New Orleans a 'ghost town' after thousands flee Gustav: mayor August 31, 2008. "Expert: N.O. population at 273,000". WWL-TV. August 7, 2007. http://www.wwltv.com/local/stories/wwl080707jbpopulation.104a120f.html. Retrieved 2007-08-14.  "Relocation". Connecting U.S. Cities. May 3, 2007.  "Annual Estimates of the Resident Population for the United States, Regions, States, and Puerto Rico: April 1, 2000 to July 1, 2008". United States Census Bureau. Retrieved 2009-02-01.  "Elevations and Distances in the United States". U.S Geological Survey. April 29, 2005. Retrieved November 6 2006.  Unknown parameter |dateformat= ignored (help); Check date values in: |access-date= (help)