Yup, Ohio State has a huge advantage over Iowa/Iowa State, aside from being Ohio State. Dominate recruiting in a larger state with good HS football and you field talented teams. UGA has some advantage though there are a lot of programs right across the border, and a lot of immigrants to GA are not especially UGA fans from birth obviously.
UF is in a much bigger state but has to fend off FSU and Miami, along with poachers like UGA and Auburn etc. I'm guessing Alabama and Auburn have been the most successful in state pairing from a smaller state, by a fair measure.