How many people aged 7 to 12 [for example] live in my county?
This is not a specific request but a class of requests. It involves somebody wanting estimates for a very specific age range. In this example it is 7 to 12, but it could also be 6 and under, 72 and older, or 16 to 23 (for example). The geography does not have to be a single county; it can be multiple counties or states. The Census Bureau does generate estimates by single years of age at the county level, but they do not advertise this fact and we have never found anything regarding such estimates on their web site. However, they did a special estimates tabulation for the National Center for Health Statistics (NCHS) that are county level and by single years of age. You can download these data from the NCHS web site (http://www.cdc.gov/nchs/about/major/dvs/popbridge/popbridge.htm) but this requires custom downloading and processing. The MCDC has put these data up in our data archive and data can be extracted using a custom web application titled Populations Estimates by Age. It actually
