WRNJ is based in Hackettstown and serves Western Morris, Southern Sussex and all of Warren County. Music Format: Pop Adult 60's thru Today. Audience target 25 , estimated at 40,000. Local news, weather & traffic. Local talk shows featuring medical, educational, political, religious, business and pop culture subject matter. To our listeners, our goal is to inform, educate and entertain. To our advertisers, our goal is to increase your sales, improve your profits and build your company's image & reputation.