Yes. I read in the paper that was the average response time for Lake County and I also heard it on an ILEA pod cast.
I have had this tested real world more times than I care to go into. It takes a long time. That's why when they do get there quick people say - with WIDE EYES - "Wow, you got here quick!?"
I hope my neighbors would look out for my stuff just as I would look out for theirs.
When my neighbor ran over herself with her truck (long story), the police and paramedics were on-scene in four minutes.