Population Demographics
As of 2026 the population of Bertha, MN is 604. The population is expected to grow to 626 by 2031 - a growth rate of 0.72%.
The median age of Bertha, MN residents is 40.
The diversity index of Bertha, MN is 13.9, meaning that there is a 14% chance that any two people selected out of 100 residents will be of different race or ethnicity from one another.

