
The commercial website BackgroundChecks has some good information about getting the most from the government census records. Here is a description from the site:
If you ever visited Census.gov before it was updated you’d have found the process of sifting through the plentiful information about America’s economy, places, and people incredibly time-consuming and difficult. Thankfully, the website has been updated, which has made it slightly easier to navigate. However, with so much information available, it’s still easy to miss key features or you may struggle to pinpoint the data you’re looking for.
Therefore, to help get you started and to make sure you’re getting the most out of Census.gov, we’ve put together this handy guide which will show you how to navigate the site and get the results you’re looking for.