Iowa foreclosure activity declined 0.1 percent to 2.1 percent of all outstanding home loans for the year ending Sept. 30, real estate analytics firm CoreLogic Inc. said today. The state did not land within the company's best or worst states for foreclosures. Lenders completed 3,380 Iowa foreclosures over the time period, CoreLogic said in a news release. Nationally, 3.3 percent of mortgages had been foreclosed, accounting for 763,589 properties that had been sold at sheriff's auction and purchased by a third party or the original lender. According to CoreLogic, there were 57,000 completed foreclosures last month in the United States, down from 59,000 in August and 83,000 in September 2011. Prior to the decline in the housing market in 2007, completed foreclosures averaged 21,000 per month between 2000 and 2006. Since the financial crisis began in September 2008, there have been approximately 3.9 million completed foreclosures across the country, CoreLogic said.