Demographics of Miller County, Missouri

Miller County, Missouri had 25,817 people on July 1, 2025, by the Census Bureau’s estimate: +1,045 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.

Miller County, in four figures

25,817
Population: July 1, 2025, Vintage 2025 estimate.; +4.2%
Change since July 2020: +1,045 people.; 41.3 ±0.9
Median age: ACS 2020–⁠2024.; $56,736 ±$5,476
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.

Miller County, Missouri's population grew 4.2% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Miller 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

Miller County, Missouri's population grew 4.2% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Miller 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	24,772	100.0	100.0
2021	24,945	100.7	100.2
2022	25,373	102.4	100.7
2023	25,560	103.2	101.6
2024	25,683	103.7	102.5
2025	25,817	104.2	103.1

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Population of Miller 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	24,772	+48	+2	0	+43
2021	24,945	+173	−59	+1	+222
2022	25,373	+428	−79	−3	+492
2023	25,560	+187	−8	0	+195
2024	25,683	+123	−29	+46	+108
2025	25,817	+134	−34	+23	+146

Age, 2020–2024

The median age is 41.3 ±0.9: for men 40.4 ±1.0 and for women 42.5 ±0.9. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Miller County by age, ACS 2020–2024
Age	People	Share	Missouri	United States
Under 5	1,502 ±65	5.9% ±0.3	5.8% ±<0.1	5.6% ±<0.1
5 to 17	4,367 ±281	17.3% ±1.1	16.6% ±0.1	16.3% ±<0.1
18 to 24	1,880 ±202	7.4% ±0.8	9.1% ±0.1	9.1% ±<0.1
25 to 44	5,905 ±261	23.4% ±1.0	26.0% ±0.1	26.9% ±<0.1
45 to 64	6,543 ±386	25.9% ±1.5	24.6% ±0.1	24.8% ±<0.1
65 and over	5,072 ±378	20.1% ±1.5	17.9% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $56,736 ±$5,476, and income per person $30,419 ±$1,715, 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 Miller County by income, ACS 2020–2024
Household income	Households	Share	Missouri	United States
Under $25,000	2,076 ±336	21.1% ±3.4	15.8% ±0.2	14.6% ±<0.1
$25,000 to $49,999	2,358 ±326	23.9% ±3.2	19.6% ±0.2	16.7% ±<0.1
$50,000 to $74,999	1,674 ±251	17.0% ±2.5	17.4% ±0.2	15.5% ±<0.1
$75,000 to $99,999	1,378 ±229	14.0% ±2.3	13.2% ±0.2	12.6% ±<0.1
$100,000 to $149,999	1,465 ±232	14.9% ±2.3	17.1% ±0.2	17.5% ±<0.1
$150,000 to $199,999	463 ±130	4.7% ±1.3	8.2% ±0.1	9.6% ±<0.1
$200,000 or more	443 ±105	4.5% ±1.1	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 Miller County by age, ACS 2020–2024
Age	Below poverty	Rate	Missouri	United States
All ages	3,573 ±649	14.4% ±2.6	12.6% ±0.2	12.5% ±0.1
Under 18	1,068 ±361	18.4% ±6.0	15.8% ±0.4	16.1% ±0.1
18 to 59	1,747 ±350	14.6% ±2.8	12.0% ±0.2	11.6% ±0.1
60 and over	758 ±187	10.7% ±2.6	10.9% ±0.2	11.0% ±<0.1

Housing, 2020–2024

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Housing in Miller County, ACS 2020–2024
Measure	Miller County	Missouri	United States
Housing units	12,541 ±37	2,825,287 ±1,043	143,775,355 ±10,234
Occupied	78.6% ±2.3	88.8% ±0.2	89.9% ±0.1
Vacant	21.4% ±2.2	11.2% ±0.2	10.1% ±0.1
Owner occupied	73.9% ±2.7	68.1% ±0.3	65.2% ±0.3
Renter occupied	26.1% ±3.4	31.9% ±0.2	34.8% ±0.1
Median home value	$192,600 ±$15,880	$230,300 ±$880	$332,700 ±$236
Median gross rent	$763 ±$35	$1,033 ±$6	$1,413 ±$2
Median year built	1985 ±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 Miller County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Missouri	United States
Hispanic or Latino	547 ±0	2.2% ±<0.1	5.2% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	23,586 ±101	93.3% ±0.4	76.3% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	279 ±70	1.1% ±0.3	10.9% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	42 to 150	0.2% to 0.6%	2.1% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	12 to 54	< 0.1% to 0.2%	0.2% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 29	0% to 0.1%	0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	4 to 136	< 0.1% to 0.5%	0.4% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	646 ±122	2.6% ±0.5	4.8% ±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 Miller County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Missouri	United States
Born in the state	19,024 ±555	75.3% ±2.2	65.6% ±0.2	57.3% ±<0.1
Born in another state	5,568 ±564	22.0% ±2.2	29.1% ±0.1	26.9% ±<0.1
Born a citizen outside the states	297 ±129	1.2% ±0.5	0.8% ±<0.1	1.7% ±<0.1
Born abroad	380 ±151	1.5% ±0.6	4.5% ±0.1	14.1% ±<0.1
Naturalized citizens	49 to 165	0.2% to 0.7%	2.3% ±0.1	7.4% ±<0.1
Not citizens	126 to 420	0.5% to 1.7%	2.2% ±0.1	6.8% ±<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%.

Miller County among the counties of Missouri

42nd of 115 by population, July 2025. Every one is listed on the Missouri page.

Counties of Missouri near Miller County in population, July 2025
County	July 2025	Change since 2020
Stone County	32,503	+4.1%
Marion County	28,525	+0.2%
Stoddard County	28,284	−1.3%
Dunklin County	26,855	−4.8%
Texas County	25,994	+6.9%
Miller County	25,817	+4.2%
Adair County	25,684	+1.6%
Audrain County	24,528	−1.0%
Randolph County	24,513	+0.2%
McDonald County	23,992	+3.1%
Washington County	23,810	+1.6%

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