From the Pew Charitable Trust: Federal Disaster Goes Beyond FEMA. Hundreds of billions of dollars are spent by diverse agencies.

Update: A related matter is this comment from Larry Larson of the Assoc. of State Floodplain managers.

We need to change the terminology used to explain where federal monetary assistance came from.  I have quit using the terms “federal government” and FEMA or HUD funding.  Instead I use “federal taxpayer” money through FEMA or HUD or whoever.  *** Craig Fugate recently explained that precise difference.  This is important because everyone thinks the federal government or some agency is not them, but if we use the term federal taxpayer, they all realize that is them—they are paying and will pay more attention to the issue

Larry