Jennifer - yes it is certainly possible, as Camanche, IA is an eligible area for USDA rural development financing.
Get in touch with Brian who responded to your question and he'll be able to get you on the road to determining USDA would be a possibility for you. We also do USDA financing for homes in Iowa, but I am not located in Iowa.
If you wanted to do a little research on your own first, you can go to http://eligibility.sc.egov.usda.gov/eligibility/welcomeAction.do to see if your household income is within limits (which $700/every 2 weeks certainly would be) as well as where you are looking to buy would be an eligible area, which if you go too far north from Camanche, into the Clinton area, it becomes an ineligible area.
Your income level probably will also qualify you for special down payment assistance programs - such as the Iowa Housing Authority, which can help out with down payment & closing costs. http://www.iowafinanceauthority.gov/en/other_information/ifa_programs/ is the link for those programs.