This page provides data and maps showing the pre-disaster
characteristics of the populations that appear to have been most
directly affected by Hurricanes Katrina and Rita.
CIESIN has used Census 2000 block geography and Summary File 1 attribute data to generate raster surfaces of 24 demographic variables for the states most affected by Katrina and Rita (Alabama, Louisiana, Mississippi, and Texas) at a resolution of 30 arc-seconds. Detailed grids of the same variables are available for the New Orleans and Houston metropolitan statistical areas at a resolution of 7.5 arc-seconds.
CIESIN has also used Census 2000 block group geography and Summary File 3 attribute data to generate raster surfaces of 16 additional demographic variables for Alabama, Louisiana, and Mississippi at a resolution of 30 arc-seconds. These additional variables include income, poverty status, education, and housing age. Detailed grids of the same variables are available for the New Orleans metropolitan statistical areas at a resolution of 7.5 arc-seconds.
These grids are preliminary [alpha version] data. Please notify us if you find any errors or omissions.
| Files available: |
| Product |
Download |
Readme |
| A sample map of population, race, and age for New Orleans. |
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| A sample map of population, race, and age for Houston. |
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| The 30 arc-second (approximately 1 km resolution) Summary File 1 grids for Alabama, Louisiana, Mississippi, and Texas are available as a zipped ArcInfo workspace |
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| The 7.5 arc-second (approximately 250 meter resolution) Summary File 1 grids for the New Orleans metropolitan statistical area are available as a zipped ArcInfo workspace. |
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| The 7.5 arc-second (approximately 250 meter resolution) Summary File 1 grids for the Houston metropolitan statistical area are available as a zipped ArcInfo workspace. |
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| A sample map of hazard risks from the Natural Disaster Hotspots project. |
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| The 30 arc-second (approximately 1 km resolution) Summary File 3 grids for Alabama, Louisiana, and Mississippi are available as a zipped ArcInfo workspace. |
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| The 7.5 arc-second (approximately 250 meter resolution) Summary File 3 grids for the New Orleans metropolitan statistical area are available as a zipped ArcInfo workspace. |
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| The gridded variables from Summary File 1 are: |
| POPULATION |
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| AGE |
- Population under age 1
- Population ages 1 to 4
- Population ages 5 to 17
- Population ages 18 to 24
- Population ages 25 to 64
- Population ages 65 to 79
- Population age 80 and older
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| RACE AND ETHNICITY |
- White alone
- Black or African American alone
- American Indian and Alaska Native alone
- Asian alone
- Native Hawaiian and Other Pacific Islander alone
- Hispanic
- Non-Hispanic White
- Non-Hispanic Black
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| HOUSEHOLDS |
- Households
- Population in households
- Female headed households with related children under 18
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| HOUSING |
- Housing units
- Occupied housing units
- Owner occupied housing units
- Vacant housing units, for seasonal, recreational or occasional use
- One-person housing units
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| AREA |
- Area in square kilometers
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| The gridded variables from Summary File 3 are: |
| POPULATION TOTALS |
- Total population
- Population age 25 and older
- Population for whom the poverty level is determined
- Number of households
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| INCOME / POVERTY |
- Population living below 50% of the poverty level
- Population living below the poverty level
- Population living below 200% of the poverty level
- Aggregate household income in 1999
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| EDUCATION |
- Population for whom a high school degree or less is the maximum level of educational attainment
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| HOUSING |
- Housing units
- Occupied housing units
- Occupied housing units without a vehicle
- Housing units built 1990 - 2000
- Housing units built 1970 - 1989
- Housing units built 1950 - 1969
- Housing units built before 1950
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