There are currently 10 WatchTower franchises in N. America, with a number of others under consideration by both WatchTower Inc. and various city and state governments. View WatchTower franchises on a map.
Each franchise has its own charter of specific responsibilities (primarily geographical) but in times of crisis, operatives from other franchises will help out. As can be seen on the map, many areas are without direct coverage. Exotic crime tends to be less common in these areas, and support for local law enforcement comes from both Fortress and on an ad-hoc basis from WatchTower (usually with a very hefty hourly fee).