Demographics of Latah County, Idaho

Latah County, Idaho had 41,842 people on July 1, 2025, by the Census Bureau’s estimate: +2,209 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Latah County, in four figures

41,842
Population: July 1, 2025, Vintage 2025 estimate.; +5.6%
Change since July 2020: +2,209 people.; 30.6 ±0.3
Median age: ACS 2020–⁠2024.; $65,424 ±$3,248
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

Latah County, Idaho's population grew 5.6% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Latah County, Idaho's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

U.S. Census Bureau — Census Bureau population estimates — counties and Puerto Rico municipios, with components of change

About this chart

The figures

Latah County, Idaho's population grew 5.6% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Latah County, Idaho's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	39,633	100.0	100.0
2021	40,403	101.9	100.2
2022	41,211	104.0	100.7
2023	41,476	104.7	101.6
2024	41,738	105.3	102.5
2025	41,842	105.6	103.1

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Population of Latah County, Idaho on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	39,633	+112	+44	+4	+53
2021	40,403	+770	+149	+51	+556
2022	41,211	+808	+130	+388	+317
2023	41,476	+265	+174	+225	−129
2024	41,738	+262	+200	+172	−109
2025	41,842	+104	+210	+126	−232

Age, 2020–2024

The median age is 30.6 ±0.3: for men 29.8 ±0.4 and for women 31.3 ±0.5. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Latah County by age, ACS 2020–2024
Age	People	Share	Idaho	United States
Under 5	2,006 ±74	4.9% ±0.2	5.9% ±<0.1	5.6% ±<0.1
5 to 17	5,742 ±362	14.0% ±0.9	18.2% ±0.2	16.3% ±<0.1
18 to 24	9,171 ±645	22.3% ±1.6	9.8% ±0.1	9.1% ±<0.1
25 to 44	10,332 ±389	25.2% ±0.9	26.1% ±0.2	26.9% ±<0.1
45 to 64	7,720 ±326	18.8% ±0.8	23.0% ±0.2	24.8% ±<0.1
65 and over	6,078 ±374	14.8% ±0.9	17.0% ±0.2	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $65,424 ±$3,248, and income per person $36,063 ±$2,098, in 2024 dollars. The median is $77,800 ±$743 in Idaho and $80,734 ±$166 in the United States.

Households by income

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Households in Latah County by income, ACS 2020–2024
Household income	Households	Share	Idaho	United States
Under $25,000	2,934 ±405	18.0% ±2.5	12.5% ±0.3	14.6% ±<0.1
$25,000 to $49,999	3,214 ±403	19.8% ±2.5	17.6% ±0.4	16.7% ±<0.1
$50,000 to $74,999	3,070 ±389	18.9% ±2.4	18.1% ±0.4	15.5% ±<0.1
$75,000 to $99,999	2,294 ±319	14.1% ±1.9	14.7% ±0.4	12.6% ±<0.1
$100,000 to $149,999	2,653 ±310	16.3% ±1.9	19.3% ±0.4	17.5% ±<0.1
$150,000 to $199,999	1,040 ±199	6.4% ±1.2	8.7% ±0.3	9.6% ±<0.1
$200,000 or more	1,065 ±173	6.5% ±1.1	9.2% ±0.3	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Latah County by age, ACS 2020–2024
Age	Below poverty	Rate	Idaho	United States
All ages	6,545 ±707	17.6% ±1.9	10.6% ±0.3	12.5% ±0.1
Under 18	984 ±285	13.1% ±3.7	12.4% ±0.5	16.1% ±0.1
18 to 59	5,031 ±513	23.3% ±2.2	10.4% ±0.3	11.6% ±0.1
60 and over	530 ±139	6.6% ±1.7	9.1% ±0.4	11.0% ±<0.1

Housing, 2020–2024

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Housing in Latah County, ACS 2020–2024
Measure	Latah County	Idaho	United States
Housing units	17,591 ±57	795,014 ±223	143,775,355 ±10,234
Occupied	92.5% ±1.6	89.7% ±0.3	89.9% ±0.1
Vacant	7.5% ±1.6	10.3% ±0.3	10.1% ±0.1
Owner occupied	58.7% ±1.9	72.1% ±0.4	65.2% ±0.3
Renter occupied	41.3% ±2.2	27.9% ±0.4	34.8% ±0.1
Median home value	$368,600 ±$12,083	$418,600 ±$2,550	$332,700 ±$236
Median gross rent	$929 ±$32	$1,238 ±$16	$1,413 ±$2
Median year built	1980 ±2	1991 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Latah County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Idaho	United States
Hispanic or Latino	2,120 ±0	5.2% ±<0.1	13.6% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	34,673 ±474	84.5% ±1.2	78.6% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	401 ±83	1.0% ±0.2	0.7% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	843 ±185	2.1% ±0.5	1.3% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	190 ±73	0.5% ±0.2	0.7% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	76 ±23	0.2% ±0.1	0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	111 to 339	0.3% to 0.8%	0.6% ±0.1	0.6% ±<0.1
Two or more races, not Hispanic	2,521 ±483	6.1% ±1.2	4.2% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Latah County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Idaho	United States
Born in the state	15,968 ±804	38.9% ±2.0	43.9% ±0.3	57.3% ±<0.1
Born in another state	22,989 ±897	56.0% ±2.2	49.1% ±0.3	26.9% ±<0.1
Born a citizen outside the states	494 ±165	1.2% ±0.4	1.0% ±0.1	1.7% ±<0.1
Born abroad	1,598 ±317	3.9% ±0.8	5.9% ±0.2	14.1% ±<0.1
Naturalized citizens	716 ±185	1.7% ±0.5	2.7% ±0.1	7.4% ±<0.1
Not citizens	882 ±280	2.1% ±0.7	3.2% ±0.2	6.8% ±<0.1

Latah County among the counties of Idaho

11th of 44 by population, July 2025. Every one is listed on the Idaho page.

Counties of Idaho near Latah County in population, July 2025
County	July 2025	Change since 2020
Bannock County	91,591	+4.9%
Madison County	55,172	+4.2%
Bonner County	54,420	+14.8%
Bingham County	51,153	+6.4%
Nez Perce County	42,905	+1.8%
Latah County	41,842	+5.6%
Jefferson County	35,297	+13.6%
Elmore County	29,465	+2.8%
Payette County	27,824	+8.8%
Cassia County	26,397	+6.6%
Jerome County	26,362	+8.6%

Elsewhere on the site

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Data retrieved September 25, 2026