How many people live in the Idaho Falls, ID area?
Updated Mar. 4, 2026Refreshed annually
In 2024 there were 171,200 people in the Idaho Falls, ID area. That makes the Idaho Falls, ID metropolitan statistical area the 257th-most populous metro area in the US. It is home to 0.05% of the nation's population.
171K
population of Idaho Falls, ID area (2024)
0.05%
Idaho Falls, ID area share of US population (2024)
Between 2010 and 2024, the population of the Idaho Falls, ID area increased from 133,900 to 171,200—a 27.9% increase. During that same period, the US population grew 9.9%.
About 171,200 people lived in the Idaho Falls, ID area in 2024.
Population estimates of the Idaho Falls, ID Metro Area, 2010–2024
What are the age demographics of the Idaho Falls, ID area?
About 14.3% of the Idaho Falls, ID area's population in 2024 was aged 65 years or older, lower than the 18% share in the nation overall. Children (under 18) account for 29.1% of the Idaho Falls, ID area population, above the 21.6% population share of children nationwide.
A lower share of the Idaho Falls, ID area population is 65 and older than the US overall.
Population share by age group in Idaho Falls, ID Metro Area and the US overall (2024)
What is the racial and ethnic makeup of the Idaho Falls, ID area?
Non-Hispanic white residents make up 81.6% of the Idaho Falls, ID area population, higher than the national share of 57.5%.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
A higher share of the Idaho Falls, ID area population is non-Hispanic white than the US overall.
Population share by race and ethnicity in Idaho Falls, ID Metro Area and the US overall (2024)
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
