Population Demographics
As of 2026 the population of Jefferson City is 626. The population is expected to grow to 660 by 2031 - a growth rate of 1.06%.
The median age of Jefferson City residents is 49.
The diversity index of Jefferson City is 33.7, meaning that there is a 34% chance that any two people selected out of 100 residents will be of different race or ethnicity from one another.