Another question: Why is the FIPS code for this county the same for Denver? I of course filter via the FIPS code and I'll hear on occasion an emergency broadcast that relates to the Denver or the Boulder area, etc. Kinda stupid in my opinion. I don't want to be bothered with that traffic out of my area is the thing.
SAME/FIPS codes are unique for each county. Denver is 008031, Boulder is 008013, and Larimer is 008069.
The reason you would hear an alert for Denver or Boulder if you have a SAME location code programmed is if the alert being sent out covers multiple counties that include Denver or Boulder. A lot of alerts are drawn as polygons on a map these days instead of by individual counties, so it is possible for warnings areas to cross county lines that will then alert multiple counties at once.
It does not help that the system lacks granularity beyond counties, so it will alert countywide even if it the alert area skims a small portion of the county. There are some improvements being made starting this year to add
Partial County Alerting to the system, but Colorado has not seen any changes yet.