Why do Democratic areas always come in last?

You always notice, as much as the democratic urban areas like to make fun of conservative rural areas, it's the conservative rural areas that have their sh*t together. It's always the places like Miami, Philly, Northern Virginia, etc. that come in last.

Are they simply incapable of counting accurately? Or do they intentionally keep their vote delayed so it always come down to them? Even worse, do they do it to see how many votes they need to make up and how many dead people they need to have conveniently vote Democratic?