Fremont County, Idaho Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Fremont 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
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D
Education Well below average
Source: Map AI Methodology
Population: density and quick facts
| Metric | Fremont County | Idaho Avg | U.S. Average |
|---|---|---|---|
| Population | 13,943 | 1,929,983 | 337,468,954 |
| Population density (per sq mi) | 7.4 | 23.1 | 86.4 |
| Population growth (%/yr) | 0.98% | 2.12% | 0.59% |
| Median age | 40.1 | 38.7 | 37.3 |
| Households | 4,654 | 712,816 | 130,235,071 |
Population in Fremont County grew by 11.2% from 2009 to 2024, reaching 13,943 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Fremont County is Gen Z, aged 13–28, at 21.8% of residents. That is 1.1 points below Idaho as a whole.
- Gen Z 13–28 3,036 21.8% -1.1 pts
- Millennials 29–44 2,731 19.6% -1.1 pts
- Gen X 45–60 2,656 19.0% -0.2 pts
- Boomers 61–79 2,568 18.4% +2.4 pts
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 47.9% of the people living in Fremont County and men 52.1%.
- Women 47.9% Idaho 49.6%
- Men 52.1% Idaho 50.4%
How many residents match a customer profile?
Residents matching this profile
100% of everyone living in Fremont County
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
Fremont County has a the economy index of D, which means it is barely prosperous.
| Metric | Fremont County | Idaho Avg | U.S. Average |
|---|---|---|---|
| Median household income | $72,259 | $78,141 | $80,455 |
| Income growth (%/yr) | 4.78% | 5.97% | 4.80% |
| Unemployment rate | 3.9% | 3.7% | 5.2% |
The median household income in Fremont County is about 8% lower than in Idaho.
Housing
| Metric | Fremont County | Idaho Avg | U.S. Average |
|---|---|---|---|
| Median home price | $163,815 | $394,140 | $248,835 |
| Median rent | $864 | $1,236 | $1,407 |
| Homeownership rate | 82.6% | 72.3% | 65.2% |
The median home price in Fremont County is about 15.8 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $864 per month for that long.
Commute Time & Mobility
Commuters in Fremont County spend about 35 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 147 hours, about 6.1 full days, spent commuting.
| Metric | Fremont County | Idaho Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 17.6 | 18.0 | 22.4 |
| Round-trip commute (min) | 35.3 | 35.9 | 44.8 |
| Yearly time spent (hours) | 147 | 150 | 187 |
| Estimated yearly cost | $4,554 | $4,641 | $5,790 |
| Work from home | 11.7% | 13.3% | 15.0% |
| Highway traffic (vehicles/day) | 3,710 | 4,714 | 8,813 |
| Local road traffic (vehicles/day) | 665 | 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 Fremont County is about the same as 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.
Education & Households
Fremont County has a education index of D, which means it is barely educated.
| Metric | Fremont County | Idaho Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 19.4% | 27.1% | 31.6% |
| Average household size | 2.88 | 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
Fremont County has a health index of B, which means it is quite healthy.
| Metric | Fremont County | Idaho Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 79.1 | 79.5 | 78.3 |
| Self-rated poor health | 14.6% | 15.6% | 16.3% |
| Smokers | 15.9% | 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).
Fremont County, ID Compared With Nearby Counties
Fremont County, ID is the smallest of the 4 counties compared here, 13,943 residents against a local median of 54,618. The measure that sets Fremont County, ID apart most is median home price: $163,815, 45% below the local median of $295,731.
The counties themselves spread $208,961 on median home price, so Fremont County, ID sits at one end of an already wide local range rather than apart from it. Fremont County, ID has the 4th highest median home price of the 4 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Fremont County, ID | 13,943 | $72,259 #3/4 | $163,815 #4/4 | 17.6 min #3/4 |
| Madison County, ID | 54,618 | $60,340 | $295,731 | 12.0 min |
| Bonneville County, ID | 129,518 | $80,129 | $378,543 | 16.0 min |
| Jefferson County, ID | 33,153 | $86,175 | $169,582 | 22.1 min |
Frequently Asked Questions
Common questions about Fremont County, Idaho.
How big is Fremont County, Idaho by population?
About 13,943 people live in Fremont County, Idaho, in 4,654 households of 2.9 people on average. The median age is 40.1, so residents are older than the U.S. median of 37.3 by about 3 years.
How densely populated is Fremont County, Idaho?
Averaged over its land area, Fremont County, Idaho has 7 people per square mile, a density typical of rural areas. That is about 9% of the U.S. average of 86.
Is Fremont County, Idaho an affordable place to live?
The median home costs 2.3 times the median household income ($163,815 against $72,259), compared with 3.1 times nationally. That is within the traditional rule of thumb of about 3 times income. Median rent of $864 a month takes about 14% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
Is it hard to find a job in Fremont County, Idaho?
Unemployment in Fremont County, Idaho is only 3.9%, well below the U.S. rate of 5.2%, a sign of a tight labor market where employers compete for workers.
How common is a college degree in Fremont County, Idaho?
19.4% of adults in Fremont County, Idaho hold a bachelor's degree or higher (about 1 in 5), well below the U.S. share of 31.6%.
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