Elmore County, Idaho Demographics

Population trends, housing costs, income, commuting, and health, all on one page.

Elmore County, ID Population Density Map and Area Scores

Area Score

Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.

  • B
    Health Around average
  • D
    Income Well below average
    Less wealthy than 70% of counties in Idaho
  • D
    Education Well below average

Source: Map AI Methodology

Elmore County
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Population density, people per sq mi

Population: density and quick facts

Metric Elmore County Idaho Avg U.S. Average
Population 29,321 1,929,983 337,468,954
Population density (per sq mi) 9.5 23.1 86.4
Population growth (%/yr) 1.47% 2.12% 0.59%
Median age 31.7 38.7 37.3
Households 11,067 712,816 130,235,071

Population in Elmore County grew by 1.8% from 2009 to 2024, reaching 29,321 in 2024.

Population Growth 2009–2024

Year Elmore County

Race & Ethnicity

Group Share

Age & Sex

The largest generation in Elmore County is Gen Z, aged 13–28, at 26.5% of residents. That is 3.6 points above Idaho as a whole.

Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Idaho, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.

Male and female share

Women are 46.6% of the people living in Elmore County and men 53.4%.

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29,321

100% of everyone living in Elmore County

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Economy

Elmore County has a the economy index of D, which means it is barely prosperous.

Metric Elmore County Idaho Avg U.S. Average
Median household income $66,194 $78,141 $80,455
Income growth (%/yr) 5.25% 5.97% 4.80%
Unemployment rate 4.7% 3.7% 5.2%

The median household income in Elmore County is about 15% lower than in Idaho.

Detailed wealth and income breakdown →

Housing

Metric Elmore County Idaho Avg U.S. Average
Median home price $421,052 $394,140 $248,835
Median rent $1,242 $1,236 $1,407
Homeownership rate 65.6% 72.3% 65.2%

The median home price in Elmore County is about 28.3 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,242 per month for that long.

Full housing market analysis →

Commute Time & Mobility

Commuters in Elmore County spend about 32 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 131 hours, about 5.5 full days, spent commuting.

Metric Elmore County Idaho Avg U.S. Average
One-way commute (min) 15.8 18.0 22.4
Round-trip commute (min) 31.5 35.9 44.8
Yearly time spent (hours) 131 150 187
Estimated yearly cost $4,073 $4,641 $5,790
Work from home 4.5% 13.3% 15.0%
Highway traffic (vehicles/day) 7,053 4,714 8,813
Local road traffic (vehicles/day) 308 865 1,355

Fastest commutes among counties in Idaho: Custer County (8.9 min), Lemhi County (11.6 min), Madison County (12.0 min).
Slowest: Camas County (49.5 min), Boise County (38.0 min), Lincoln County (32.0 min).

The average commute time in Elmore County is 16 minutes, shorter than the 18 minutes in Idaho.

Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.

Commute and transport details →

Education & Households

Elmore County has a education index of D, which means it is barely educated.

Metric Elmore County Idaho Avg U.S. Average
Bachelor's degree or higher 18.0% 27.1% 31.6%
Average household size 2.54 2.64 2.53

Highest education index among counties in Idaho: Latah County (0.4), Teton County (0.3), Ada County (0.3).
Lowest: Clark County (0.1), Owyhee County (0.2), Lincoln County (0.2).

Health

Elmore County has a health index of B, which means it is quite healthy.

Metric Elmore County Idaho Avg U.S. Average
Life expectancy (years) 77.9 79.5 78.3
Self-rated poor health 15.3% 15.6% 16.3%
Smokers 18.5% 17.6% 19.0%

Highest health index among counties in Idaho: Madison County (0.8), Latah County (0.8), Ada County (0.8).
Lowest: Shoshone County (0.8), Washington County (0.8), Lincoln County (0.8).

Full health data →

Elmore County, ID Compared With Nearby Counties

How Elmore County, ID compares with the 1 counties closest to it.

Area Population Median household income Median home price Commute
Elmore County, ID 29,321 $66,194 #2/2 $421,052 #2/2 15.8 min #1/2
Ada County, ID 518,902 $92,349 $485,999 20.2 min

Frequently Asked Questions

Common questions about Elmore County, Idaho.

What is the population of Elmore County, Idaho?

About 29,321 people live in Elmore County, Idaho, in 11,067 households of 2.5 people on average. The median age is 31.7, so residents are younger than the U.S. median of 37.3 by about 6 years.

How densely populated is Elmore County, Idaho?

Averaged over its land area, Elmore County, Idaho has 9 people per square mile, a density typical of rural areas. That is about 11% of the U.S. average of 86.

Can a typical household afford a home in Elmore County, Idaho?

The median home costs 6.4 times the median household income ($421,052 against $66,194), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $1,242 a month takes about 23% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.

What share of adults in Elmore County, Idaho have a college degree?

18.0% of adults in Elmore County, Idaho hold a bachelor's degree or higher (about 1 in 6), well below the U.S. share of 31.6%.

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