Why do roaches seem to be more common in urban areas than in suburban or rural areas?
The species we have in the Bay Area are more common in urban areas, especially where dwellings or buildings adjoin. Roaches can easily travel from one dwelling to another on pipes or electrical wires or through gaps in the walls. Some species of roaches live outside but are periodic invaders of houses. Where these roaches are common, rural and suburban areas may have problems similar to urban areas.
