what county is bartlett il in?
Homefacts City Report. Bartlett is located in Cook County, IL. The population is 41,459. There are 10 public schools in Bartlett with an average Homefacts rating of A-. The total crime rate for Bartlett is very low, and there are 19 registered sex offenders residing in the city. Unemployment in Bartlett is moderate and the median home sales price is $245,000.