Looking for a miracle to add more years to your life? You might want to start with a U-Haul. If you happen to live in the high country of central Colorado, your life expectancy numbers are looking pretty good. But America is in an era of great divisions, and the number of years you can expect to live marks perhaps the most important and dangerous divide. According to the latest numbers, US life expectancy varies by more than 20 years from county to county.