Public Schools:

Virginia
Alexandria City - http://www.acps.k12.va.us/
Arlington County - http://www.arlington.k12.va.us/
Fairfax County - http://www.fcps.edu/index.shtml
Falls Church - http://www.fccps.k12.va.us/
Loudoun County - http://www.loudoun.k12.va.us/
Manassas City - http://www.manassas.k12.va.us/
Prince William County - http://www.pwcs.edu/

Maryland
Anne Arundel County - http://www.aacps.org/
Montgomery County - http://www.mcps.k12.md.us/
Prince George County - http://www1.pgcps.org/

District of Columbia
http://www.k12.dc.us/

Private Schools:

Northern Virginia
http://www.daycarevirginia.com/Local%20Private%20Schools.htm

District of Columbia
http://www.greatschools.net/schools.page?city=Washington&st=private&state=DC