Cass County Population

1830–2026

37,743

2026 projection

0.1% since 2020 (decrease)

010K20K30K40K50K1850190019502000

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Cass County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202637,743-930.25%
202537,836-930.25%
202437,929-950.25%
202338,024+2740.73%
202237,750+1780.47%
202137,572-2220.59%
202037,794+1840.49%
201937,610-2750.73%
201837,885+580.15%
201737,827-1000.26%

Showing 10 of 34 years.

Cass County Demographics

41.8median age

Median age

Female41.7 yrs
Male41.8 yrs

Adults

28,997
7,085 seniors (65+) · 24% of adults21,912 other adults

Sex

Female 50% · 18,837Male 50% · 18,843

Population by age

MaleFemale85+ years, male: 36585+ years, female: 66380–84 years, male: 28380–84 years, female: 53575–79 years, male: 55775–79 years, female: 66270–74 years, male: 85870–74 years, female: 83965–69 years, male: 1,11765–69 years, female: 1,20660–64 years, male: 1,44860–64 years, female: 1,32155–59 years, male: 1,22555–59 years, female: 1,17350–54 years, male: 1,30850–54 years, female: 1,06245–49 years, male: 1,40145–49 years, female: 1,28840–44 years, male: 1,17240–44 years, female: 1,33835–39 years, male: 94535–39 years, female: 94030–34 years, male: 1,09530–34 years, female: 99925–29 years, male: 1,01525–29 years, female: 1,21620–24 years, male: 1,10020–24 years, female: 1,00915–19 years, male: 1,31315–19 years, female: 1,19210–14 years, male: 1,29510–14 years, female: 1,2515–9 years, male: 1,2145–9 years, female: 1,1500–4 years, male: 1,1320–4 years, female: 99385+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45005001K1K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 377 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Cass County Income

$56,403median household income

Median household income

$56,403

Half of households earn more, half earn less

Median earnings

$41,411

Typical yearly pay for a worker 25 or older.

Poverty rate

13.2%

About 1 in 8 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Cass County Marital Status

51% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married51%52%50%
Never married27%33%22%
Divorced13%12%15%
Widowed7%3%11%
Separated2%<1%3%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

8 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year