Insufficient population to establish independent relevance. Probably the 'market' would be a county or set of counties in that case. Likely within that region

Insufficient population to establish independent relevance. Probably the 'market' would be a county or set of counties in that case. Likely within that region the only monopolies (in the US anyway) would be Walmart, chains of stores like 'dollar general', and maybe tractor / farm supply services.