Table 4.
July 2005 population estimates (U.S. Census Bureau), HUD housing damage estimates (U.S. Department of Housing and Urban Development 2006), July 2006 population estimates based on interpolated public school enrollment, and USPS-counts of active residences, Louisiana Public Health estimates (LPHI), and Census Bureau estimates, Standard Deviation and MAPD of mid-year estimates for select Louisiana parishes
| Parish | Census Bureau population estimate July 2005 | HUD estimated percent of occupied housing units with major/severe damage (%) | School based population estimate July 2006 | USPS-based population estimate July 2006 | LPHI population estimate July 2006 | Census population estimate July 2006 | Standard deviation of mid-year 2006 estimates | MAPD of mid-year 2006 estimates |
|---|---|---|---|---|---|---|---|---|
| St. Helena | 10,138 | 2.0 | 10,271 | 10,779 | 10193–12,341 | 10,759 | 329 | 2.2 |
| Tangipahoa | 106,152 | 2.3 | 109,491 | 111,033 | 95620–132,032 | 113,137 | 1,717 | 1.4 |
| Washington | 44,277 | 8.4 | 42,870 | 44,778 | 40355–48,473 | 44,750 | 783 | 1.5 |
| Calcasieu | 184,708 | 9.3 | 182,183 | 187141 | 173970–214,580 | 184,524 | 4,535 | 2.0 |
| Vermillion | 55,267 | 13.0 | 54,463 | 56,533 | 53000–64,740 | 56,021 | 1,581 | 2.2 |
| Jefferson | 451,059 | 19.5 | 375,899 | 445,673 | 394,763–484,173 | 431,361 | 27,795 | 5.6 |
| St. Tammany | 219,814 | 25.5 | 213,647 | 221,122 | 196,953–249,469 | 230,605 | 6,041 | 2.1 |
| Orleans | 452,170 | 55.9 | 107,883 | 235,961 | 182,316–219,014 | 223,388 | 50,171 | 21.9 |
| Plaquemines | 28,903 | 57.5 | 18892 | 29826 | 16006–20936 | 22,512 | 4,552 | 16.7 |
| Cameron | 9.611 | 71.8 | 7,927 | 8,427 | 5,998–8,914 | 7,792 | 349 | 3.5 |
| St. Bernard | 65,147 | 78.4 | 20682 | 38292 | 22074–28904 | 15,514 | 8,449 | 27.6 |
Note: Parishes sorted by ascending HUD estimated percent of occupied housing units with major/severe damage. School enrollment-based population estimates were interpolated using May and October public school enrollment population estimates. Because the population estimates represent the entire universe of known population estimates, the standard deviation is a population standard deviation rather than a sample standard deviation and is calculated as SQRT(1/N*∑(x i-μ)2). The MAPD was determined by calculating the mean of all four estimates for each parish and, using this as a reference point for that parish, calculating the mean absolute percent difference of all four estimates from the mean for July 2006