* Updates for this datas series are not available starting in 2014 because the Census Bureau has discontinued collection for all 3-year ACS estimates. No new 3-year estimates will be produced. However, ACS 3-year estimates published prior to 2014 will remain available to data users.
Data series considered of low reliability overall due to sampling error; use with great caution and see note flags on individual data points.
Years Available: 2005-2007, 2006-2008, 2007-2009, 2008-2010, 2009-2011, 2010-2012, 2011-2013
Permanent Link: http://data.sagepub.com/sagestats/6910
General Notes: *Median value gives the value for the "average" county for this metric, the 50th percentile of all counties with a population of 20,000 or greater. Smaller counties are not included in ACS three-year estimates; please consult American FactFinder for the five-year estimates to see all counties. A # symbol indicates the following: Data value is considered of medium reliability due to sampling error; use with caution. Coefficient of variation is between 15 and 30 based on 90% confidence interval. !Data value is considered of low reliability due to sampling error; use with great caution. Coefficient of variation is over 30 based on 90% confidence interval.