Gem County, Idaho Population 2020

Gem County, Idaho's estimated population is 18,216 with a growth rate of 1.62% in the past year according to the most recent United States census data. Gem County, Idaho is the 19th largest county in Idaho.

Year Population Growth Growth Rate
202018,2162911.62%
201917,9252911.65%
201817,6342911.68%
201717,3433852.27%
201616,9582781.67%
201516,680340.20%
201416,646770.46%
201316,569-58-0.35%
201216,627-62-0.37%
201116,68920.01%
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%
2020 Growth Rate
1.62%
County Website
State
Founded
March 15, 1915
County Seat
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Gem County, Idaho Population Growth

Population by Race

Race Population Percentage
White15,35890.07%
Some Other Race8074.73%
Two or More Races4492.63%
American Indian and Alaska Native3221.89%
Asian1140.67%
Native Hawaiian and Other Pacific Islander20.01%
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Gem County, Idaho Population Pyramid 2020

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Gem County, Idaho Median Age

45.1


Total

43.8


Male

45.8


Female

Gem County, Idaho Adults

There are 13,069 adults, (3,627 of whom are seniors) in Gem County, Idaho.

Gem County, Idaho Age Dependency

80.6

Age Dependency Ratio

38.4

Old Age Dependency Ratio

42.2

Child Dependency Ratio

Gem County, Idaho Sex Ratio

Female

8,698

51.01%

Male

8,354

48.99%

Gem County, Idaho Households and Families

Gem County, Idaho Renter vs Owner Occupied by Household Type

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Gem County, Idaho Household Types

Type Owner Renter
Married86.4%13.6%
Male85.5%14.5%
All73.5%26.5%
Female61.4%38.6%
Non Family57%43%

73.5%

Rate of Home Ownership

Type Count Average Size Owned
All6,5832.5773.5
Married3,2143.1686.4
Non Family2,1421.1657
Female8753.4361.4
Male3523.5785.5

3.14

Average Family Size

2.57

Average Household Size

5.8%

Unmarried (Opposite Sex)

0%

Unmarried (Same Sex)

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Gem County, Idaho Education

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Education Attained Count Percentage
Less Than 9th Grade5024.26%
9th to 12th Grade9237.83%
High School Graduate4,62139.21%
Some College2,72623.13%
Associates Degree1,26310.72%
Bachelors Degree1,18610.06%
Graduate Degree5634.78%
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Gem County, Idaho Educational Attainment by Race

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Name Total High School Bachelors
White10,7769,8151,602
Hispanic61519650
Other Race3276149
Multiple Races20011225
Native American19517072
Asian8264
Islander22

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

The highest rate of bachelors degrees is among native american people with a rate of 36.92%.

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Name Average Male Female
Overall$27,165$31,786$19,634
Less Than High School$27,909$29,250$18,045
High School Grad$23,205$30,810$17,274
Some College$26,637$34,107$20,813
Bachelors Degree$33,424$43,977$21,000
Graduate Degree$53,077$57,813$40,385

$27,165

Average Earnings

$31,786

Average Male

$19,634

Average Female

Gem County, Idaho Language

Gem County, Idaho Language by Age

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Gem County, Idaho Language

92.12% of Gem County, Idaho residents speak only English, while 7.88% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 6.60% of the population.

Gem County, Idaho Poverty

Gem County, Idaho Poverty by Race

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Name Total In Poverty Poverty Rate
White14,8632,67317.98%
Hispanic1,39635825.64%
Other80711314.00%
Multiple4448619.37%
Native3173511.04%

18.29%

Overall Poverty Rate

17.82%

Male Poverty Rate

18.75%

Female Poverty Rate

Poverty in Gem County, Idaho

The race most likely to be in poverty in Gem County, Idaho is Hispanic, with 25.64% below the poverty level.

The race least likely to be in poverty in Gem County, Idaho is Native, with 11.04% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 6.77%. Among those working part-time, it was 16.31%, and for those that did not work, the poverty rate was 22.00%.

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Name Poverty
Less Than High School23.99%
High School18.00%
Some College17.04%
Bachelors or Greater9.92%
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Name Poverty
Male Unemployed44.16%
Female Employed13.10%
Female Unemployed8.18%
Male Employed7.90%

Gem County, Idaho Income

Gem County, Idaho Income by Household Type

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Name Median Mean
Households$43,001$52,420
Families$50,578$60,890
Married Families$59,104-
Non Families$21,847$29,406
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Gem County, Idaho Marital Status

Gem County, Idaho Marital Status

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Marriage Rates

50.1%

Overall Marriage Rate

50.4%

Male Marriage Rate

49.9%

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 Over 65, 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 Veterans

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2,005

Number of Veterans

1,786

Male Veterans

219

Female Veterans

War Veterans
Vietnam874
Second Gulf War316
First Gulf War221
Korea181
World War II72
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Age Group Veterans
65 to 74604
75+513
55 to 64419
35 to 54281
18 to 34188
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Name Veterans % of Total
White1,91816.02%
Indian5125.76%
2 or More3615.13%

Gem County, Idaho Veterans by Education

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4.02%

Veteran Poverty Rate

39.85%

Veteran Disability Rate

Gem County, Idaho Employment Status

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51.3%

Labor Force Participation

49%

Employment Rate

4.5%

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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52.28%

Born in Idaho

96.99%

Native Born

3.01%

Foreign Born

2.24%

Non Citizen

0.77%

Naturalized

Place of Birth

96.99% of Gem County, Idaho residents were born in the United States, with 52.28% having been born in Idaho. 2.24% 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