The Area Agency on Aging 1B is stepping up to keep seniors safe and healthy. Area Agency on Aging sounds very official, but in simple terms, the group helps take care of the most vulnerable members of the community. The Area Agency on Aging 1B covers most of the area. Our biggest goal is to keep seniors safe in their homes for as long theyre comfortable," said Katie Brennan, director of philanthropy for Area Agency on Aging 1B. Area Agency on Aging 1B serves a six-county region that includes Livingston, Macomb, Monroe, Oakland, St. Clair and Washtenaw counties.