Twin Falls County, Idaho Population 2020

Twin Falls County, Idaho's estimated population is 87,687 with a growth rate of 0.92% in the past year according to the most recent United States census data. Twin Falls County, Idaho is the 6th largest county in Idaho.

Year Population Growth Growth Rate
202087,6878030.92%
201986,8848030.93%
201886,0818030.94%
201785,2781,5311.83%
201683,7471,5171.84%
201582,2301,2341.52%
201480,9961,0981.37%
201379,8981,3531.72%
201278,5454560.58%
201178,0895540.71%
201077,53523,95544.71%
199053,5806531.23%
198052,92711,12026.60%
197041,807-35-0.08%
196041,8428632.11%
195040,9794,57612.57%
194036,4036,57522.04%
193029,8281,4305.04%
192028,39814,855109.69%
191013,5430.00%
2020 Growth Rate
0.92%
County Website
State
Founded
February 21, 1907
County Seat
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Twin Falls County, Idaho Population Growth

Population by Race

Race Population Percentage
White76,99592.03%
Some Other Race2,3742.84%
Asian1,5121.81%
Two or More Races1,3531.62%
American Indian and Alaska Native7730.92%
Black or African American5910.71%
Native Hawaiian and Other Pacific Islander680.08%
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Twin Falls County, Idaho Population Pyramid 2020

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Twin Falls County, Idaho Median Age

34.7


Total

34.2


Male

35.2


Female

Twin Falls County, Idaho Adults

There are 60,425 adults, (12,453 of whom are seniors) in Twin Falls County, Idaho.

Twin Falls County, Idaho Age Dependency

74.4

Age Dependency Ratio

26

Old Age Dependency Ratio

48.4

Child Dependency Ratio

Twin Falls County, Idaho Sex Ratio

Female

42,462

50.75%

Male

41,204

49.25%

Twin Falls County, Idaho Households and Families

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

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Twin Falls County, Idaho Household Types

Type Owner Renter
Married81.7%18.3%
All68.6%31.4%
Non Family53.5%46.5%
Female51.5%48.5%
Male49.6%50.4%

68.6%

Rate of Home Ownership

Type Count Average Size Owned
All30,6972.6968.6
Married16,8773.3381.7
Non Family9,1231.2453.5
Female3,1293.0951.5
Male1,5683.3149.6

3.21

Average Family Size

2.69

Average Household Size

5.1%

Unmarried (Opposite Sex)

0.3%

Unmarried (Same Sex)

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Twin Falls County, Idaho Education

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Education Attained Count Percentage
Less Than 9th Grade2,6124.91%
9th to 12th Grade3,8897.31%
High School Graduate14,84027.89%
Some College14,19526.67%
Associates Degree6,73912.66%
Bachelors Degree6,97013.10%
Graduate Degree3,9737.47%
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Twin Falls County, Idaho Educational Attainment by Race

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Name Total High School Bachelors
White44,59740,75610,037
Hispanic6,5804,112469
Other Race1,25072261
Asian924835225
Multiple Races53547481
Native American51643091
Black22022033
Islander686815

The highest rate of high school graduation is among black people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 24.35%.

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Name Average Male Female
Overall$32,033$40,075$23,384
Less Than High School$25,637$30,204$16,861
High School Grad$29,468$35,133$20,620
Some College$31,097$41,235$21,499
Bachelors Degree$41,055$54,049$35,235
Graduate Degree$56,179$75,134$43,750

$32,033

Average Earnings

$40,075

Average Male

$23,384

Average Female

Twin Falls County, Idaho Language

Twin Falls County, Idaho Language by Age

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Twin Falls County, Idaho Language

85.78% of Twin Falls County, Idaho residents speak only English, while 14.22% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 10.46% of the population.

Twin Falls County, Idaho Poverty

Twin Falls County, Idaho Poverty by Race

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Name Total In Poverty Poverty Rate
White65,6068,21012.51%
Hispanic13,2883,05122.96%
Other2,37463626.79%
Black56935261.86%
Asian1,51229019.18%
Multiple1,31427220.70%
Native75014118.80%

14.77%

Overall Poverty Rate

13.49%

Male Poverty Rate

16.02%

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 61.86% below the poverty level.

The race least likely to be in poverty in Twin Falls County, Idaho is White, with 12.51% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.09%. Among those working part-time, it was 19.68%, and for those that did not work, the poverty rate was 20.68%.

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Name Poverty
Less Than High School18.36%
High School14.95%
Some College11.24%
Bachelors or Greater4.80%
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Name Poverty
Female Unemployed31.57%
Female Employed11.90%
Male Unemployed11.72%
Male Employed6.56%

Twin Falls County, Idaho Income

Twin Falls County, Idaho Income by Household Type

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Name Median Mean
Households$50,778$64,834
Families$61,170$76,347
Married Families$69,112$85,402
Non Families$27,271$34,207
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Twin Falls County, Idaho Marital Status

Twin Falls County, Idaho Marital Status

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Marriage Rates

55.6%

Overall Marriage Rate

56.8%

Male Marriage Rate

54.5%

Female Marriage Rate

Twin Falls County, Idaho Married by Age and Sex

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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

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Twin Falls County, Idaho Veterans

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5,760

Number of Veterans

5,345

Male Veterans

415

Female Veterans

War Veterans
Vietnam1,996
First Gulf War1,314
Second Gulf War907
Korea550
World War II263
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Age Group Veterans
35 to 541,618
75+1,414
65 to 741,337
55 to 64989
18 to 34402
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Name Veterans % of Total
White5,4989.77%
Hispanic3944.74%
2 or More7911.62%
Asian737.46%
Indian6811.83%
Other412.73%
Black10.33%

Twin Falls County, Idaho Veterans by Education

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8.96%

Veteran Poverty Rate

29.57%

Veteran Disability Rate

Twin Falls County, Idaho Employment Status

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65.4%

Labor Force Participation

63%

Employment Rate

3.4%

Unemployment Rate

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Origin of Non-Citizens

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

Origin of Naturalized Citizens

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52.52%

Born in Idaho

91.55%

Native Born

8.45%

Foreign Born

5.81%

Non Citizen

2.64%

Naturalized

Place of Birth

91.55% of Twin Falls County, Idaho residents were born in the United States, with 52.52% having been born in Idaho. 5.81% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990