How many DHS employees are there?

About 230,000.

There are about 230,000 employees working for the U.S. Department of Homeland Security (DHS) as of 2009. This is according to the Budget in Brief for FY 2011 published by the DHS in 2010. Of all DHS organizations, the U.S. Customs and Border Protection has the most number of employees with 58,575.