This section compares Johnson City to the 50 most populous places in Tennessee and to those entities that contain or substantially overlap with Johnson City. The current population of Johnson City Tennessee is 67200 based on our projections of the latest US Census estimates. Johnson City Tennessee People Match Any Neighborhood calculates the Match Level of one neighborhood to another using more than 200 characteristics of each. Population johnson city tn . There are 429 places in Tennessee. Explore demographics of Johnson City TN including diversity population income and community statistics. Between 2017 and 2018 the population of Johnson City TN grew from 65598 to 66037 a 0669 increase and its median household income grew from 39143 to 40786 a 42 increase. 827 low US. Population of Johnson City TN Last official estimated population of Johnson City city Carter County Tennessee state was 65813 year 2014. Population per square mile 2010. Mean prices in 2019. Famili...