Another vote for Takoma Park!
To give you a sense of the area...We live on a road that has a country-ish vibe. Very slow-paced, our backyard is *literally* the woods. We live next to a Waldorf-inspired homeschooling family (and we do Waldorf-inspired homeschooling with my youngest). There are two elementary schools within walking distance (one is for younger elementary, the other is grade 3 and up, though the younger elementary is under recontruction this year). I have heard, though do not know from personal experience, that the schools are quite good in Montgomery County.
We have chickens, as do 3 other families on our street! We frequently see deer, foxes, owls and other woodland animals outside our house. We have a garden (about 10x25ft). Our house is a 2br single-family home that I found on Craigslist for $1900. It's possible to get places for less if you have the time to look and wait for the right place. Our backyard is HUGE. We live near two sets of hiking/biking trails, each accessed a block away from our house. There is also a creek a block away and we frequently go and sit on the rocks in the middle of it or on the banks for an afternoon.
The neighborhood definitely feels like a community. We take care of each other's pets, share bikes, drop off baked goods for each other, watch each other's children, have neighborhood potlucks. It's a place about connecting with other families and I've found it easier to make friends here than anywhere else I've ever lived.
We can walk to the co-op in about 10-15 minutes and there is a Whole Foods a 5 minute drive away. There is a year-round farmer's market in Old Takoma, about a 20-25 minute walk/5 min. drive. There is a raw milk/grassfed meat drop, several CSA drop options, and some cool shops. We have access to two library systems (Takoma - which is independent, and Montgomery County). There are lots of natural healing centers nearby too.
DH and I sometimes comment that we have easier access to nature than when we lived in Montana or Oregon! We spend quite a bit of our lives in nature now!
DH's commute to downtown DC is about 25 minute walk to the Metro (there are lots of neighborhoods closer than our house), and a 20 min. Metro ride. He'll sometimes take the bus, which shaves off 15+ minutes off of that. And sometimes I'll drive the 5 minutes to drop him off if we're going to be in the car already. We originally didn't consider living out here because of the commute, but now are so happy we did!
Also, there are lots of neighborhoods in Silver Spring that would fit the bill. We're on the border ourselves, so even a few blocks over it would likely be the same as what I described above.
Feel free to ask me any questions! Wishing you an easy transition!