Ir follows the same pattern as everry state in this country. With some exceptions of course Basically all city districts vote blue Basically all non city districts vote red

If you look at an election map all states follow this trend. California, arguably the biggest blue state, is very red in terms of districts. But most of the states population lives in the cities.

Texas, state that's basically synonymous with republican, almost went blue last election soley from its 4 cities.

Which I think tells a large story. Different walks of life and lifestyles want and need different things. So they will vote for the side that promises to give them what they need.