Of the 117 counties and parishes used in the studies -- those identified by the Federal Emergency Management Agency as eligible for disaster assistance -- only 40 lost population in the four months after the storm , and 99 percent of the losses came in the top 10 parishes and counties , comprising New Orleans and Lake Charles in Louisiana and Gulfport and Biloxi in Mississippi .
Mississippi /location/location/contains Biloxi
Louisiana /location/location/contains New Orleans
Louisiana /location/location/contains Lake Charles
Mississippi /location/location/contains Gulfport
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Mississippi
LOCATION
Biloxi
LOCATION
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Louisiana
LOCATION
New Orleans
LOCATION
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Louisiana
LOCATION
Lake Charles
LOCATION
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Mississippi
LOCATION
Gulfport
LOCATION
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