Demographics of Cass County, Missouri

Cass County, Missouri had 115,859 people on July 1, 2025, by the Census Bureau’s estimate: +7,699 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.

Cass County, in four figures

115,859
Population: July 1, 2025, Vintage 2025 estimate.; +7.1%
Change since July 2020: +7,699 people.; 40.4 ±0.4
Median age: ACS 2020–⁠2024.; $87,535 ±$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.

Cass County, Missouri's population grew 7.1% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Cass County, Missouri'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

Cass County, Missouri's population grew 7.1% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Cass County, Missouri'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	108,160	100.0	100.0
2021	109,808	101.5	100.2
2022	110,369	102.0	100.7
2023	111,737	103.3	101.6
2024	113,944	105.3	102.5
2025	115,859	107.1	103.1

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Population of Cass County, Missouri on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	108,160	+336	+40	0	+290
2021	109,808	+1,648	−71	−7	+1,725
2022	110,369	+561	−148	−3	+759
2023	111,737	+1,368	+15	+37	+1,307
2024	113,944	+2,207	+94	+87	+2,002
2025	115,859	+1,915	+146	−1	+1,781

Age, 2020–2024

The median age is 40.4 ±0.4: for men 39.2 ±0.5 and for women 41.5 ±0.6. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Cass County by age, ACS 2020–2024
Age	People	Share	Missouri	United States
Under 5	6,247 ±44	5.6% ±<0.1	5.8% ±<0.1	5.6% ±<0.1
5 to 17	19,741 ±726	17.8% ±0.7	16.6% ±0.1	16.3% ±<0.1
18 to 24	8,379 ±496	7.6% ±0.4	9.1% ±0.1	9.1% ±<0.1
25 to 44	27,682 ±836	25.0% ±0.8	26.0% ±0.1	26.9% ±<0.1
45 to 64	28,816 ±708	26.0% ±0.6	24.6% ±0.1	24.8% ±<0.1
65 and over	19,908 ±827	18.0% ±0.7	17.9% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $87,535 ±$3,248, and income per person $42,789 ±$1,042, in 2024 dollars. The median is $70,702 ±$325 in Missouri and $80,734 ±$166 in the United States.

Households by income

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Households in Cass County by income, ACS 2020–2024
Household income	Households	Share	Missouri	United States
Under $25,000	3,812 ±528	8.8% ±1.2	15.8% ±0.2	14.6% ±<0.1
$25,000 to $49,999	7,223 ±688	16.7% ±1.6	19.6% ±0.2	16.7% ±<0.1
$50,000 to $74,999	7,443 ±608	17.2% ±1.4	17.4% ±0.2	15.5% ±<0.1
$75,000 to $99,999	5,894 ±552	13.6% ±1.3	13.2% ±0.2	12.6% ±<0.1
$100,000 to $149,999	9,640 ±641	22.3% ±1.5	17.1% ±0.2	17.5% ±<0.1
$150,000 to $199,999	4,864 ±512	11.3% ±1.2	8.2% ±0.1	9.6% ±<0.1
$200,000 or more	4,330 ±414	10.0% ±1.0	8.7% ±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 Cass County by age, ACS 2020–2024
Age	Below poverty	Rate	Missouri	United States
All ages	6,827 ±959	6.2% ±0.9	12.6% ±0.2	12.5% ±0.1
Under 18	2,044 ±466	8.0% ±1.8	15.8% ±0.4	16.1% ±0.1
18 to 59	3,353 ±538	5.8% ±0.9	12.0% ±0.2	11.6% ±0.1
60 and over	1,430 ±229	5.5% ±0.9	10.9% ±0.2	11.0% ±<0.1

Housing, 2020–2024

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Housing in Cass County, ACS 2020–2024
Measure	Cass County	Missouri	United States
Housing units	45,834 ±71	2,825,287 ±1,043	143,775,355 ±10,234
Occupied	94.3% ±1.1	88.8% ±0.2	89.9% ±0.1
Vacant	5.7% ±1.1	11.2% ±0.2	10.1% ±0.1
Owner occupied	75.6% ±1.4	68.1% ±0.3	65.2% ±0.3
Renter occupied	24.4% ±1.8	31.9% ±0.2	34.8% ±0.1
Median home value	$292,400 ±$7,874	$230,300 ±$880	$332,700 ±$236
Median gross rent	$1,205 ±$46	$1,033 ±$6	$1,413 ±$2
Median year built	1992 ±2	1978 ±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 Cass County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Missouri	United States
Hispanic or Latino	6,083 ±0	5.5% ±<0.1	5.2% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	92,652 ±534	83.6% ±0.5	76.3% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	5,052 ±434	4.6% ±0.4	10.9% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	842 ±129	0.8% ±0.1	2.1% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	203 ±76	0.2% ±0.1	0.2% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	110 ±47	0.1% ±<0.1	0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	928 ±413	0.8% ±0.4	0.4% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	4,903 ±586	4.4% ±0.5	4.8% ±0.1	4.3% ±<0.1

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 Cass County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Missouri	United States
Born in the state	67,018 ±1,486	60.5% ±1.3	65.6% ±0.2	57.3% ±<0.1
Born in another state	40,882 ±1,452	36.9% ±1.3	29.1% ±0.1	26.9% ±<0.1
Born a citizen outside the states	929 ±243	0.8% ±0.2	0.8% ±<0.1	1.7% ±<0.1
Born abroad	1,944 ±338	1.8% ±0.3	4.5% ±0.1	14.1% ±<0.1
Naturalized citizens	1,172 ±282	1.1% ±0.3	2.3% ±0.1	7.4% ±<0.1
Not citizens	772 ±216	0.7% ±0.2	2.2% ±0.1	6.8% ±<0.1

Cass County among the counties of Missouri

10th of 115 by population, July 2025. Every one is listed on the Missouri page.

Counties of Missouri near Cass County in population, July 2025
County	July 2025	Change since 2020
St. Louis city	278,144	−7.4%
Clay County	265,032	+4.3%
Jefferson County	233,132	+2.7%
Boone County	191,746	+4.2%
Jasper County	127,428	+3.7%
Cass County	115,859	+7.1%
Platte County	114,400	+6.7%
Franklin County	108,090	+3.1%
Christian County	96,725	+8.3%
Cape Girardeau County	83,999	+2.7%
Buchanan County	83,540	−1.1%

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