Now you mentioned i, I am a bit surprised Smallville is prominently and consistently in Kansas? It's Smallville, Kansas. There might be others and certainly cities located vaguely within a real region, but it's definitely the first fictional town or city of D.C. in a real-world American state to come to mind.
So this gets to the weirdness of D.C geography. When Superman was first established, there was much less of a cohesive "universe," so if Siegel and Shuster wanted Superman to specifically be raised in Kansas, that's where he was from and the rest of the geography would have to work itself out.
IMO, this early slapdash approach to world-building has (over time) led to some things that just don't make sense to me as a student of urban history and urban studies:
Metropolis shouldn't be in Delaware. It doesn't make sense in terms of urbanization, given the context of an already-crowded Northeastern Corridor - Delaware simply does not have the capacity to sustain a city of 11 million people, and you wouldn't get a municipality of that size right next door to New York City (as well as D.C's other fictional cities in the area). The whole idea of Metropolis and Gotham being across the river/bay from each other has never really worked for me; you can still do Superman/Batman team-up stories no matter where they are, because Superman can fly and Batman has his own personal fighter jets.
More importantly, it doesn't make sense in terms of historic patterns of urban migration. Moving to the big city in search of the American Dream is a big part of the Clark Kent story, but historically people moving from rural to urban areas overwhelmingly go to the nearest large city, depending on how transportation networks are arranged, whether we're talking about train lines or direct flights or highways or bus routes. There is a reason we can track regional movements of black communities during the Great Migration, because who went where depended on which train lines ran through which states:
This is why I've always felt that, while Metropolis has aesthetically been associated with New York City, it logically should be Chicago. It is the biggest city in the Midwest, one very much associated with robber baron industrialists and corruption at the highest levels, and absolutely stuffed with art deco architecture for Superman to pose on top of. Up until the Tribune Company began to strip it for parts, it's also been a major newspaper town with a long tradition of muck-raking investigative journalism that would inspire a starry-eyed cub reporter like Clark. As one of the original transit hubs and the U.S' own "nature's metropolis," it is precisely the place that a Kansas farm boy would hop a train to, because all trains go to Chicago. Also, culturally I like it better that Clark Kent represents the City of Wide Shoulders whereas Bruce Wayne is the typical Tri-State Area Type-A personality.
Going back to D.C's bizarro Northeast geography, I likewise have an issue with Gotham being in New Jersey...if New York City is also supposed to be a major metropolitan area in the D.C universe. Just as Delaware would struggle to support a city of 11 million people, it would be very difficult to grow Gotham into a city of 10 million people so close to the gravity well of the Greater New York Metro Area. New Jersey is a pretty urbanized state, but its biggest cities tend to range in population from 300,000 to 100,000 - which works very well for a place like Blüdhaven, which is supposed to have something of an inferiority complex vis-a-vis Gotham - because a lot of the population tends to gravitate to NYC for work and eventually housing as well.
I've already said my piece about the lack of cultural specificity of D.C's Midwest.
As far as the West Coast goes, I've always found it a bit odd that Star City isn't where Seattle is supposed to be. Let's face it, the only place where Oliver Queen's facial hair would go unnoticed is Seattle. Also, Coast City is often depicted too far north on the map - if it's supposed to be a half-hour away from Edwards Air Force Base, it should be significantly more southern, down by Kern County and San Bernadino County, not practically up in San Francisco.
