Conversation so far:
what is the population of the state of arizona
The most recent population estimates released by the US Census put Arizona's population at 6,828,065 in 2015.
is the population of Arizona growing
New population figures for the year ending July 1, 2006, indicate that Arizona is the fastest growing state in the United States, with 3.6% population growth since 2005.
where is the majority of people located in Arizona
The center of population of Arizona is located in Maricopa County, which contains over 61% of Arizona's population.
what cities are in Arizona's Maricopa County
Phoenix, Scottsdale, Mesa, Tempe and Glendale are located in Maricopa County

Question: how many live in the county seat
Self-contained rewrite: how many people  live in Phoenix Arizona