USDA home loans are typically offered to borrowers with a zero-down-payment mortgage. This type of loan is mainly offered to rural and suburban homebuyers. They are specifically meant for borrowers who cannot afford to get a conventional mortgage. The United States Development Authority guarantees home loan to aid families who cannot afford to purchase a home in the urban areas of the country. The USDA usually issues direct loans for homes at a market value below the area loan limit. It is basically a program sponsored by the USDA targeted to borrows with very low income.