Social Explorer application is not quite ready for this screen size. Please head to your nearest desktop or tablet device. Visit Homepage
Basic plan
Create Account
Data Dictionary: ACS 2010 (5-Year Estimates) Comparability Data
you are here: choose a survey survey data set table variable details
Data Source: U.S. Census Bureau
Universe: Population 1 year and Over in the United States
Variable Details
B07002. Median Age by Geographical Mobility in the Past Year for Current Residence in the United States
Universe: Population 1 year and Over in the United States
B07002004 Median age -- Moved from different county within same state
Percent base:
None - percentages not computed
Aggregation method:
None -- No totals are displayed for this variable when multiple geographies are selected
Relevant Documentation:
Excerpt from: Social Explorer; U.S. Census Bureau; American Community Survey 2006-2010 Summary File: Technical Documentation.
  ACS 2010 5-Year Summary File: Technical Documentation -> Appendix A. Supplemental Documentation -> Subject Definitions -> Population Variables -> Age -> Median Age
Median Age
The median age is the age that divides the population into two equal-size groups. Half of the population is older than the median age and half is younger. Median age is based on a standard distribution of the population by single years of age and is shown to the nearest tenth of a year. (See the sections on "Standard Distributions" and "Medians" under "Derived Measures.")

Excerpt from: Social Explorer; U.S. Census Bureau; American Community Survey 2006-2010 Summary File: Technical Documentation.
  ACS 2010 5-Year Summary File: Technical Documentation -> Appendix A. Supplemental Documentation -> Subject Definitions -> Population Variables -> Residence 1 Year Ago -> Residence-1-Year-Ago-based Geography
Residence-1-Year-Ago-based Geography
The characteristics of movers may be shown using either current residence-based or previous residence-based geography. If you are interested in the number and characteristics of movers living in a specific area, you should use the standard (residence-based) tables. If you are interested in the number and characteristics of movers who previous residence was in a specific area, you should use the residence-1-year-ago-based tables. Because residence-1-year-ago information for movers cannot always be specified below the place level, the previous residence-based tables are presented only for selected geographic areas.

Residence 1 year ago is used to assess the residential stability and the effects of migration in both urban and rural areas. This item provides information on the mobility of our population. Knowing the number and characteristics of movers is essential for federal programs dealing with employment, housing, education, and the elderly. The U.S. Department of Veterans Affairs develops its mandated projection of the need for hospitals and other veteran benefitsfor each state with migration data about veterans. The Census Bureau develops state age and sex estimates and small-area population projections based on data about residence 1 year ago.