Population Demographics
As of 2024 the population of Bismarck Mandan Metropolitan Statistical Area is 136,995. The population is expected to grow to 141,641 by 2029 - a growth rate of 0.67%.
The median age of Bismarck Mandan Metropolitan Statistical Area residents is 40.
The diversity index of Bismarck Mandan Metropolitan Statistical Area is 29.8, meaning that there is a 30% chance that any two people selected out of 100 residents will be of different race or ethnicity from one another.