Idaho Falls, Idaho Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Idaho Falls, Idaho is 66,672 as of the 2023 American Community Survey, making it the 4th-largest city in Idaho. The median household income is $69,630, the median home value is $298,600, and the median age is 33.5.
The population has grown 19.9% since 2010 (57,995 → 69,523).
66,672
Population
2456
People / sq mi
$69,630
Median Income
$298,600
Median Home Value
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Idaho Falls covers 27.1 sq mi of land at 2456 people per square mile.
About Idaho Falls, ID
Idaho Falls skews on age — the median resident is 33.5, younger than the national median. Idaho Falls is a city in Idaho with a population of 66,672. It is the #4-largest of all cities in Idaho nationally.
Household earnings are middling, with a median of $69,630 — below the US median of $78,538. Poverty runs at 8.1%, below the national 12.4%. Homes carry a median value of $298,600, with typical rent around $992.
Roughly 31.0% of adults have a bachelor’s, below the national 35.0%. Remote work is below the national 14.0% at 8.3%, and the average commute runs about 18 minutes each way.
Idaho Falls city Population History (2010-2024)
The city of Idaho Falls city had a population of 57,995 in 2010 and 69,523 in 2024, a 19.9% growth over 14 years. The peak was 69,523 in 2024. Average annual growth rate: 1.31%.
69,523
Population (2024)
57,995
Population (2010)
69,523
Peak (2024)
1.31%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 57,995 |
| 2011 | 58,518 |
| 2012 | 58,860 |
| 2013 | 59,034 |
| 2014 | 59,320 |
| 2015 | 59,858 |
| 2016 | 60,797 |
| 2017 | 61,768 |
| 2018 | 62,023 |
| 2019 | 62,888 |
| 2020 | 65,929 |
| 2021 | 67,192 |
| 2022 | 67,852 |
| 2023 | 68,072 |
| 2024 | 69,523 |
Race & Ethnicity
| White | 82.8% |
| Black or African American | 0.4% |
| Asian | 0.1% |
| Hispanic or Latino (any race) | 2.5% |
| Two or More Races | 0.1% |
Economy & Income
$69,630
Median Household Income
$33,511
Per Capita Income
8.1%
Poverty Rate
2.6%
Unemployment Rate
Housing
$298,600
Median Home Value
$992
Median Rent
64.1%
Owner-Occupied
Education
90.5%
High School+
31.0%
Bachelor's+
Commute
2.6%
Drive Alone
74.0%
Public Transit
8.3%
Work From Home
18.2 min
Avg Commute
Community Profile
39.3%
Foreign Born
89.3%
Non-English at Home
7.9%
Veterans
14.3%
With Disability
91.9%
Health Insurance
96.3%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 22.4% |
| Finance, Insurance & Real Estate | 13.6% |
| Education, Health Care & Social Services | 9.8% |
| Manufacturing | 9.6% |
| Construction | 8.3% |
| Public Administration | 4.4% |
| Arts, Entertainment & Food Services | 3.8% |
| Retail Trade | 3.7% |
| Information | 3.7% |
| Transportation & Warehousing | 1.5% |
| Agriculture & Mining | 1.5% |
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Frequently Asked Questions
Idaho Falls, Idaho has a population of 66,672 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 4th-largest city in Idaho.
The median household income in Idaho Falls, Idaho is $69,630, with 8.1% of residents living below the federal poverty level.
The median home value in Idaho Falls, Idaho is $298,600, with median monthly rent at $992 and a homeownership rate of 64.1%.
The median age in Idaho Falls, Idaho is 33.5 years. The population is 49.0% male and 51.0% female.
The population has grown 19.9% since 2010 (57,995 → 69,523).
Idaho Falls city, ID Climate
Idaho Falls city, ID has an average annual temperature of 6.7°C (44°F) and receives about 307 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
6.7°C
Avg Temp
307
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -6° / 21° | 25 mm |
| February | -3° / 26° | 22 mm |
| March | 2° / 35° | 22 mm |
| April | 6° / 44° | 26 mm |
| May | 11° / 52° | 38 mm |
| June | 16° / 60° | 34 mm |
| July | 19° / 67° | 19 mm |
| August | 19° / 66° | 19 mm |
| September | 14° / 57° | 24 mm |
| October | 8° / 46° | 24 mm |
| November | 0° / 32° | 29 mm |
| December | -5° / 22° | 25 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Idaho Falls city, ID
The most comfortable months to visit Idaho Falls city, ID are typically July, August and June, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 30°C high). The coldest is January (near -11°C low). May is usually the wettest month.
Where to stay near Idaho Falls
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.