Hey guys, I know this post is a bit old so you probably already figured this out but I thought I would post for anybody new that may be interested in Greenville, NC. I copied and pasted this from the Greenville City Codes:
Animals 12-29
(B) Up to four chickens, ducks, pigeons, doves or other fowl may be kept on a single lot or tract within the city so long as the fowl do not, by reason of noise, odor or attraction of flies, become a nuisance or health hazard.
(C) Between five and 15 chickens, ducks, pigeons, doves or other fowl may be kept on any single lot or tract in the city upon the following conditions.
(1) The fowl will not be permitted to run at large, and must be maintained in a chicken house or coop of suitable construction and size for the number of fowl maintained in it.
(2) The owner or occupant of any premises where such houses or coops are maintained shall thoroughly clean the same of all manure and other wastes at least twice each week. All waste material removed from houses or coops shall be hauled off of the site or disposed of on-site in such a way that it does not cause odor or attract flies.
(3) No chicken house or coop may be located any nearer than 175 feet from any dwelling, hospital, eating establishment or school.
Just for clarification the 1,2 and 3 bullets only apply to keeping between 5 and 15 chickens.
It does not specifically address more than 15 birds (total; not 15 chickens, 15 ducks, 15 turkeys, etc). but at that point you probably have reached a presumptive limit to be considered a commercial operation and would fall under stricter guidelines.
So yay! We can have chickens! I'm hoping to build a coup soon.