Gem County, Idaho Population 2021

Gem County, Idaho's estimated population is 19,162 with a growth rate of 2.82% in the past year according to the most recent United States census data. Gem County, Idaho is the 20th largest county in Idaho. The 2010 Population was 16,687 and has seen a growth of 14.83% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
202119,1625252.82%
202018,6375252.90%
201918,1125252.99%
201817,5872761.59%
201717,3113522.08%
201616,9592741.64%
201516,685390.23%
201416,646770.46%
201316,569-61-0.37%
201216,630-62-0.37%
201116,69250.03%
201016,6874,84340.89%
199011,844-128-1.07%
198011,9722,58527.54%
19709,3872602.85%
19609,1273974.55%
19508,730-814-8.53%
19409,5442,12528.64%
19307,41999215.43%
19206,4270.00%
2021 Growth Rate
2.82%
County Website
State
Founded
March 15, 1915
County Seat
2010 Population
16,687
Growth Since 2010
14.83%
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Gem County, Idaho Population Growth

Population by Race

Race Population Percentage
White15,61190.08%
Some Other Race8785.07%
Two or More Races4842.79%
American Indian and Alaska Native2401.38%
Asian980.57%
Black or African American200.12%
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Gem County, Idaho Population by Race

Gem County, Idaho Population Pyramid $2021

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Gem County, Idaho Median Age

44.6


Total

41.9


Male

45.8


Female

Gem County, Idaho Adults

There are 13,315 adults, (3,678 of whom are seniors) in Gem County, Idaho.

Gem County, Idaho Age Dependency

79.8

Age Dependency Ratio

38.2

Old Age Dependency Ratio

41.7

Child Dependency Ratio

Gem County, Idaho Sex Ratio

Female

8,715

50.29%

Male

8,616

49.71%

Gem County, Idaho Population by Age

Gem County, Idaho Renter vs Owner Occupied by Household Type

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Gem County, Idaho Household Types

Type Owner Renter
Married88.4%11.6%
Male87.6%12.4%
All74.8%25.2%
Female60.1%39.9%
Non Family56.1%43.9%

74.8%

Rate of Home Ownership

Gem County, Idaho Households and Families

Type Count Average Size Owned
All6,6832.5774.8
Married3,4123.1788.4
Non Family2,0981.1556.1
Female8033.2560.1
Male3703.7487.6

3.13

Average Family Size

2.57

Average Household Size

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Gem County, Idaho Households by Type

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Education Attained Count Percentage
Less Than 9th Grade4503.76%
9th to 12th Grade1,0088.43%
High School Graduate4,42036.95%
Some College2,89424.19%
Associates Degree1,0989.18%
Bachelors Degree1,49112.46%
Graduate Degree6015.02%
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Gem County, Idaho Educational Attainment by Sex (over 25)

Gem County, Idaho Educational Attainment by Race

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Race Total High School Bachelors
White10,97310,0251,940
Hispanic57810055
Other Race3785040
2+ Races27817244
Native American13713753
Asian8370

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

The highest rate of bachelors degrees is among native american people with a rate of 38.69%.

Gem County, Idaho Educational Attainment by Race

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Name Average Male Female
Overall$28,643$33,849$20,580
Less Than 9th Grade$27,150$29,507$
High School Graduate$22,364$29,750$17,459
Some College$31,107$36,406$24,020
Bachelors Degree$37,308$52,628$21,912
Graduate Degree$57,730$59,050$39,688

$28,643

Average Earnings

$33,849

Average Male

$20,580

Average Female

Gem County, Idaho Earnings by Educational Attainment

Gem County, Idaho Language by Age

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Gem County, Idaho Language

91.95% of Gem County, Idaho residents speak only English, while 8.05% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 6.52% of the population.

Gem County, Idaho Language

Gem County, Idaho Poverty by Race

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Name Total In Poverty Poverty Rate
White15,0862,30815.30%
Hispanic1,43252436.59%
Multiple48317836.85%
Other87714716.76%
Native2332812.02%

16.97%

Overall Poverty Rate

16.81%

Male Poverty Rate

17.13%

Female Poverty Rate

Poverty in Gem County, Idaho

The race most likely to be in poverty in Gem County, Idaho is Multiple, with 36.85% below the poverty level.

The race least likely to be in poverty in Gem County, Idaho is Native, with 12.02% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 7.95%. Among those working part-time, it was 12.26%, and for those that did not work, the poverty rate was 20.95%.

Gem County, Idaho Poverty

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Name Poverty
Less Than 9th Grade26.90%
High School17.72%
Some College14.26%
Bachelors or Greater5.60%

Gem County, Idaho Poverty Rate by Education

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Rate Poverty
Male Unemployed42.66%
Female Employed10.05%
Male Employed9.13%
Female Unemployed0.00%

Gem County, Idaho Poverty Rate by Employment Status and Sex

Gem County, Idaho Income by Household Type

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Name Median Mean
Households$45,492$57,326
Families$55,925$67,827
Married Families$61,820$74,210
Non Families$23,618$30,068
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Income by Household Type

Gem County, Idaho Marital Status

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Marriage Rates

52.7%

Overall Marriage Rate

53.6%

Male Marriage Rate

51.7%

Female Marriage Rate

Gem County, Idaho Married by Age and Sex

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Gem County, Idaho Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 45-54.

Gem County, Idaho Marital Status by Race

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Gem County, Idaho Marital Status

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1,947

Number of Veterans

1,696

Male Veterans

251

Female Veterans

War Veterans
Vietnam849
Second Gulf War317
Korea229
First Gulf War195
World War II37

Gem County, Idaho Veterans by War

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Age Group Veterans
65 to 74636
75+477
55 to 64472
35 to 54245
18 to 34117

Gem County, Idaho Veterans by Age

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Name Veterans % of Total
White1,86215.36%
Native American4330.71%
2+ Races4212.92%

Gem County, Idaho Veterans by Race

Gem County, Idaho Veterans by Education

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3.73%

Veteran Poverty Rate

40.13%

Veteran Disability Rate

Gem County, Idaho Veterans by Education

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53.8%

Labor Force Participation

52.2%

Employment Rate

3%

Unemployment Rate

Gem County, Idaho Employment by Age

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Gem County, Idaho Employment by Race

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Gem County, Idaho Employment by Education

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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49.22%

Born in Gem County, Idaho

96.79%

Native Born

3.21%

Foreign Born

2.30%

Non Citizen

0.92%

Naturalized

Place of Birth

96.79% of Gem County, Idaho residents were born in the United States, with 49.22% having been born in Idaho. 2.30% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Gem County, Idaho Place of Birth

  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

Sources