Is President's Day a Federal & National Holiday?

Is President's day 2011 a federal / national holiday?
I need to go to the courthouse and since it's a federal building, I wonder if it will be open or closed.
I tried the number but nobody is answering it, that may indicate it is closed because of President's day. I just want to be sure.
Also, is there school on President's day 2011?

President's day 2011 is considered a federal holiday.
As such any courthouse will be closed. Same thing goes for US banks.
There are no 'national holidays' in the United States because Congress only has authority to create holidays for federal institutions.
The post office is also closed today, no mail delivery.