I downloaded a Shapefile from the Census on the 113th congress broken down by district nationally:
Within the .dbf file, there were no good indicators of how the districts are normally laid out (Eg. PA-15); each state was assigned a number and then a congressional district, so I figured out what the state codes meant (based on other census shapefiles and how many districts were in each state and made a new column that I'm 99.9% sure is right based on the information given. The first four rows are what came with the shapefile and the last highlighted row is what I added:
And here's what it looks like when I run a query for the districts that I've defined as Pennsylvania:
Pretty sure that's not what Pennsylvania looks like! Can't figure it out -- because, again, I'm really sure that I defined each state's number as the proper actual state. Any ideas as to what might be wrong?
And sorry about all the links to pictures -- since this is my first post, I'm not allowed to post any images or more than two links yet.