioux City Public Library: Main, microfilm 1983 March 1996

U.S. CONGRESS CONGRESSIONAL RECORD
Sioux City Public Library: Main, microfilm current issues only

U.S. DEPARTMENT OF STATE DISPATCH (formerly DEPARTMENT OF STATE BULLETIN)
Briar Cliff University Library, September 3, 1990 December 1999
Morningside College Library, 1990 1997
Sioux City Public Library: Main, microfilm September 3, 1990 December 15, 1995

U.S. NEWS & WORLD REPORT
Briar Cliff University Library, 1957 June 1995
Heelan High School, 5 years-current
Morningside College Library, 1942 2003, current 2 years
Sioux City Community High Schools: East, 2006 and current; West, 2003 -October 18, 2004 and March 2007-current
Sioux City Public Library: Main, 3 years and current, microfiche 1970 1988, microfilm 1983 March 25, 1996
Western Iowa Tech Library, current 3 years

USA TODAY (formerly INTELLECT)
Briar Cliff University Library, July 1978 current
Morningside College Library, July 1978 August 1997
Sioux City Public Library: Main, microfilm, July 1978 January 1996

USA TODAY (newspaper)
Briar Cliff University Library, 1 month and current
Morningside College Library, 3 months and current
Sioux City Public Library: Main, 2 months and current; Schroeder-Morningside Branch, 1 month and current
Western Iowa Tech Library, current month only

UTNE READER
Sioux City Community High Schools: West, January 2001-March/April 2004
Sioux City Public Library: Main, 5 years and current