Below is some basic information on the population size and structure of North Korea, life expectancy, religions, etc.
Total population: 23,479,088
Population growth rate: 0,7%
Religions: mainly atheist state though it is officially stated that there are Catholics, Protestants, Buddhists, and Chondokyo ("religion of the Heavenly Way", prominent in the 1800s) groups.
Ethnic groups: almost 100% Korean. Small groups of ethnic Chinese and Japanese.
Literacy rate: 99%
Life expectancy (male): 70
Life expectancy (female): 75
HIV cases: 0
Birth rate: 14.6/1000
Infant mortality rate: 21.8/1000