I agree with the previous two posts. You either have a GFCI or a breaker that is tripped. My bet is on a GFCI though. Those are the household outlets that have a test and reset button on them. There is probably more than one and one of them might be tripped.Look in hte bathroom, outside storage, and maybe at the external outlet under the awning. Press the test button and make sure it snaps the reset button out. If nothing happens press the reset button. If it resets then press the test button again to verify that it works. Make sure to press the reset button in firmly when your done testing.
For the breakers I would flip each breaker off. Then while it's off, push down extra hard toward the off position. If it was tripped it has to go further into the off position to reset it. Then flip it back on.
