Median Age

What is the indicator?

The estimated median age gives an idea of the age of a population as a whole: a county with a large number of elderly residents will have a high median age, while a county with a high birth rate will have a lower median age.

 

What does the data say? Are there any notable trends?

 

Median Age

 Median Age 
Estimate (years)Margin of Error
200530.60.3
200628.70.3
200728.20.3
200828.10.3
200927.10.4
201028.80.9
201128.70.4
201229.20.3
201329.50.2
201429.70.2
201529.70.2

 

Champaign County’s estimated median age has varied over the last decade, but has always stayed between 27 and 31. In both 2014 and 2015, the estimated median age was 29.7. This is younger than the estimated median ages of the United States (2014: 37.7 (+/-0.1) and 2015: 37.8 (+/-0.1)) and Illinois (2014: 37.5 (+/-0.2) and 2015: 36.4 (+/-0.1)); Champaign County’s figure is likely impacted to some degree by the large student population associated with the University of Illinois.

 

Why is this important?/Why did we include it in our set of indicators?

The estimated median age does  not provide a significant amount of detail, and it does not provide any information on why the estimated median age is what it is. However, when placed in the context of other pieces of data and other indicators, it is a valuable starting point in understanding county demographics.

 

Where did we get the data, and how often is it released?

Estimated median age data was sourced from the U.S. Census Bureau’s American Community Survey 1-Year Estimates, which are released annually.

As with any datasets that are estimates rather than exact counts, it is important to take into account the margins of error (listed in the column beside each figure) when drawing conclusions from the data.

 

Sources: U.S. Census Bureau; American Community Survey, 2015 American Community Survey 1-Year Estimates, Table S0101; generated by CCRPC staff; using American FactFinder; <http://factfinder2.census.gov>; (19 September 2016).; U.S. Census Bureau; American Community Survey, 2014 American Community Survey 1-Year Estimates, Table S0101; generated by CCRPC staff; using American FactFinder; <http://factfinder2.census.gov>; (16 March 2016).; U.S. Census Bureau; American Community Survey, 2013 American Community Survey 1-Year Estimates, Table S0101; generated by CCRPC staff; using American FactFinder; <http://factfinder2.census.gov>; (16 March 2016).; U.S. Census Bureau; American Community Survey, 2012 American Community Survey 1-Year Estimates, Table S0101; generated by CCRPC staff; using American FactFinder; <http://factfinder2.census.gov>; (16 March 2016).; U.S. Census Bureau; American Community Survey, 2011 American Community Survey 1-Year Estimates, Table S0101; generated by CCRPC staff; using American FactFinder; <http://factfinder2.census.gov>; (16 March 2016).; U.S. Census Bureau; American Community Survey, 2010 American Community Survey 1-Year Estimates, Table S0101; generated by CCRPC staff; using American FactFinder; <http://factfinder2.census.gov>; (16 March 2016).; U.S. Census Bureau; American Community Survey, 2009 American Community Survey 1-Year Estimates, Table S0101; generated by CCRPC staff; using American FactFinder; <http://factfinder2.census.gov>; (16 March 2016).; U.S. Census Bureau; American Community Survey, 2008 American Community Survey 1-Year Estimates, Table S0101; generated by CCRPC staff; using American FactFinder; <http://factfinder2.census.gov>; (16 March 2016).; U.S. Census Bureau; American Community Survey, 2007 American Community Survey 1-Year Estimates, Table S0101; generated by CCRPC staff; using American FactFinder; <http://factfinder2.census.gov>; (16 March 2016).; U.S. Census Bureau; American Community Survey, 2006 American Community Survey 1-Year Estimates, Table S0101; generated by CCRPC staff; using American FactFinder; <http://factfinder2.census.gov>; (16 March 2016).; U.S. Census Bureau; American Community Survey, 2005 American Community Survey 1-Year Estimates, Table S0101; generated by CCRPC staff; using American FactFinder; <http://factfinder2.census.gov>; (16 March 2016).