Population estimates updated

Communities Count   (Seattle)

January 2012 - February 2012

The release of the 2010 Census counts revealed that our small area population estimates for 2001-2009 (created before the 2010 Census data was available) were deeply flawed. We have now replaced our old 2001-2009 population estimates series to incorporate data from the 2010 Census. Using spatial overlays, counts from the 2000 and 2010 Censuses and assuming a straight-lineĀ  trend, we calculated age by sex by year estimates for each 2000-boundary census block in King County. This smallest-possible geographic unit allows us the most flexibility in aggregating to larger areas (see New Health Reporting Areas). We are also replacing 2001-2010 age by sex by race by year estimates for the county as a whole, using bridged-race estimates from the National Center for Health Statistics.