Bannock County, Idaho Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Bannock 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
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C
Income Below average
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C
Education Below averageBetter educated than 81% of counties in Idaho
Source: Map AI Methodology
Population: density and quick facts
| Metric | Bannock County | Idaho Avg | U.S. Average |
|---|---|---|---|
| Population | 89,452 | 1,929,983 | 337,468,954 |
| Population density (per sq mi) | 78.0 | 23.1 | 86.4 |
| Population growth (%/yr) | 0.82% | 2.12% | 0.59% |
| Median age | 35.4 | 38.7 | 37.3 |
| Households | 33,589 | 712,816 | 130,235,071 |
Population in Bannock County grew by 11.2% from 2009 to 2024, reaching 89,452 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Bannock County is Gen Z, aged 13–28, at 24.8% of residents. That is 2.0 points above Idaho as a whole.
- Gen Z 13–28 22,184 24.8% +2.0 pts
- Millennials 29–44 18,954 21.2% +0.5 pts
- Gen X 45–60 15,521 17.4% -1.9 pts
- Boomers 61–79 13,611 15.2% -0.8 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 50.1% of the people living in Bannock County and men 49.9%.
- Women 50.1% Idaho 49.6%
- Men 49.9% Idaho 50.4%
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Residents matching this profile
100% of everyone living in Bannock County
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Economy
Bannock County has a the economy index of C, which means it is somewhat prosperous.
| Metric | Bannock County | Idaho Avg | U.S. Average |
|---|---|---|---|
| Median household income | $67,110 | $78,141 | $80,455 |
| Income growth (%/yr) | 5.09% | 5.97% | 4.80% |
| Unemployment rate | 4.3% | 3.7% | 5.2% |
The median household income in Bannock County is about 14% lower than in Idaho.
Housing
| Metric | Bannock County | Idaho Avg | U.S. Average |
|---|---|---|---|
| Median home price | $301,627 | $394,140 | $248,835 |
| Median rent | $960 | $1,236 | $1,407 |
| Homeownership rate | 69.5% | 72.3% | 65.2% |
The median home price in Bannock County is about 26.2 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $960 per month for that long.
Commute Time & Mobility
Commuters in Bannock County spend about 27 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 112 hours, about 4.7 full days, spent commuting.
| Metric | Bannock County | Idaho Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 13.5 | 18.0 | 22.4 |
| Round-trip commute (min) | 27.0 | 35.9 | 44.8 |
| Yearly time spent (hours) | 112 | 150 | 187 |
| Estimated yearly cost | $3,484 | $4,641 | $5,790 |
| Work from home | 11.4% | 13.3% | 15.0% |
| Highway traffic (vehicles/day) | 5,705 | 4,714 | 8,813 |
| Local road traffic (vehicles/day) | 1,124 | 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 Bannock County is 13 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.
Education & Households
Bannock County has a education index of C, which means it is somewhat educated.
| Metric | Bannock County | Idaho Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 26.6% | 27.1% | 31.6% |
| Average household size | 2.59 | 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
Bannock County has a health index of B, which means it is quite healthy.
| Metric | Bannock County | Idaho Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 76.9 | 79.5 | 78.3 |
| Self-rated poor health | 13.6% | 15.6% | 16.3% |
| Smokers | 18.9% | 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).
Bannock County, ID Compared With Nearby Counties
How Bannock County, ID compares with the 1 counties closest to it.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Bannock County, ID | 89,452 | $67,110 #2/2 | $301,627 #2/2 | 13.5 min #1/2 |
| Bingham County, ID | 49,662 | $77,597 | $439,475 | 18.3 min |
Frequently Asked Questions
Common questions about Bannock County, Idaho.
What is the population of Bannock County, Idaho?
About 89,452 people live in Bannock County, Idaho, in 33,589 households of 2.6 people on average. The median age is 35.4, so residents are younger than the U.S. median of 37.3 by about 2 years.
Is Bannock County, Idaho mostly urban or rural?
Averaged over its land area, Bannock County, Idaho has 78 people per square mile, a density typical of rural areas. That is close to the U.S. average of 86.
Is Bannock County, Idaho an affordable place to live?
The median home costs 4.5 times the median household income ($301,627 against $67,110), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $960 a month takes about 17% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
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