There is also the Montgomery County Aquatic Center (MAC) on the corner of Nicholson Lane and Old Georgetown that is an excellent Park and Planning facility and well within your radius of 5-miles. Hope this information provides greater flexibility by expanding your search options. There are numerous condos along the Tuckerman Lane area that would be an easy walk or bike ride to the MAC.

The Promenade is at 5225 Pooks Hill Road, about 3 miles from Democracy Blvd. (By the way, the zip code would not be 20892). It's a co-op, and has both an indoor and outdoor pool.