Bureau of the Census
http://www.census.gov/

Statistical Abstract of the United States
https://www.census.gov/en.html

American Fact Finder
http://factfinder.census.gov/faces/nav/jsf/pages/index.xhtml

State and County Quick Facts
https://www.census.gov/quickfacts/

Louisiana Quick Links
https://www.census.gov/quickfacts/

Bureau of Economic Analysis 
http://www.bea.gov/

Consumer Price Index 
http://www.bls.gov/cpi/

Producer Price Index 
http://www.bls.gov/ppi/

Louisiana Labor Market Information 
http://www.laworks.net/LaborMarketInfo/LMI_MainMenu.asp

Louisiana Department of Revenue 
http://www.rev.state.la.us/

Federal Reserve Bank of Atlanta LEARN 
https://www.frbatlanta.org/education.aspx

USAGOV 
http://www.usa.gov/

USA Counties IN Profile 
http://www.stats.indiana.edu/uspr/a/us_profile_frame.html

1990 Census Profile Data for MSAs, counties, places, tracts, zip codes 
https://www.census.gov/library/publications/1992/dec/cp-1.html

2000 Census Profiles using data from SF 3 
https://www.census.gov/library/publications/2003/comm/prodpr03-1.html