NC Grange Mutual Insurance Company The NC Grange Mutual Insurance Company specializes in farm and rural property insurance and writes for businesses only in North Carolina.  Local Grange members who purchase homeowners or farm owners property insurance from NC Grange Mutual Insurance Company receive a discount on their insurance. NC Grange Mututal understands the insurance needs of farm and rural property owners.  For more information about their products, please visit NC Grange Mutual Insurance Company or call them at 1-800-394-1236 or 336-294-5336 and ask for the agent nearest you.