The plot thickens. Or maybe it… thinnens. I don’t know. The point is that the folks at the San Diego Chamber of Commerce have gotten to the bottom of our recent mystery about why their population data differed so much from that of the Census Bureau. Yet their answer has only raised another question.
The Chamber’s Rachel Laing elaborates:
The mystery of the difference in the migration data on the Chamber’s Web site and the U.S. Census bureau appears to have been solved. Kelly Cunningham, who headed the ERB for years before leaving in early 2005, helped us sort all of this out.
To sum it up, the Chamber uses California Department of Finance data,
because the state agency is assumed to have better ability to track and
estimate the state’s population changes. They also release their
estimates in a more timely fashion — months ahead of the Census Bureau.
SANDAG also uses DoF data over the Census Bureau data in its planning.