New York Times
ARSENALS BY COUNTY: Sample shows federal arms shipments to local police agencies.
The New York Times published this dandy interactive map
tracking the shipment of military weapons and equipment to every county in the United States. Fascinating stuff.
Check your county.
This is from a Defense Department program. Cheap to no cost. But I don't believe it includes other arms and gear provided by Homeland Security as part of terrorism programs. Randolph County got a C-23 plane, the New York Times noted.