Which age group had the highest mortality rate in NY? Table 1. Age-Specific USA Population and State Mortality Rates (per person). Age Population 0-4 18,456,000 5-24 72,053,000 25-34 43,675,000 35-44 35,264,000 45-54 24,163,000 55-64 21,830,000 65-74 17,897,000 75+ 12,470,000 New York 0.00272 0.00066 0.00192 0.00321 0.00540 0.01212 0.02793 0.08753 Arizona 0.00269 0.00076 0.00146 0.00224 0.00484 0.01102 0.02408 0.07359