new-jersey
New Jersey is part of the Northeast region
Sean McGinnis is New Jersey's main Public Lab organizer. He also works closely with the newly formed (2013) Philadelphia group.
Current projects include infrared imaging with the Ironbound Community Corporation. Read more on http://publiclab.org/wiki/newark
An early regional project was Grassroots Newark, organized by Jen Hudon in 2011, which focused on development and community issues on both sides of the Passaic River:
http://grassrootsnewark.wordpress.com/.