Twin Falls County, Idaho Population 2024

96,374

Twin Falls County, Idaho's estimated 2024 population is 96,374 with a growth rate of 1.41% in the past year according to the most recent United States census data. Twin Falls County, Idaho is the 5th largest county in Idaho. The 2010 population was 77,547 and has seen a growth of 24.28% since that time.

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
2029103,0691,3391.32%
2028101,7301,3391.33%
2027100,3911,3391.35%
202699,0521,3391.37%
202597,7131,3391.39%
202496,3741,3391.41%
202395,0351,3391.43%
202293,6961,3391.45%
202192,3571,9962.21%
202090,3613,2343.71%
201987,1279611.12%
201886,1667270.85%
201785,4391,5921.9%
201683,8471,5581.89%
201582,2891,2701.57%
201481,0191,1001.38%
201379,9191,3551.72%
201278,5644560.58%
201178,1085610.72%
201077,54700%
199053,5806531.23%
198052,92711,12026.6%
197041,807-35-0.08%
196041,8428632.11%
195040,9794,57612.57%
194036,4036,57522.04%
193029,8281,4305.04%
192028,39814,855109.69%
191013,543-89,526-86.86%
showing: 29 rows
2024 Growth Rate
1.41% (1,339)
County Website
Twin Falls County
State
Idaho
County Seat
2020 Population
90,361
Area
1921 mi²
Density
50 people/mi²
Growth Since 2020
6.65% (6,013)
Founded
February 21, 1907

Twin Falls County, Idaho Population 2024

Population by Race

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Race
Population
Percentage (of total)
White75,59483.44%
Two or more races7,9038.72%
Other race4,7015.19%
Asian1,4291.58%
Black or African American4940.55%
Native American4680.52%
Native Hawaiian or Pacific Islander30%

White

Two or more races

Other race

Asian

Black or African American

Native American

Native Hawaiian or Pacific Islander

Twin Falls County, Idaho Population by Race

Twin Falls County, Idaho Population Pyramid 2024

Twin Falls County, Idaho Median Age

35.5

Total

35.2

Male

35.8

Female

Twin Falls County, Idaho Adults

There are 66,431 adults, (14,589 of whom are seniors) in Twin Falls County, Idaho.

Twin Falls County, Idaho Age Dependency

74.7

Age Dependency Ratio

28.1

Old Age Dependency Ratio

46.6

Child Dependency Ratio

Twin Falls County, Idaho Sex Ratio

Female45,51950.25%
Male45,07349.75%

Twin Falls County, Idaho Population by Age

Twin Falls County, Idaho Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All33,3602.6769.430.6
Married18,3303.3382.617.4
Non Family10,2641.2553.846.2
Female3,2613.3352.747.3
Male1,5052.95248

3.22

Average Family Size

2.67

Average Household Size

69.4%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Twin Falls County, Idaho Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Twin Falls County, Idaho Educational Attainment by Sex (over 25)

Twin Falls County, Idaho Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among white people with a rate of 91.57%.

The highest rate of bachelors degrees is among black people with a rate of 42.97%.

Twin Falls County, Idaho Educational Attainment by Race

All

Male

Female

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$40,167

Average Earnings

$50,591

Average Male

$29,243

Average Female

Twin Falls County, Idaho Earnings by Educational Attainment

Twin Falls County, Idaho Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Twin Falls County, Idaho Language

84.78% of Twin Falls County, Idaho residents speak only English, while 15.22% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 11.77% of the population.

Twin Falls County, Idaho Language

Twin Falls County, Idaho Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White68,0886,5689.65%
Hispanic15,5613,24620.86%
Multiple7,8062,08326.68%
Other4,6811,14224.4%
Asian1,420563.94%
Native430296.74%

12.48%

Overall Poverty Rate

11.93%

Male Poverty Rate

13.03%

Female Poverty Rate

Poverty in Twin Falls County, Idaho

The race most likely to be in poverty in Twin Falls County, Idaho is Multiple, with 26.68% below the poverty level.

The race least likely to be in poverty in Twin Falls County, Idaho is Asian, with 3.94% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.02%. Among those working part-time, it was 11.63%, and for those that did not work, the poverty rate was 18.33%.

Twin Falls County, Idaho Poverty

rate

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Rate
Poverty
Less Than 9th Grade20.02%
High School12.82%
Some College9.18%
Bachelors or Greater3.98%

Twin Falls County, Idaho Poverty Rate by Education

rate

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Rate
Poverty
Male Unemployed20.18%
Female Unemployed19.25%
Female Employed7.3%
Male Employed5.57%

Twin Falls County, Idaho Poverty Rate by Employment Status and Sex

Twin Falls County, Idaho Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Twin Falls County, Idaho Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

55.3%

Overall Marriage Rate

55.8%

Male Marriage Rate

54.8%

Female Marriage Rate

Twin Falls County, Idaho Married by Age and Sex

male

female

Twin Falls County, Idaho Marriage

The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 35-44.

Twin Falls County, Idaho Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Twin Falls County, Idaho Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

5,411

Number of Veterans

4,946

Male Veterans

465

Female Veterans

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Twin Falls County, Idaho Veterans by War

count

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Twin Falls County, Idaho Veterans by Age

count

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Twin Falls County, Idaho Veterans by Race

Twin Falls County, Idaho Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.22%

Veteran Poverty Rate

27.07%

Veteran Disability Rate

Twin Falls County, Idaho Veterans by Education

LaborForceParticipation

63.3%

Labor Force Participation

61.2%

Employment Rate

3.1%

Unemployment Rate

Twin Falls County, Idaho Employment by Age

LaborForceParticipation

Twin Falls County, Idaho Employment by Race

LaborForceParticipation

Twin Falls County, Idaho Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

53.08%

Born in Twin Falls County, Idaho

91.73%

Native Born

8.27%

Foreign Born

4.39%

Non Citizen

3.88%

Naturalized

Place of Birth

91.73% of Twin Falls County, Idaho residents were born in the United States, with 53.08% having been born in Idaho. 4.39% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Twin Falls County, Idaho Place of Birth

Sources