NEW YORK--(BUSINESS WIRE)--Fitch Ratings has affirmed Rockingham County, Virginia's (the county) implied general obligation (GO) rating at 'AA'. The Rating Outlook is Stable. SECURITY The rating is based on an implied unlimited tax GO of the county. KEY RATING DRIVERS STRONG FINANCIAL PROFILE: Sustained excellence in financial management and planning has resulted in ample reserve levels. STRONG MANUFACTURING PRESENCE: The county's economic base is heavily concentrated in manufacturing. However,