Lets see all of these are paid services, number people in immediate area, aprox number of 911 calls, some of theses units back up other services in area as well:
600 people 18 calls 1 ambulance 24/7 ALS (hospital 20 minutes from station )
2000 people 345 calls 1 ambulance 24/7 ALS ( hospital 30 minutes from station )
10000 people 1500 calls 3 ambulances 24/7 ALS ( hospital 5 minutes from station )
2400 people 68 calls 1 ambulance 24/7 ALS ( hospital 2 minutes from station )
6000 people 700 calls 1 ambulance sometimes ALS ( hospital 90 miles from station, primary for over 2000 square miles, nearest back up an hour away )
Just a few basic rural stats.