Population Demographics
As of 2025 the population of Halliday is 233. The population is expected to shrink to 230 by 2030 - a growth rate of -0.26%.
The median age of Halliday residents is 38.
The diversity index of Halliday is 35.1, meaning that there is a 35% chance that any two people selected out of 100 residents will be of different race or ethnicity from one another.