The habitat of B. procyonis is some what unique in that B. procyonis is a common parasitic nematode of raccoons, the definitive host.  Adult worms live and reproduce in the small intestine of the raccoons.  The prevalence of infected raccoons range from 3.4% to nearly 100% of all raccoons sampled so it is safe to say that where ever a raccoon may be found so may B. procyonis.  Therefore it may also be beneficial to talk a little bit about the habitat of the raccoons. 

Raccoons are common throughout all of North America from Canada all the way to Panama.  Raccoons tend to thrive in more forested areas because they need taller structures to climb when they fell threatened.  Therefore, they tend to avoid open areas such as grass lands and marshes.  Tree and rock crevices are also preferred by raccoons as sleeping, winter and litter dens.