Wait ,I am confused it is my understanding ( and I could be wrong but it is my understanding that they (the government purposely try to make the districts fairly equal in terms of population. In other words, it has been my understanding that if there are say a million people in a state ( for round numbers sake and say 10 districts ( I know those numbers are different than real numbers, but just for the sake of having round numbers to work with in that case the districts would try to be arranged so that ( roughly) 100k people would live in each district .
Cites are different than in the country the lifestyle is different and we would not want the cities pushing to control rural areas.
An example of this idea is that there are people in rural areas who have literally voted down businesses coming in and loser zoning restrictions because we ( I happen to live in a rural area) like it this way ( although we are not stupid that does come with drawbacks.