Marlborough, Missouri demographics

Marlborough, MO demographics: median age 32.3; 35.5% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Marlborough village, Missouri · Incorporated village · GEOID 2946208. The survey estimates a population of 2,157 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Marlborough is 32.3 years, with a 90% margin of error of 8.7 years. There are 1,340 households (±310). 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 32.3 ±8.7 39.0 ±0.2 38.9 ±0.1
Age groups · B01001 · ACS 2020–2024 Total population: 2,157
Category Count ± MOE Share ± MOE (pp) Missouri U.S.
Under 18 171 ±107 · low precision 7.9% ±4.5 pp · low precision 22.3% 22.0%
18–34 982 ±286 45.5% ±5.9 pp 22.3% 22.8%
35–64 683 ±343 · low precision 31.7% ±13.6 pp 37.5% 38.0%
65 and older 321 ±141 14.9% ±5.3 pp 17.9% 17.2%
Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 2,157
Category Count ± MOE Share ± MOE (pp) Missouri U.S.
Male 945 ±311 43.8% ±8.8 pp 49.3% 49.5%
Female 1,212 ±358 56.2% ±7.8 pp 50.7% 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: 2,157
Category Count ± MOE Share ± MOE (pp) Missouri U.S.
White alone 1,573 ±408 72.9% ±26.8 pp 77.5% 61.0%
Black or African American alone 269 ±160 · low precision 12.5% ±6.7 pp · low precision 11.0% 12.2%
American Indian and Alaska Native alone 0 ±12 · low precision 0.0% ±0.6 pp · low precision 0.3% 0.9%
Asian alone 74 ±76 · low precision 3.4% ±3.4 pp · low precision 2.1% 6.0%
Native Hawaiian and Other Pacific Islander alone 0 ±12 · low precision 0.0% ±0.6 pp · low precision 0.1% 0.2%
Some other race alone 0 ±12 · low precision 0.0% ±0.6 pp · low precision 1.9% 7.1%
Two or more races 241 ±242 · low precision 11.2% ±10.8 pp · low precision 7.1% 12.6%
Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 2,157
Category Count ± MOE Share ± MOE (pp) Missouri U.S.
Not Hispanic or Latino 1,960 ±434 90.9% ±31.1 pp 94.8% 80.7%
Hispanic or Latino 197 ±233 · low precision 9.1% ±10.5 pp · low precision 5.2% 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: 1,340
Category Count ± MOE Share ± MOE (pp) Missouri U.S.
Married-couple family 315 ±221 · low precision 23.5% ±15.6 pp · low precision 46.5% 46.9%
Other family: male householder, no spouse present 71 ±80 · low precision 5.3% ±5.8 pp · low precision 4.6% 5.1%
Other family: female householder, no spouse present 135 ±101 · low precision 10.1% ±7.2 pp · low precision 11.0% 12.2%
Nonfamily: householder living alone 687 ±256 51.3% ±15.0 pp 31.1% 28.7%
Nonfamily: householder not living alone 132 ±78 · low precision 9.9% ±5.4 pp · low precision 6.7% 7.0%
Households with children · B11005 · ACS 2020–2024 Households: 1,340
Category Count ± MOE Share ± MOE (pp) Missouri U.S.
Households with people under 18 125 ±68 · low precision 9.3% ±4.6 pp 28.5% 29.5%
Households without people under 18 1,215 ±302 90.7% ±8.2 pp 71.5% 70.5%
Household size · B11016 · ACS 2020–2024 Households: 1,340
Category Count ± MOE Share ± MOE (pp) Missouri U.S.
One-person nonfamily households 687 ±256 51.3% ±15.0 pp 31.1% 28.7%
Two-person households 567 ±265 42.3% ±17.2 pp 35.0% 33.8%
Three-person households 86 ±51 · low precision 6.4% ±3.5 pp · low precision 14.1% 15.3%
Four-person households 0 ±17 · low precision 0.0% ±1.3 pp · low precision 11.6% 12.6%
Five-person households 0 ±17 · low precision 0.0% ±1.3 pp · low precision 5.2% 5.9%
Six-person households 0 ±17 · low precision 0.0% ±1.3 pp · low precision 1.9% 2.2%
