Rural Energy Communities Development Act of 2010 - Authorizes the Secretary of Agriculture (USDA) to make water and waste facility loans to an eligible city, town, or incorporated area with a population of less than 20,000 that has, from January 1999 through December 2009, experienced energy sector job growth of not less than 20%.
Makes such loans available for: (1) essential community facilities, including water conservation, waste disposal facilities, transportation facilities, and affordable housing; (2) land acquisition; (3) staff; and (4) comprehensive community or housing plan updates.
Prohibits the Secretary from making or entering into a loan commitment after September 30, 2012.
Directs the Secretary to waive income limitations for FY2011-FY2016 for certain: (1) rural housing loans, including Doug Bereuter single-family housing loan guarantees; (2) low- and moderate-income rural housing loans; and (3) multifamily rural rental housing loan guarantees.