United States › Idaho › Gem County COUNTY · 2020 ACS
Gem County Idaho · 19,123 residents · 560 sq mi
Time machine
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The short version
With 19,123 people, Gem County is a county in Idaho. 19% of adults hold a bachelor's degree, below the 33% national rate. Owners hold 78% of the housing stock. At a median age of 44.1, this is an older place than the country as a whole. The population is up 26% since 2000. 4% of locals were born outside the United States.
At a glance
Lower income
below the US median
US median: $66,278
Older
median age 44.1
US median: 38.8
Less educated
19% hold a bachelor's degree
US average: 33%
Less affordable
home values up 33%, inflation adjusted
US median home: $265,253
Section 01
Population & growth from 37.5 in 2000
US average: 38.8
Population, 1990 – 2024
11K 14K 16K 19K 21K 1990 2000 2010 2020 2024 Gem County Age distribution, 2020
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Section 02
Income & economy $53,720
+4%inflation adjusted, since 2000
from $34,460 in 2000
US average: $66,278
from $15,340 in 2000
US average: $35,364
Households earning $100K+
from 20.1% in 2009
US average: 43.9%
from 13.1% in 2000
US average: 12.8%
Workforce by industry, 2020
Agriculture, forestry, fishing 4.7%
Professional, scientific, technical 4.2%
Transportation & warehousing 4.1%
Education & health services 3.6%
Public administration 1.8%
Arts, entertainment, food 0%
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$198,700
+33%inflation adjusted, since 2000
from $99,500 in 2000
US average: $265,253
$664
−12%inflation adjusted, since 2000
from $502 in 2000
US average: $1,124
from 79.8% in 2000
22.1% rent
from 2.55 people in 2009
US average: 2.61
from 3.8 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04
Race & ethnicity 2000
White, non-Hispanic 90.7%(13,762)
Hispanic / Latino 6.9%(1,050)
2020
White, non-Hispanic 84.4%(16,132)
Hispanic / Latino 9%(1,722)
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 20 more ancestry groups with data from 11.4% in 2000
US average: 32.9%
High school or higher
from 79.4% in 2000
US average: 88.5%
from 2.8% in 2000
US average: 12.7%
Section 06
Commute & transportation from 21.7 min in 2000
US average: 26.9
from 70.3% in 2009
US average: 75.1%
from 3.4% in 2009
US average: 8.4%
Section 07
Work & employment from 11.8% in 2011
US average: 5.4%
from 59.8% in 2011
US average: 63.4%
Women 20-64 in the labor force
US average: 73.3%
from 23.5% in 2009
US average: 39.3%
Section 08
People & community from 4.1% in 2009
US average: 13.5%
from 22.1% in 2013
US average: 8.8%
Computer in household
US average: 91.9%
Marital status (2024)
Men 15+
Never married 25.1%(2,161)
Women 15+
Never married 19.1%(1,596)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 22.1% in 2013
US average: 8.8%
Direct-purchase
US average: 13.7%
VA health care
US average: 2.3%
Any private
US average: 68.1%
Any public
US average: 35.2%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2020
Gulf War (2001 or later) 11.7%(200)
Gulf War (1990s) 12.2%(208)
Share of the 1,707 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
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Drill deeper
Places similar to Gem County Head to head
Compare Gem County to nearby counties GEM COUNTY VS
Payette County
Income $67,673 +26%
Home value $341,800 +72%
Population 27,824 +28%
SEE FULL COMPARISON →
GEM COUNTY VS
Washington County
Income $54,000 +1%
Home value $278,100 +40%
Population 11,583 −47%
SEE FULL COMPARISON →
GEM COUNTY VS
Canyon County
Income $76,488 +42%
Home value $390,000 +96%
Population 275,123 +1164%
SEE FULL COMPARISON →
GEM COUNTY VS
Boise County
Income $78,774 +47%
Home value $476,100 +140%
Population 8,545 −61%
SEE FULL COMPARISON →
Frequently asked
How many people live in Gem County, Idaho? Gem County, Idaho has about 19,123 residents according to the 2020 American Community Survey.
What is the median household income in Gem County, Idaho? The typical household in Gem County, Idaho earns about $53,720 a year. Half of households make more than that, and half make less.
Is Gem County, Idaho expensive? In Gem County, Idaho, the median home is worth about $198,700, and the typical rent is about $664 a month.
How educated are people in Gem County, Idaho? About 18.9% of adults age 25 and over in Gem County, Idaho hold a bachelor's degree or higher.
What is the poverty rate in Gem County, Idaho? About 13.9% of people in Gem County, Idaho live below the federal poverty line.
Has Gem County, Idaho grown since 1990? Yes, Gem County, Idaho has grown since 1990. The population has added about 7,279 residents, a change of about 61 percent over that period.
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