Demographics of Otter Tail County, Minnesota

Otter Tail County, Minnesota had 61,041 people on July 1, 2025, by the Census Bureau’s estimate: +943 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.

Otter Tail County, in four figures

61,041
Population: July 1, 2025, Vintage 2025 estimate.; +1.6%
Change since July 2020: +943 people.; 46.2 ±0.3
Median age: ACS 2020–⁠2024.; $72,255 ±$2,093
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.

Otter Tail County, Minnesota's population grew 1.6% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Otter Tail County, Minnesota'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

Otter Tail County, Minnesota's population grew 1.6% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Otter Tail County, Minnesota'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	60,098	100.0	100.0
2021	60,245	100.2	100.2
2022	60,594	100.8	100.7
2023	60,754	101.1	101.6
2024	60,958	101.4	102.5
2025	61,041	101.6	103.1

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Population of Otter Tail County, Minnesota on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	60,098	+4	−39	0	+32
2021	60,245	+147	−193	+8	+295
2022	60,594	+349	−175	+66	+465
2023	60,754	+160	−167	+153	+190
2024	60,958	+204	−196	+198	+213
2025	61,041	+83	−191	+97	+177

Age, 2020–2024

The median age is 46.2 ±0.3: for men 45.1 ±0.4 and for women 47.4 ±0.6. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Otter Tail County by age, ACS 2020–2024
Age	People	Share	Minnesota	United States
Under 5	3,178 ±42	5.3% ±0.1	5.8% ±<0.1	5.6% ±<0.1
5 to 17	9,959 ±327	16.5% ±0.5	17.0% ±0.1	16.3% ±<0.1
18 to 24	3,856 ±250	6.4% ±0.4	8.8% ±0.1	9.1% ±<0.1
25 to 44	12,508 ±355	20.7% ±0.6	26.6% ±0.1	26.9% ±<0.1
45 to 64	15,600 ±375	25.8% ±0.6	24.5% ±0.1	24.8% ±<0.1
65 and over	15,374 ±459	25.4% ±0.8	17.3% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $72,255 ±$2,093, and income per person $39,580 ±$838, in 2024 dollars. The median is $89,062 ±$409 in Minnesota and $80,734 ±$166 in the United States.

Households by income

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Households in Otter Tail County by income, ACS 2020–2024
Household income	Households	Share	Minnesota	United States
Under $25,000	3,604 ±357	14.3% ±1.4	11.7% ±0.2	14.6% ±<0.1
$25,000 to $49,999	4,897 ±396	19.5% ±1.5	14.9% ±0.2	16.7% ±<0.1
$50,000 to $74,999	4,562 ±297	18.1% ±1.1	15.6% ±0.2	15.5% ±<0.1
$75,000 to $99,999	3,257 ±246	12.9% ±1.0	13.2% ±0.1	12.6% ±<0.1
$100,000 to $149,999	4,983 ±304	19.8% ±1.2	19.6% ±0.2	17.5% ±<0.1
$150,000 to $199,999	2,004 ±173	8.0% ±0.7	11.2% ±0.2	9.6% ±<0.1
$200,000 or more	1,850 ±176	7.4% ±0.7	13.8% ±0.1	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 Otter Tail County by age, ACS 2020–2024
Age	Below poverty	Rate	Minnesota	United States
All ages	5,187 ±547	8.7% ±0.9	9.3% ±0.2	12.5% ±0.1
Under 18	1,120 ±186	8.6% ±1.4	10.3% ±0.3	16.1% ±0.1
18 to 59	2,437 ±315	9.1% ±1.2	9.1% ±0.2	11.6% ±0.1
60 and over	1,630 ±217	8.3% ±1.1	8.7% ±0.2	11.0% ±<0.1

Housing, 2020–2024

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Housing in Otter Tail County, ACS 2020–2024
Measure	Otter Tail County	Minnesota	United States
Housing units	36,698 ±91	2,545,030 ±1,535	143,775,355 ±10,234
Occupied	68.6% ±1.0	90.7% ±0.2	89.9% ±0.1
Vacant	31.4% ±1.0	9.3% ±0.2	10.1% ±0.1
Owner occupied	79.5% ±1.3	72.2% ±0.3	65.2% ±0.3
Renter occupied	20.5% ±1.6	27.8% ±0.2	34.8% ±0.1
Median home value	$273,000 ±$6,397	$329,300 ±$903	$332,700 ±$236
Median gross rent	$868 ±$63	$1,280 ±$7	$1,413 ±$2
Median year built	1979 ±1	1979 ±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 Otter Tail County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Minnesota	United States
Hispanic or Latino	2,397 ±0	4.0% ±<0.1	6.4% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	54,701 ±205	90.5% ±0.3	75.9% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	644 ±149	1.1% ±0.2	6.9% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	346 ±98	0.6% ±0.2	5.1% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	123 ±34	0.2% ±0.1	0.7% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 43	0% to 0.1%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	113 to 371	0.2% to 0.6%	0.5% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	2,003 ±248	3.3% ±0.4	4.5% ±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 Otter Tail County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Minnesota	United States
Born in the state	42,384 ±652	70.1% ±1.1	67.1% ±0.2	57.3% ±<0.1
Born in another state	15,895 ±642	26.3% ±1.1	23.4% ±0.1	26.9% ±<0.1
Born a citizen outside the states	374 ±108	0.6% ±0.2	0.9% ±<0.1	1.7% ±<0.1
Born abroad	1,822 ±220	3.0% ±0.4	8.7% ±0.1	14.1% ±<0.1
Naturalized citizens	969 ±157	1.6% ±0.3	5.1% ±0.1	7.4% ±<0.1
Not citizens	853 ±174	1.4% ±0.3	3.6% ±0.1	6.8% ±<0.1

Otter Tail County among the counties of Minnesota

17th of 87 by population, July 2025. Every one is listed on the Minnesota page.

Counties of Minnesota near Otter Tail County in population, July 2025
County	July 2025	Change since 2020
Sherburne County	104,194	+6.8%
Blue Earth County	70,634	+2.1%
Rice County	69,939	+4.2%
Crow Wing County	69,132	+4.3%
Clay County	67,734	+3.6%
Otter Tail County	61,041	+1.6%
Chisago County	59,142	+4.3%
Winona County	50,523	+1.7%
Goodhue County	48,195	+1.3%
Beltrami County	47,055	+1.8%
Itasca County	45,404	+0.8%

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