Cass Lake, Minnesota demographics

Cass Lake, MN demographics: median age 33.6; 21.7% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

Cass Lake has 677 residents. Below 1,000, most survey estimates on this page have wide margins of error, so this detail page is kept for reference but not offered to search engines. The main Cass Lake profile summarizes the measures that can be compared reliably.

ACS 2020–2024 · Cass Lake city, Minnesota · Incorporated city · GEOID 2710252. The survey estimates a population of 635 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Cass Lake is 33.6 years, with a 90% margin of error of 15.3 years. There are 261 households (±60). Age and household distributions show how these totals are composed; they do not establish which neighborhood suits a particular person.

Every count and share is an estimate. “±” is a 90% margin of error (MOE); pp means percentage points. Derived shares use the category count divided by the named universe. Aggregated category MOEs and percentage MOEs are approximate. A margin larger than half its estimate is flagged as low precision. Blank source uncertainty is shown as unavailable, never zero.

Age distribution and sex

City, state and U.S. estimates · ACS 2020–2024
Measure / survey universe City estimate ± MOE State estimate ± MOE U.S. estimate ± MOE
Median age Total population · years 33.6 ±15.3 38.8 ±0.1 38.9 ±0.1
Age groups · B01001 · ACS 2020–2024 Total population: 635
Category Count ± MOE Share ± MOE (pp) Minnesota U.S.
Under 18 223 ±50 35.1% ±3.6 pp 22.9% 22.0%
18–34 115 ±36 18.1% ±4.3 pp 21.8% 22.8%
35–64 163 ±37 25.7% ±2.7 pp 38.0% 38.0%
65 and older 134 ±57 21.1% ±7.9 pp 17.3% 17.2%
Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 635
Category Count ± MOE Share ± MOE (pp) Minnesota U.S.
Male 271 ±60 42.7% ±4.1 pp 50.1% 49.5%
Female 364 ±90 57.3% ±8.3 pp 49.9% 50.5%

The age groups are mutually exclusive and cover the entire population. The sex categories follow this ACS table’s published classification; they are not a survey of gender identity.

Race and Hispanic origin

Race · B02001 · ACS 2020–2024 Total population: 635
Category Count ± MOE Share ± MOE (pp) Minnesota U.S.
White alone 84 ±34 13.2% ±4.7 pp 77.1% 61.0%
Black or African American alone 6 ±8 · low precision 0.9% ±1.2 pp · low precision 7.0% 12.2%
American Indian and Alaska Native alone 404 ±104 63.6% ±10.3 pp 0.9% 0.9%
Asian alone 3 ±4 · low precision 0.5% ±0.6 pp · low precision 5.1% 6.0%
Native Hawaiian and Other Pacific Islander alone 0 ±10 · low precision 0.0% ±1.6 pp · low precision 0.0% 0.2%
Some other race alone 39 ±53 · low precision 6.1% ±8.3 pp · low precision 2.9% 7.1%
Two or more races 99 ±45 15.6% ±6.4 pp 7.0% 12.6%
Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 635
Category Count ± MOE Share ± MOE (pp) Minnesota U.S.
Not Hispanic or Latino 616 ±125 97.0% ±3.3 pp 93.6% 80.7%
Hispanic or Latino 19 ±24 · low precision 3.0% ±3.7 pp · low precision 6.4% 19.3%

Hispanic origin and race are separate questions. People of Hispanic or Latino origin may be of any race and appear in both tables. Do not add the Hispanic share to race shares. Race alone and two-or-more-race groups are the mutually exclusive categories of the race table.

Household types, children and living alone

Household types · B11001 · ACS 2020–2024 Households: 261
Category Count ± MOE Share ± MOE (pp) Minnesota U.S.
Married-couple family 11 ±10 · low precision 4.2% ±3.7 pp · low precision 48.9% 46.9%
Other family: male householder, no spouse present 27 ±13 10.3% ±4.4 pp 4.5% 5.1%
Other family: female householder, no spouse present 92 ±29 35.2% ±7.6 pp 8.9% 12.2%
Nonfamily: householder living alone 89 ±26 34.1% ±6.1 pp 29.7% 28.7%
Nonfamily: householder not living alone 42 ±49 · low precision 16.1% ±18.4 pp · low precision 7.9% 7.0%
Households with children · B11005 · ACS 2020–2024 Households: 261
Category Count ± MOE Share ± MOE (pp) Minnesota U.S.
Households with people under 18 85 ±27 32.6% ±7.1 pp 28.7% 29.5%
Households without people under 18 176 ±58 67.4% ±15.9 pp 71.3% 70.5%
Household size · B11016 · ACS 2020–2024 Households: 261
Category Count ± MOE Share ± MOE (pp) Minnesota U.S.
One-person nonfamily households 89 ±26 34.1% ±6.1 pp 29.7% 28.7%
Two-person households 86 ±52 · low precision 33.0% ±18.5 pp · low precision 35.6% 33.8%
Three-person households 48 ±22 18.4% ±7.5 pp 13.4% 15.3%
Four-person households 14 ±13 · low precision 5.4% ±5.0 pp · low precision 12.3% 12.6%
Five-person households 10 ±13 · low precision 3.8% ±5.1 pp · low precision 5.6% 5.9%
Six-person households 11 ±13 · low precision 4.2% ±5.1 pp · low precision 2.0% 2.2%
Seven or more people 3 ±11 · low precision 1.1% ±4.3 pp · low precision 1.4% 1.4%

A family household contains related people under the Census definition. A nonfamily household can contain one person or unrelated people sharing a home. Households with children can also appear in the household-type and size tables, so those tables must not be added together. Household estimates exclude people living in group quarters from the household universe.

