Northwest Center takes maternity clothes - http://www.northwestcenter.net/

As a previous poster mentioned, they are a pro-life organization.

You could call N St Village and see if they'd take them. Another good option would be A Wider Circle, but again I'd call.

I've found giving stuff away on Facebook to be pretty effective as well.

My only caution is to research a little so you don't end up supporting an anti-choice organization.

same here

I'm in DC and wondering where to donate maternity clothes. TIA.