Bannock County vs Twin Falls County

A side-by-side comparison of Bannock County and Twin Falls County: population, income, housing, and more.

Bannock County and Twin Falls County are counties in Idaho. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Twin Falls County has the higher population (92,121 vs 88,457 in Bannock County). Twin Falls County has the higher median household income ($65,338 vs $64,080 in Bannock County). Twin Falls County has the higher median home value ($292,700 vs $267,200 in Bannock County).

Population, income & housing

	Bannock County	Twin Falls County
Population	88,457	92,121
Median age	35.0 yrs	35.8 yrs
Median household income	$64,080	$65,338
Median home value	$267,200	$292,700
Median gross rent	$879	$1,011
Housing units	35,683	35,749
Homeownership rate	68.6%	69.6%
Bachelor's degree or higher	30.2%	23.0%
Unemployment rate	4.6%	3.2%

Trends (ACS 5-year, 2019–2023)

	Bannock County	Twin Falls County
Population	85,765 → 88,457 (+3.1%)	84,869 → 92,121 (+8.5%)
Median household income	$51,734 → $64,080 (+23.9%)	$52,919 → $65,338 (+23.5%)
Median home value	$160,000 → $267,200 (+67.0%)	$166,800 → $292,700 (+75.5%)
Median gross rent	$691 → $879 (+27.2%)	$800 → $1,011 (+26.4%)

Bannock County

Population

85,76588,457

Median household income

$51,734$64,080

Median home value

$160,000$267,200

Median gross rent

$691$879

Twin Falls County

Population

84,86992,121

Median household income

$52,919$65,338

Median home value

$166,800$292,700

Median gross rent

$800$1,011

Age & race/ethnicity

Age distribution (share)

	Bannock County	Twin Falls County
Under 5	6.3%	6.4%
5 to 17	19.2%	20.3%
18 to 24	10.5%	8.7%
25 to 34	14.0%	13.3%
35 to 44	13.6%	13.1%
45 to 54	10.7%	10.7%
55 to 64	10.8%	11.2%
65 to 74	9.5%	9.7%
75 and over	5.4%	6.7%

Race & ethnicity (share)

	Bannock County	Twin Falls County
White (non-Hispanic)	81.1%	76.2%
Black or African American	0.8%	0.7%
American Indian & Alaska Native	2.3%	0.2%
Asian	1.5%	1.3%
Native Hawaiian & Pacific Islander	0.3%	0.3%
Some other race	0.9%	0.3%
Two or more races	3.6%	3.5%
Hispanic or Latino	9.6%	17.5%

Educational attainment (age 25+)

Share of adults 25+

	Bannock County	Twin Falls County
No high school diploma	6.2%	11.3%
High school graduate	25.7%	28.9%
Some college or associate's	37.9%	36.8%
Bachelor's degree	19.5%	13.9%
Graduate or professional degree	10.7%	9.1%

Commute to work

How workers get to work (share)

	Bannock County	Twin Falls County
Drove alone	75.1%	79.5%
Carpooled	9.1%	9.9%
Public transit	1.2%	0.1%
Walked	2.5%	1.2%
Bicycle	0.6%	0.2%
Worked from home	10.5%	8.2%
Other means	1.1%	1.0%

Housing

Units in structure (share)

	Bannock County	Twin Falls County
1-unit, detached	66.6%	75.0%
1-unit, attached	5.1%	3.7%
2 to 4 units	10.8%	8.6%
5 to 19 units	6.0%	3.6%
20 or more units	3.5%	1.6%
Mobile home & other	8.0%	7.5%

Poverty & households

	Bannock County	Twin Falls County
Poverty rate	12.2%	10.7%
Average household size	2.56	2.67
Mean commute (minutes)	18	18
Median year structure built	1975	1980