Below are the links to the boundaries and spheres of influence maps for the districts based in other counties that extend into San Bernardino County:

Riverside County Based Districts


Beaumont-Cherry Valley Water District Map http://www.bcvwd.org/
Rubidoux Community Services District Map http://www.rcsd.org/
San Gorgonio Pass Water Agency Map http://www.sgpwa.com/


Kern County Based Districts


East Kern Healthcare District Map http://www.eastkernhealthcaredistrict.org/
Indian Wells Valley Water District Map http://www.iwvwd.com/
Rand Community Water District Map