Arimo, Idaho Demographics & Population 2026
During the 2020–2024 ACS period, Arimo, Idaho had a total population of 351, the 164th largest city in Idaho, with a median household income of $67,857, which is 13% lower than the state average. The poverty rate is 18.2%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Arimo Quick Facts
How Arimo Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 329 | 351 | +6.7% |
| Median household income | $65,208 | $67,857 | +4.1% |
| Median home value | $202,000 | $235,700 | +16.7% |
How Arimo Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 36 | National average: 61
Education
Educational Attainment (Adults 25+)
Arimo Rankings in Idaho
Explore Idaho Rankings
Other Cities in Bannock County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Pocatello | 57,635 | $60,418 | 14.8% | $271,000 |
| Chubbuck | 16,126 | $82,977 | 6.0% | $341,700 |
| Fort Hall | 2,654 | $44,514 | 22.6% | $203,300 |
| Tyhee | 1,568 | $93,125 | 11.9% | $461,000 |
| Inkom | 936 | $85,625 | 5.0% | $270,600 |
| McCammon | 909 | $66,250 | 4.8% | $296,300 |
| Downey | 803 | $56,667 | 16.2% | $173,800 |
| Lava Hot Springs | 218 | N/A | 12.5% | $316,700 |
Cities Similar to Arimo
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Albion | 376 | $68,125 | $269,400 | 31.6% | 7.4% |
| Kendrick | 327 | $64,821 | $207,100 | 27.1% | 18.2% |
| Hammett | 319 | N/A | $165,700 | 0.0% | 7.2% |
| Stanley | 319 | N/A | N/A | 77.1% | 21.3% |
| Hollister | 347 | $56,944 | $156,300 | 12.1% | 10.7% |
A note before these figures: with a population of 351, Arimo's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.
Population Overview
Arimo is a small community located in Idaho, within Bannock County. The total population is 351. It ranks as the 164th most populous out of 232 Census-designated places in Idaho.
Age Demographics
The median age in Arimo is 32.3 years. This is 13% lower than the state median of 37.3 years. With 35.9% of the population under 18, Arimo has a notably young demographic profile, suggesting a family-oriented community.
Economy, Income & Housing
The median household income in Arimo is $67,857. This is 13% lower than the state median of $77,800. It is also 16% lower than the national median of $80,734. The poverty rate stands at 18.2%. This is 72% higher than the state poverty rate of 10.6%. The unemployment rate is 4.4%. This is 17% higher than the state rate of 3.7%. The median home value is $235,700. Housing costs are 44% lower than the state median of $418,600. The home-value-to-income ratio is 3.5x. 93.2% of occupied housing units are owner-occupied. This homeownership rate is 29% higher than the state average of 72.1%.
Race & Ethnicity
Arimo has a predominantly White (non-Hispanic) population, comprising 92.6% of all residents. Hispanic or Latino residents account for 1.4%. The Hispanic or Latino population (1.4%) is well below the state average of 13.7%. The Asian population (0.6%) is well below the state average of 1.3%.
Education
24.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 22% lower than the state rate of 31.8%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 97.0%.
Data Sources & Methodology
All demographic data for Arimo, Idaho is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Idaho state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 232 Census-designated places in Idaho. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Arimo, Idaho?
Arimo, Idaho has a population of 351 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Arimo, ID?
The median household income in Arimo is $67,857, which is 16% lower than the national median of $80,734.
What is the poverty rate in Arimo, ID?
The poverty rate in Arimo is 18.2%. This means approximately 64 residents live below the federal poverty line.
What is the racial makeup of Arimo, Idaho?
Arimo's population is 92.6% White, 0.0% Black, 1.4% Hispanic/Latino, and 0.6% Asian.
What is the median home value in Arimo, ID?
The median home value in Arimo is $235,700. The home-value-to-income ratio is 3.5x.
How educated is Arimo, Idaho?
24.8% of adults (25+) in Arimo hold a bachelor's degree or higher, and 4.0% hold a graduate or professional degree.