Seven or more people 0 ±17 · low precision 0.0% ±1.3 pp · low precision 1.1% 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: 2,157
Category Count ± MOE Share ± MOE (pp) Missouri U.S.
Native 1,979 ±552 91.7% ±9.0 pp 95.5% 85.9%
Foreign born 178 ±118 · low precision 8.3% ±5.0 pp · low precision 4.5% 14.1%
Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 2,139
Category Count ± MOE Share ± MOE (pp) Missouri U.S.
English only 1,988 ±558 92.9% ±9.3 pp 93.3% 77.7%
Spanish 28 ±47 · low precision 1.3% ±2.2 pp · low precision 2.9% 13.6%
French, Haitian, or Cajun 0 ±12 · low precision 0.0% ±0.6 pp · low precision 0.3% 0.7%
German or other West Germanic 0 ±12 · low precision 0.0% ±0.6 pp · low precision 0.5% 0.5%
Russian, Polish, or other Slavic 49 ±81 · low precision 2.3% ±3.7 pp · low precision 0.5% 0.7%
Other Indo-European 0 ±12 · low precision 0.0% ±0.6 pp · low precision 0.6% 2.0%
Korean 0 ±12 · low precision 0.0% ±0.6 pp · low precision 0.1% 0.3%
Chinese, including Mandarin and Cantonese 19 ±29 · low precision 0.9% ±1.3 pp · low precision 0.4% 1.1%
Vietnamese 55 ±70 · low precision 2.6% ±3.2 pp · low precision 0.2% 0.5%
Tagalog, including Filipino 0 ±12 · low precision 0.0% ±0.6 pp · low precision 0.2% 0.6%
Other Asian and Pacific Island 0 ±12 · low precision 0.0% ±0.6 pp · low precision 0.5% 1.1%
Arabic 0 ±12 · low precision 0.0% ±0.6 pp · low precision 0.2% 0.5%
Other and unspecified 0 ±12 · low precision 0.0% ±0.6 pp · low precision 0.4% 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: 1,583
Category Count ± MOE Share ± MOE (pp) Missouri U.S.
Less than high school graduate 20 ±55 · low precision 1.3% ±3.5 pp · low precision 8.1% 10.4%
High school graduate or equivalency 596 ±467 · low precision 37.7% ±26.9 pp · low precision 30.2% 26.0%
Some college, no degree 182 ±139 · low precision 11.5% ±8.0 pp · low precision 20.8% 19.1%
Associate’s degree 223 ±116 · low precision 14.1% ±5.8 pp 8.4% 8.8%
Bachelor’s degree 339 ±143 21.4% ±5.9 pp 19.8% 21.6%
Graduate or professional degree 223 ±110 14.1% ±5.3 pp 12.6% 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: 2,139
Category Count ± MOE Share ± MOE (pp) Missouri U.S.
Same house 1,474 ±491 68.9% ±14.2 pp 87.4% 87.7%
Moved within same county 216 ±161 · low precision 10.1% ±7.0 pp · low precision 6.2% 6.3%
Moved from a different county in the same state 276 ±145 · low precision 12.9% ±5.9 pp 3.6% 3.1%
Moved from a different state 173 ±125 · low precision 8.1% ±5.4 pp · low precision 2.5% 2.3%
Moved from abroad 0 ±12 · low precision 0.0% ±0.6 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

10.6% of Marlborough residents (±7.7 percentage points) had no health insurance coverage when surveyed, compared with 8.8% in Missouri and 8.4% nationally. 99.0% 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 Marlborough Missouri U.S. Compared with Missouri
People without health insurance Civilian noninstitutionalized population 10.6% ±7.7 pp · low precision 8.8% 8.4% Not statistically different
Households with a broadband subscription Households 99.0% ±6.0 pp 89.3% 91.0% Higher
Veterans Civilian population age 18 and older 5.2% ±3.4 pp · low precision 7.3% 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 Marlborough . 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 Marlborough housing and cost context or return to the city profile.

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