Iowa-chartered banks reported $64.3 billion in active loans on their books at year-end 2019, up  3.7% from the prior year, according to results released Tuesday by the Federal Deposit Insurance Corp. End-of-year net income for the Iowa banking industry was $1.18 billion on Dec. 31, 2019, an 8.3% increase from year-end 2018, and total assets were $91.7 billion. Return on assets, another indicator of overall bank performance, increased to 1.33%, compared with 1.28% at the end of fourth-quarter 2018. The number of FDIC-insured institutions in Iowa reporting, 273, was 15 fewer than in 2018. Nationally, almost all major loan categories reported quarterly increases, except for the commercial and industrial loan portfolio, which reported the first quarterly decline since fourth-quarter 2016. On an annual basis, the commercial and industrial loan portfolio grew at its lowest rate since 2010. Loan growth at community banks remained strong, with total loans rising by 5.5% from a year ago. Struggles in the agriculture sector continued in the fourth quarter with modest deterioration in agriculture loan portfolios.