'State' data does not display in event listing

Event Registration 6.00.31
Event venue “State” data does not display in event listing rendering or registration page hide/show rendering.

Example:
http://sociocracyconsulting.com/event-registration/

Click on event titled
“Dynamic Self‐Governance: Become More Effective Together”
Location shows:
Washington, 20036
Should show:
Washington, DC 20036

Click on “Register” button
Click Show/Hide details link
Same as above, missing “State” data in location rendering

http://wordpress.org/extend/plugins/event-registration/