There are several active clubs in Loudoun County and in Fairfax. You might want to check out the Loudoun Amateur Radio Group, while they are a big contest club they also do other activities.
While not in Fairfax County, the Arlington Radio Public Service Club, which I belong to, website www.w4ava.org
has members from around the region, including Fairfax County, where I live and is active in RACES activities supporting the Arlington County Office of Emergency Managemment. The RACES net is held Wednesdays at 9 pm on the 146.625- W4AVA repeater, PL 107.2. All are welcome. Check out our web site and see if that appeals to you. Good luck in finding a club which you can call home. 73