Best of luck on your move! As someone who has experience with MCPS, I would suggest thinking more about the high schools that the house is zoned for, rather than the elementary school. Elementary and middle schools are very important (they provide basic foundation for the future), but high school is easily the most important. The best schools in MCPS seem to be the W schools (Winston Churchill, Wootton, Walt Whitman, Walter Johnson), Poolesville (mainly because of it being a whole-school magnet), Quince Orchard (debatable), and B-CC. So you're definitely doing yourself a favor by looking in the Bethesda area. If you can't find anything good there, I'd say look around Potomac (and North Potomac), Rockville (RM & Wootton, though most Wootton kids are from NP), and some parts of Gaithersburg/Montgomery Village.