ACS Data Users Group

I'm looking for a list or data source for counties located within a PUMA. I have a list of the name of the PUMAs, and this often contains the counties, but not always. an example:

GEOID PUMA BASENAME NAME
2800500 500 Three Rivers Region––Lee, Pontotoc & Union Counties––Tupelo City Three Rivers Region––Lee, Pontotoc & Union Counties––Tupelo City PUMA
2800600 600 Golden Triangle Region––Starkville, Columbus & West Point Cities Golden Triangle Region––Starkville, Columbus & West Point Cities PUMA
2800700 700 North Central Region North Central Region PUMA

Here, clearly PUMA 500 contains Lee, Pontiac, & Union Counties, but it's impossible to find out from this description which counties are in PUMA 600, The Golden Triangle Region, or PUMA 700, the North Central Region.

Any help is greatly appreciated.

Maps of Mississippi PUMAs are available here:

www.census.gov/.../st28_ms.html

This will work. Thanks for pointing it out

Counties are not perfectly nested within PUMAs, unfortunatley. PUMAs can (and do!) intersect counties quite frequently. PUMAs are designed to have a minimum of 100,000 people whereas counties vary greatly in number of people. The best source I've found as far as some kind of list is from the GeoCorr function on the Missouri State Data Center site: mcdc.missouri.edu/.../geocorr14.html

I second Diana -- MCDC is a terrific resource for everything-to-everything conversion.

The Minnesota Population Center has both delineation files and map boundaries. The 2000 PUMAs were based upon tracts split by place, but the ones from 2012 are based upon 2010 tracts.