Population
Population means the total resident population based on data compiled and published by the United States Bureau of the Census available from the latest census or which has been upgraded by the Bureau to reflect the changes resulting from the Boundary and Annexation Survey, new incorporations and consolidations of governments pursuant to 570.4, and which reflects, where applicable, changes resulting from the Bureau's latest population determination through its estimating technique using natural changes (birth and death) and net migration, and is referable to the same point or period in time.