40 CFR § 1800.401
Decennial census data
June 9, 2020
The average populations in the 2010 decennial census for each Gulf Coast State, rounded to the nearest whole number, are:
(a) For the Alabama Coastal Counties, 297,629 persons;
(b) For the Florida Coastal Counties, 252,459 persons;
(c) For the Louisiana Coastal Parishes, 133,633 persons;
(d) For the Mississippi Coastal Counties,123,567 persons; and
(e) For the Texas Coastal Counties, 147,845 persons.