Here is the fifth state, Connecticut! Yea yea he hasn't really made a appearance in the story yet (that's why he's giving me the look...) And no, he's not tan, he has the exact same skin tone as Deli (it's because of the dark colors of hair and shirt). Well, I hope you guys enjoy "Nutmeg" here!
Is this like hetalia US version?
Yep. since these are not official real characters, the fans can have a lot of fun with them ^^
And what if the "state" characters would later have children named after the counties... that would be confusing.
Well, the counties wouldn't because there isn't really a "county government." (though a county in Alabama, during the Civil War, left Alabama but it was the people who did so, not the "county government.") The states are like the nations because they can fend on their own w/o America's influence (Texas (10 years sovereign), Vermont (14 years sovereign), and the Confederacy (exist a little over 4 years) were prime examples of this).
True, having the counties can be confusing (plus they'll practically out number the nations) but you at least have to have a "government" in order to be a "personification" (I'm not sure why Sealand (<--Least favorite character) exists in the show but France did share a good deal "how" they work in season 5 Beautiful World).
Hetalia is a strange and yet confusing universe but it has a amusing charm.