Could democracy be adjusted to function in a country spread over more then 1000 miles?

The correct answer to this open question is the following.

Although you did not provide any further reference, context, or time in history, we can answer in general terms.

Yes, Democracy can be adjusted to function in a country spread over more than 1000 miles if the correct principles are followed in all the territory. This means that democratic leaders have to establish the correct legislation to allow people to openly express their opinions in an organized way and to participate in elections to vote for their representatives. The country must establish the kinds of clear laws with rights and obligations under a government whose first and foremost interest is to serve the citizens.