ELIGIBILITY: Any IAMU member utility

CRITERIA: Municipal utility must have served its consumers and community continuously for 100 years.

(Dates listed are the years of the utility's establishment)

Electric

• Algona (1898)
• Alta (1895)
• Alton (1969)
• Atlantic (1890)
• Cedar Falls (1913)
• Coggon (1929)
• Dayton (1938)
• Denison (1914)
• Glidden (1912)
• Graettinger (1942)
• Greenfield (1890)
• Harlan (1891)
• Hartley (1909)
• Independence (1893)
• Indianola (1892)
• Montezuma (1939)
• Mount Pleasant (1897)
• Muscatine (1922)
• New Hampton (1903)
• New London (1901)
• Ogden (1903)
• Onawa (1894)
• Pocahontas (1912)
• Rock Rapids (1896)
• Spencer (1901)
• State Center (1899)
• Stuart (1891)
• Traer (1919)
• Vinton (1895)
• Webster City (1890)
• Wilton (1893)
• Winterset (1889)

Gas

• Cedar Falls (1928)
• Graettinger (1961)
• Guthrie Center (1953)
• Harlan (1954)
• Hartley (1993)
• Montezuma (1967)

Water

• Algona (1889)
• Alta (1895)
• Ames (1891)
• Alton (1894)
• Arnolds Park (1897)
• Atlantic (1876)
• Avoca (1890)
• Brooklyn (1896)
• Burlington (1878)
• Cedar Falls (1888)
• Coggon (1893)
• Cumberland (1884)
• Dayton (1895)
• Denison (1884)
• Des Moines (1871)
• Fairfield (1885)
• Farley (1897)
• Farmington (1896)
• Glidden (1901)
• Graettinger (1896)
• Greenfield (1890)
• Guthrie Center (1889)
• Harlan (1891)
• Hartley (1898)
• Hull (1896)
• Humboldt (1869)
• Ida Grove (1878)
• Indianola (1892)
• Keokuk (1877)
• Marion (1885)
• Marshalltown (1876)
• Montezuma (1893)
• Mount Pleasant (1897)
• Moville (1890)
• Muscatine (1900)
• New London (1913)
• Odebolt (1885)
• Ogden (1898)
• Onawa (1897)
• Oskaloosa (1887)
• Oxford Junction (1900)
• Pocahontas (1901)
• Rock Rapids (1909)
• Sigourney (1895)
• Spencer (1886)
• State Center (1877)
• Storm Lake (1891)
• Stuart (1890)
• Traer (1894)
• Vinton (1888)
• Webster City (1883)
• Winterset (1920)
• Woodbine (1900)
• Wyoming (1899)

Award records may be incomplete. Additional information on past awards is welcomed.