Idaho Falls Population

1900–2026

72,700

2026 projection

10.3% since 2020 (increase)

020K40K60K80K1900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Idaho Falls. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202672,700+9151.27%
202571,785+2,2173.19%
202469,568+1,5032.21%
202368,065+2580.38%
202267,807+6370.95%
202167,170+1,2621.91%
202065,908+2,8644.54%
201963,044+8901.43%
201862,154+3140.51%
201761,840+1,0131.67%

Showing 10 of 28 years.

Idaho Falls Demographics

33.7median age

Median age

Female33.6 yrs
Male33.8 yrs

Adults

48,883
9,199 seniors · 19%39,684 other adults

Sex

Female 50.4% · 34,153Male 49.6% · 33,572

Population by age

MaleFemale85+ years, male: 51485+ years, female: 51780–84 years, male: 54780–84 years, female: 93175–79 years, male: 67975–79 years, female: 82470–74 years, male: 1,01570–74 years, female: 1,08165–69 years, male: 1,48265–69 years, female: 1,60960–64 years, male: 2,07360–64 years, female: 1,47055–59 years, male: 1,64755–59 years, female: 1,91150–54 years, male: 1,52450–54 years, female: 1,34345–49 years, male: 1,73445–49 years, female: 2,03740–44 years, male: 2,47940–44 years, female: 2,19935–39 years, male: 2,47535–39 years, female: 2,47930–34 years, male: 2,28630–34 years, female: 2,62925–29 years, male: 2,87025–29 years, female: 2,43720–24 years, male: 2,24120–24 years, female: 2,19015–19 years, male: 2,42315–19 years, female: 2,21210–14 years, male: 2,45410–14 years, female: 3,1885–9 years, male: 3,0615–9 years, female: 2,5300–4 years, male: 2,0680–4 years, female: 2,56685+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–41K1K2K2K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 677 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Idaho Falls Income

$73,110median household income

Median household income

$73,110

Half of households earn more, half earn less

Median earnings

$44,403

Typical yearly pay for a worker 25 or older.

Poverty rate

11.5%

About 1 in 9 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Idaho Falls Marital Status

49% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married49%49%49%
Never married30%35%26%
Divorced15%12%18%
Widowed4%2%6%
Separated2%2%2%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

10 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year