Caribou County, ID Demographics

Population 7,162 · Census ACS 2020–24

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Median age by neighborhoodHistory and comparison ↓︎
Caribou County, ID map of median age by neighborhood
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Population and households in Caribou County

Household size in Caribou County

Household size, people per household
PeriodCaribou CountyIdahoU.S.
2006–102.502.722.68
2010–142.512.782.73
2015–192.702.762.71
2020–242.852.792.65
Change+0.36+0.07−0.03
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The typical household in Caribou County holds 2.85 people, more than the U.S. average of 2.65. Household size has climbed from 2.50 in 2006–10, even as the national average fell. Households are largest in the south and smallest in the center.

Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).

Median age in Caribou County

Median age, years
PeriodCaribou CountyIdahoU.S.
2006–1039.735.537.7
2010–1437.936.638.6
2015–1937.337.639.6
2020–2438.438.240.1
Change−1.3+2.7+2.3
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The median resident of Caribou County is 38.4 years old, a few years younger than the national median of 40.1. Since 2006–10, the median age has dropped from 39.7, even as the national median rose. The youngest areas are in the west, the oldest in the south.

Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).

Single-parent households in Caribou County

Single-parent households, % of households
PeriodCaribou CountyIdahoU.S.
2006–108.9%10.0%12.3%
2010–146.7%10.2%12.3%
2015–198.8%9.3%11.6%
2020–246.4%9.3%11.6%
Change−2.6 pts−0.7 pts−0.6 pts
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Single-parent households are relatively rare in Caribou County: 6.4% of households, against 11.6% nationally. The single-parent share has fallen 2.6 points since 2006–10, a much bigger shift than nationally.

Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).

Housing in Caribou County

Renters in Caribou County

Renters, % of occupied homes
PeriodCaribou CountyIdahoU.S.
2006–1020.8%29.0%33.3%
2010–1417.6%30.8%35.6%
2015–1920.7%30.0%36.0%
2020–2418.4%27.9%34.8%
Change−2.4 pts−1.1 pts+1.5 pts
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Caribou County is largely a place of homeowners: only 18.4% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Just over half of owners (51.9%) have paid off their mortgages, well above the national share of 39.8%. The renter share is down 2.4 points from 2006–10, even as the national share rose.

Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).

Vacant homes in Caribou County

Vacant homes, % of all homes
PeriodCaribou CountyIdahoU.S.
2006–1014.1%10.4%11.4%
2010–1415.4%11.0%11.4%
2015–1921.2%10.5%11.1%
2020–2419.7%9.3%9.6%
Change+5.6 pts−1.1 pts−1.8 pts
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Vacancy is high in Caribou County: 19.7% of homes are empty, far above the national rate of 9.6%. In resort and lake areas that usually means seasonal and vacation homes; elsewhere it can point to weak demand. Vacancy has risen 5.6 points since 2006–10, even as the national rate fell.

Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).

Age of homes in Caribou County

Age of homes, median year built
PeriodCaribou CountyIdahoU.S.
2006–10196819821974
2010–14197019841975
2015–19197019861977
2020–24196819891980
Change+0+7+6
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Caribou County is a place of older homes: half were built before 1968, while the national median is 1980. That means established neighborhoods, and more houses that may need updating. The newest homes are mostly in the east, the oldest in the south. Only two of Idaho's 44 counties have older homes.

Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).

Rent in Caribou County

Rent, per month
PeriodCaribou CountyIdahoU.S.
2006–10$428$766$965
2010–14$562$820$1,040
2015–19$589$941$1,213
2020–24$900$1,407$1,571
Change+$472+$641+$606
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Rent in Caribou County runs $900 a month at the median, utilities included, well below the U.S. median of $1,571. Rents are up $472 a month from 2006–10, a 110% jump, faster than rents rose nationally. Rent takes 26.2% of the typical renter's income, comfortably under the 30% mark often used to define affordable rent. The priciest rents are in the west; the most affordable are in the east.

Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).

Education in Caribou County

Bachelor's degrees in Caribou County

Bachelor's degrees, % of adults 25+
PeriodCaribou CountyIdahoU.S.
2006–1016.1%25.0%28.4%
2010–1417.5%25.9%29.6%
2015–1919.8%27.8%32.1%
2020–2416.6%31.7%35.6%
Change+0.5 pts+6.6 pts+7.2 pts
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College degrees are relatively uncommon in Caribou County: 16.6% of adults 25 and older hold a bachelor's or higher, well below the national share of 35.6%. The share with a degree has edged up 0.5 points since 2006–10, a smaller shift than nationally. College graduates are most concentrated in the west and least in the east.

Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

High school graduates in Caribou County

High school graduates, % of adults 25+
PeriodCaribou CountyIdahoU.S.
2006–1088.0%88.7%84.9%
2010–1488.4%89.3%86.1%
2015–1991.3%90.8%87.7%
2020–2490.2%92.1%89.3%
Change+2.2 pts+3.4 pts+4.3 pts
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About as many adults in Caribou County have finished high school as nationally: 90.2%, against 89.3%. The rate is lower than in Idaho as a whole (92.1%). The share with a diploma is up 2.2 points from 2006–10, mirroring the country.

High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

Jobs in Caribou County

Unemployment, % of the labor force
PeriodCaribou CountyIdahoU.S.
2006–103.5%7.0%8.1%
2010–142.9%8.1%9.4%
2015–194.0%4.4%5.6%
2020–241.7%3.8%5.4%
Change−1.8 pts−3.2 pts−2.7 pts
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The job market in Caribou County has been strong: just 1.7% of the labor force was out of work and looking, well below the national rate of 5.4%. Few Idaho counties have lower unemployment: only three of 44. Since 2006–10, unemployment has fallen 1.8 points, mirroring the country.

Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).

Caribou County compared with nearby counties

CountyHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
Caribou County2.8538.46.4%18.4%19.7%1968$90016.6%90.2%1.7%
Lincoln County2.4943.16.7%23.0%15.7%1989$1,16825.7%95.5%1.8%
Power County2.8535.09.4%26.3%7.0%1977$89815.7%88.6%5.9%
Minidoka County2.7537.012.8%30.8%7.5%1979$93515.7%82.7%2.8%
Jerome County3.0736.014.3%24.8%7.1%1981$1,07914.3%72.6%3.8%
Twin Falls County2.7236.713.3%29.5%5.3%1983$1,20423.3%89.7%2.9%
Converse County2.4041.413.2%22.7%13.4%1980$91523.8%94.1%3.7%
Dawes County2.1539.910.9%38.2%13.2%1962$90237.1%96.5%1.9%
Sheridan County2.3146.57.2%25.9%22.2%1949$83924.2%90.3%1.9%
Cherry County2.4243.612.9%38.6%26.2%1966$89525.1%95.8%0.4%
Brown County2.2245.36.4%25.8%22.8%1959$88823.9%92.5%1.6%

All figures 2020–24.

Counties with similar populations: Fall River County, SD · Foster County, ND · Forest County, PA · Ford County, IL · Quitman County, GA · Floyd County, VA · Rains County, TX · Florence County, WI · Fleming County, KY · Ralls County, MO

About these numbers

Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Caribou County. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.

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