CEDAR RAPIDS, Iowa, May 7, 2015 /PRNewswire/ -- The Board of Directors of Alliant Energy's Iowa utility, Interstate Power and Light Company (IPL), has declared dividends for its preferred stock shareowners of record on May 29, 2015. The dividends, which are payable on June 15, 2015, are as follows:

$0.31875 per share on the 5.1% Series D Cumulative Preferred Stock

About Alliant Energy - IPL

Alliant Energy Corporation's Iowa and Minnesota utility subsidiary, Interstate Power and Light Company (IPL), utilizes the trade name of Alliant Energy. The Iowa and Minnesota utility is based in Cedar Rapids, Iowa, and provides electric service to 530,000 customers and natural gas service to 235,000 customers in more than 700 communities. The employees of Alliant Energy focus on delivering the energy and exceptional service their customers and communities expect - safely, reliably, and affordably. Visit alliantenergy.com or call 1-800-ALLIANT (800-255-4268) for more information. Alliant Energy Corporation is traded on the New York Stock Exchange under the symbol LNT.

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SOURCE Alliant Energy Corporation