From the Missouri State Highway Patrol:

The statistics reflected on the following reports have been extracted from methamphetamine laboratory seizure incidents entered into the National Clandestine Laboratory Seizure System. Seizures entered into the system are classified in one of three ways: Operational Laboratories, Chemical/Equipment/Glassware seizures, and Dumpsites. Data reflected in map format are cumulative totals of the three types of seizure classifications occurring in each separate county.

Missouri meth incidents by county, January through June 2013:

There appears to be a “meth belt” in Missouri.

Missouri meth incidents by county, 2012:

Anyone think there’s a direct correlation with banjo density? Just asking.

Currently there’s only one state [pdf] keeping us from being number one in 2013.