Heartland Financial USA, Inc. (NASDAQ:HTLF) today reported net income available to common stockholders of $15.5 million, or $0.76 per diluted common share, for the quarter ended March 31, 2015, compared to $6.7 million, or $0.36 per diluted common share, for the first quarter of 2014. Return on average common equity was 13.58% and return on average assets was 0.97% for the first quarter of 2015, compared to 7.41% and 0.47%, respectively, for the same quarter in 2014.