A lot of Biden signs in my father’s suburban neighborhood also. It used to be a Republican area.
Some neighborhoods shift over time. As people move out from the city, inner suburbs tend to become more liberal. It’s a definite pattern. Our county used to be solidly R and now we fight for scraps. It’s tough.
I traveled through a black section of Portsmouth, VA recently and saw several Trump flags. There’s a shift under way in many demographic sectors.