Fulton (20759) -- $858,522

Glenelg (21737) -- $844,814

Highland (20777) -- $837,863

West Friendship (21794) -- $806,500

Davidsonville (21035) -- $799,773

Glenwood (21738) -- $778,742

Dayton (21036) -- $733,875

Clarksville (21029) -- $668,797

Phoenix (21131) -- $657,663

Woodbine (21797) -- $643,458

And the 10 least expensive ZIP codes by average sales price:

Baltimore (21205) -- $68,187

Baltimore (21223) -- $89,813

Baltimore (21213) -- $92,299

Baltimore (21216) -- $93,335

Baltimore (21215) -- $122,009

Baltimore (21217) -- $136,255

Brooklyn (21225) -- $165,004

Baltimore (21229) -- $167,434

Baltimore (21206) -- $177,406

Dundalk (21222) -- $180,157

Kudos to you if you made any correct guesses. I'll put up some other stats later that didn't make it into my ZIPs-and-neighborhoods story last Sunday.

UPDATE: Want to see where all these communities are? Click HERE for a nifty Google Maps mashup made by a clever Wonk reader.