This part does not apply to any county having a population, according to the 2000 federal census or any subsequent federal census, of: 
 not less than  nor more than 
 7,600  7,700 
 7,900  7,970 
 11,300 11,368 
 11,700 11,800 
 12,369 12,450 
 16,500 16,575 
 17,900 18,000 
 22,200 22,300 
 25,450 25,550 
 29,400 29,450 
 31,100 31,200 
 32,300 32,500 
 34,800 34,900 
 39,900 40,000 
 43,100 43,200