Oneida County, Idaho Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 38th-largest in Idaho
The population of Oneida County, Idaho is 4,681 as of the 2023 American Community Survey, making it the 38th-largest county in Idaho. The median household income is $72,563, the median home value is $228,100, and the median age is 40.2.
The population of Oneida County has grown 16.0% since 2010 (4,290 → 4,976), a +1.07% annualized rate.
4,681
Population
+1.07%
Annual growth
4
People / sq mi
$72,563
Median Income
$228,100
Median Home Value
Oneida County covers 1,199 sq mi of land at 3.9 people per square mile.
About Oneida County, ID
Oneida County is distinguished by its share of foreign-born residents, 69.9% of the population. Oneida County is a county in Idaho with a population of 4,681. It ranks #38 among counties in Idaho by population.
Households take in a median $72,563, comfortably below the US median of $78,538. About 9.7% of residents live below the federal poverty level, below the national 12.4%. The median home value is $228,100, with typical rent around $1,009.
Roughly 26.2% of adults have a bachelor’s, below the national 35.0%. A solid 12.3% of workers are based at home, below the national 14.0%, and the average commute runs about 26 minutes each way.
The large foreign-born share is a defining thread in Oneida County, shaping language, household composition, and the labor force behind the economic figures above.
Oneida County Population History (2010-2024)
The county of Oneida County had a population of 4,290 in 2010 and 4,976 in 2024, a 16.0% growth over 14 years. The peak was 4,976 in 2024. Average annual growth rate: 1.08%.
4,976
Population (2024)
4,290
Population (2010)
4,976
Peak (2024)
1.08%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 4,290 |
| 2011 | 4,232 |
| 2012 | 4,224 |
| 2013 | 4,256 |
| 2014 | 4,177 |
| 2015 | 4,249 |
| 2016 | 4,302 |
| 2017 | 4,393 |
| 2018 | 4,429 |
| 2019 | 4,500 |
| 2020 | 4,564 |
| 2021 | 4,604 |
| 2022 | 4,740 |
| 2023 | 4,955 |
| 2024 | 4,976 |
Race & Ethnicity
| White | 94.1% |
| Black or African American | 0.4% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.4% |
| Two or More Races | 0.0% |
Age & Sex
40.2
Median Age
50.8%
Female
49.2%
Male
19.5%
Age 65+
Age Distribution
Children (under 15): 22.0% · Seniors (65+): 19.5%
Income & Poverty
| Median household income | $72,563$-2,073 vs state |
| Mean household income | $81,664 |
| Per-capita income | $30,895 |
| Poverty rate | 9.7%+2.7% vs state |
| Unemployment rate | 1.0% |
| Employment-to-population | 62.7% |
Top Industries by Employment
The largest employment sector in Oneida County is professional & business services, accounting for 27.6% of workers.
How residents commute
0.0%
Drive alone
1.4%
Carpool
76.7%
Public transit
12.3%
Work from home
26.1 min
Avg commute
Housing
$228,100$-147,900 vs state
Median home value
$1,009
Median rent
87.2%
Homeownership rate
2,062
Total housing units
93.7%
Occupied
6.3%
Vacant
12.8%
Renter-occupied
Social & access
93.0%
With health insurance
92.9%
With broadband internet
69.9%
Foreign-born
7.5%
Veterans (18+)
14.4%
With a disability
92.8%
Speak language other than English at home
Education
94.2%
High School+
26.2%
Bachelor's+
Largest cities in Idaho
Other counties in Idaho
Part of Idaho
Metro areas in Idaho
County rankings
Frequently Asked Questions
Oneida County, Idaho has a population of 4,681 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 38th-largest county in Idaho. Population density is 4 people per square mile.
The population of Oneida County has grown 16.0% since 2010 (4,290 → 4,976), a +1.07% annualized rate.
The median household income in Oneida County, Idaho is $72,563, with mean (average) household income of $81,664 and per-capita income of $30,895. 9.7% of residents live below the federal poverty level.
In Oneida County, the largest racial and ethnic groups are White (94.1%), Hispanic or Latino (2.4%), Black or African American (0.4%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Oneida County, Idaho is 40.2 years. Residents are 50.8% female and 49.2% male.
The median home value in Oneida County is $228,100 and median monthly rent is $1,009. 87.2% of occupied housing units are owner-occupied. The county has 2,062 total housing units, 6.3% of which are vacant.
The largest employment sector in Oneida County, Idaho is professional, scientific, and management services, employing 27.6% of workers. The unemployment rate is 1.0%.
Boise City is among the largest cities associated with Oneida County, Idaho, with a population of 235,701.
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Statewide data for Idaho
Population, race, income, age, and trends across Idaho
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.