Twin Falls County, Idaho Population 2024

96,491

Twin Falls County, Idaho's estimated 2024 population is 96,491 with a growth rate of 1.4% 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 24.43% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
2029103,1661,3351.31%
2028101,8311,3351.33%
2027100,4961,3351.35%
202699,1611,3351.36%
202597,8261,3351.38%
202496,4911,3351.4%
202395,1561,3351.42%
202293,8211,4271.54%
202192,3942,0222.24%
202090,3723,2453.72%
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%
191013,543-89,623-86.87%
2024 Growth Rate
1.4% (1,335)
County Website
Twin Falls County
State
Idaho
County Seat
Twin Falls
2020 Population
90,372
Area
1922 mi²
Density
50 people/mi²
Growth Since 2020
6.77% (6,119)
Founded
February 21, 1907

Population by Race

Race
Population
Percentage (of total)
White75,17281.6%
Two or more races9,23210.02%
Other race4,9535.38%
Asian1,2391.34%
Black or African American7840.85%
Native American4740.51%
Native Hawaiian or Pacific Islander2670.29%

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

35.8

Total

35.5

Male

36.1

Female

Twin Falls County, Idaho Adults

There are 67,514 adults, (15,135 of whom are seniors) in Twin Falls County, Idaho.

Twin Falls County, Idaho Age Dependency

75.9

Age Dependency Ratio

28.9

Old Age Dependency Ratio

47

Child Dependency Ratio

Twin Falls County, Idaho Sex Ratio

Female46,37050.34%
Male45,75149.66%

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
All33,9122.6769.630.4
Married18,2823.3182.917.1
Non Family10,3071.2555.144.9
Female3,4613.450.749.3
Male1,8622.9454.645.4

3.2

Average Family Size

2.67

Average Household Size

69.6%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Twin Falls County, Idaho Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade3,9506.63%
Associates Degree6,69111.24%
Bachelors Degree8,28913.92%
Graduate Degree5,4079.08%
High School Graduate17,20128.89%
Less Than 9th Grade2,8064.71%
Some College15,19425.52%

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

Race
Total
High School
Bachelors
White48,24444,71712,332
Hispanic8,2545,747886
2+ Races4,3883,562550
Other Race2,8351,866332
Asian764364152
Black34224737
Native American28523543
Islander120810

The highest rate of high school graduation is among white people with a rate of 92.69%.

The highest rate of bachelors degrees is among white people with a rate of 25.56%.

Twin Falls County, Idaho Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$52,155$65,929$42,463
Graduate Degree$59,461$69,539$57,642
High School Graduate$39,061$46,516$33,149
Less Than 9th Grade$32,177$42,516$24,679
Overall$41,859$51,716$32,423
Some College$40,350$51,492$28,523

$41,859

Average Earnings

$51,716

Average Male

$32,423

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

85.36% of Twin Falls County, Idaho residents speak only English, while 14.64% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 11.35% of the population.

Twin Falls County, Idaho Language

Twin Falls County, Idaho Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White69,0265,7258.29%
Hispanic15,9912,65916.63%
Multiple9,1191,95321.42%
Other4,93374315.06%
Black75629238.62%
Asian1,228483.91%
Native454306.61%

10.74%

Overall Poverty Rate

10.15%

Male Poverty Rate

11.32%

Female Poverty Rate

Poverty in Twin Falls County, Idaho

The race most likely to be in poverty in Twin Falls County, Idaho is Black, with 38.62% below the poverty level.

The race least likely to be in poverty in Twin Falls County, Idaho is Asian, with 3.91% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 3.42%. Among those working part-time, it was 12.6%, and for those that did not work, the poverty rate was 15.11%.

Twin Falls County, Idaho Poverty

rate

Rate
Poverty
Less Than 9th Grade16.67%
High School11.2%
Some College8.05%
Bachelors or Greater3.33%

Twin Falls County, Idaho Poverty Rate by Education

rate

Rate
Poverty
Male Unemployed22.66%
Female Unemployed21.14%
Female Employed6.56%
Male Employed5.67%

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

Twin Falls County, Idaho Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$78,328$99,170
Households$65,338$86,618
Married Families$92,155$107,427
Non Families$36,645$52,073

mean

median

Income by Household Type

Twin Falls County, Idaho Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

53.9%

Overall Marriage Rate

54.9%

Male Marriage Rate

53.0%

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 55-64.

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

5,131

Number of Veterans

4,724

Male Veterans

407

Female Veterans

War
Veterans
Vietnam1,770
First Gulf War1,181
Second Gulf War1,123
Korea278
World War II21

Twin Falls County, Idaho Veterans by War

count

Age Group
Veterans
65 to 741,382
35 to 541,299
55 to 641,134
75+1,121
18 to 34195

Twin Falls County, Idaho Veterans by Age

count

Name
Veterans
% of Total
White4,7058.32%
Hispanic3653.56%
2+ Races2204.22%
Other Race1443.91%
Native American4710.76%
Asian100.96%
Black51.22%

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

5.19%

Veteran Poverty Rate

31.9%

Veteran Disability Rate

Twin Falls County, Idaho Veterans by Education

LaborForceParticipation

63.8%

Labor Force Participation

61.7%

Employment Rate

3.2%

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

54.28%

Born in Twin Falls County, Idaho

92.2%

Native Born

7.8%

Foreign Born

4.05%

Non Citizen

3.75%

Naturalized

Place of Birth

92.2% of Twin Falls County, Idaho residents were born in the United States, with 54.28% having been born in Idaho. 4.05% 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