Nativity and languages spoken at home

Nativity · B05002 · ACS 2020–2024 Total population: 635
Category Count ± MOE Share ± MOE (pp) Minnesota U.S.
Native 632 ±128 99.5% ±3.2 pp 91.3% 85.9%
Foreign born 3 ±4 · low precision 0.5% ±0.6 pp · low precision 8.7% 14.1%
Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 604
Category Count ± MOE Share ± MOE (pp) Minnesota U.S.
English only 572 ±119 94.7% ±5.8 pp 87.6% 77.7%
Spanish 6 ±6 · low precision 1.0% ±1.0 pp · low precision 4.2% 13.6%
French, Haitian, or Cajun 0 ±10 · low precision 0.0% ±1.7 pp · low precision 0.3% 0.7%
German or other West Germanic 0 ±10 · low precision 0.0% ±1.7 pp · low precision 0.4% 0.5%
Russian, Polish, or other Slavic 0 ±10 · low precision 0.0% ±1.7 pp · low precision 0.5% 0.7%
Other Indo-European 0 ±10 · low precision 0.0% ±1.7 pp · low precision 0.7% 2.0%
Korean 0 ±10 · low precision 0.0% ±1.7 pp · low precision 0.1% 0.3%
Chinese, including Mandarin and Cantonese 0 ±10 · low precision 0.0% ±1.7 pp · low precision 0.4% 1.1%
Vietnamese 0 ±10 · low precision 0.0% ±1.7 pp · low precision 0.4% 0.5%
Tagalog, including Filipino 0 ±10 · low precision 0.0% ±1.7 pp · low precision 0.2% 0.6%
Other Asian and Pacific Island 3 ±4 · low precision 0.5% ±0.7 pp · low precision 2.4% 1.1%
Arabic 0 ±10 · low precision 0.0% ±1.7 pp · low precision 0.3% 0.5%
Other and unspecified 23 ±13 · low precision 3.8% ±2.0 pp · low precision 2.6% 0.8%

Foreign born means not a U.S. citizen at birth; it includes naturalized citizens. Language categories describe speech at home among people age five and older. A language other than English at home does not establish that someone cannot speak English. This city page uses the published C16001 summary categories because the more detailed B16001 table does not provide these city records in this release.

Educational attainment

Highest completed education · B15003 · ACS 2020–2024 Population age 25 and older: 336
Category Count ± MOE Share ± MOE (pp) Minnesota U.S.
Less than high school graduate 45 ±38 · low precision 13.4% ±10.9 pp · low precision 6.1% 10.4%
High school graduate or equivalency 87 ±30 25.9% ±7.3 pp 23.3% 26.0%
Some college, no degree 77 ±23 22.9% ±5.2 pp 19.5% 19.1%
Associate’s degree 54 ±20 16.1% ±5.0 pp 11.8% 8.8%
Bachelor’s degree 68 ±54 · low precision 20.2% ±15.5 pp · low precision 25.6% 21.6%
Graduate or professional degree 5 ±15 · low precision 1.5% ±4.5 pp · low precision 13.8% 14.1%

The denominator excludes residents under 25. Each person is counted in the highest attainment category they completed. This table does not measure the quality of local schools or the education level of every current student.

Residence one year earlier

Geographic mobility · B07003 · ACS 2020–2024 Population age 1 and older: 629
Category Count ± MOE Share ± MOE (pp) Minnesota U.S.
Same house 532 ±114 84.6% ±6.8 pp 87.8% 87.7%
Moved within same county 22 ±14 · low precision 3.5% ±2.1 pp · low precision 5.7% 6.3%
Moved from a different county in the same state 71 ±43 · low precision 11.3% ±6.5 pp · low precision 4.3% 3.1%
Moved from a different state 4 ±6 · low precision 0.6% ±0.9 pp · low precision 1.8% 2.3%
Moved from abroad 0 ±10 · low precision 0.0% ±1.6 pp · low precision 0.4% 0.6%

These are respondents’ residence patterns one year before their survey response, pooled across the five-year window. They are not a net migration count for 2025. A person can move to a different house within the same city or county; moves within the same county should not automatically be interpreted as new arrivals to the city.

Health insurance, internet access and veterans

16.5% of Cass Lake residents (±4.2 percentage points) had no health insurance coverage when surveyed, compared with 4.7% in Minnesota and 8.4% nationally. 87.7% of households subscribe to broadband of any type, including cellular data plans. A subscription is not the same as available service: the FCC National Broadband Map shows providers at a specific address.

City, state and U.S. shares · ACS 2020–2024
Measure Cass Lake Minnesota U.S. Compared with Minnesota
People without health insurance Civilian noninstitutionalized population 16.5% ±4.2 pp 4.7% 8.4% Higher
Households with a broadband subscription Households 87.7% ±11.8 pp 91.6% 91.0% Not statistically different
Veterans Civilian population age 18 and older 3.6% ±2.3 pp · low precision 5.9% 6.2% Not statistically different

Reading and reusing the estimates

The Census table links above lead to the original detailed tables. Counts, source universes and uncertainty are retained in the source observation download for Cass Lake . Compare these figures with the same survey window; do not compare one city’s five-year estimate with another city’s annual estimate as though they measured the same period. For methods, see uncertainty and denominator calculations.

Read Cass Lake housing and cost context or return to the city profile.

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