We are going to ask which counties had populations greater than 70,000 people in 1990. Notice that there are several counties that now turned yellow, highlighted. These are the counties that match your query. Try a query to see how many counties have a population less than 1,000. We can query any of the fields that are within the demographics theme.
Lets look for the counties that have more men than women.
Click New set. Open the Demographic Data table by clicking on the table button at the top.