The VA loan and the USDA loan have no down payment. The FHA loan down payment can be as low as 3.5%.
Be aware that any home you buy will also have closing costs. Closing costs are normally 2% - 5% of the price of the home.
I would be happy to answer any home buying questions that you have.
7562 Route 30
North Huntingdon, PA
Office: 724-864-2121 x 316