Township of Denville This was a great group I joined. This is the Denville Beautification Committee. This is one of the groups that helps keep our Downtown decorated with plants and garbage free. Denville Police's Impala. Love it! Denville Volunteer Fire Department Denville's safe, walkable downtown makes it self sustaining. But Denville is also a bedroom community with high-quality public transportation. Residents drive less, exercise more, and live longer. © 2015 iDenville, LLC. All rights reserved.