Platteville, Wisconsin demographics

Platteville, WI demographics: median age 23.4; 43.7% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Platteville city, Wisconsin · Incorporated city · GEOID 5563250. The survey estimates a population of 11,499 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Platteville is 23.4 years, with a 90% margin of error of 0.8 years. There are 4,134 households (±232). 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 23.4 ±0.8 40.2 ±0.1 38.9 ±0.1
Age groups · B01001 · ACS 2020–2024 Total population: 11,499
Category Count ± MOE Share ± MOE (pp) Wisconsin U.S.
Under 18 1,552 ±276 13.5% ±2.4 pp 21.4% 22.0%
18–34 6,291 ±573 54.7% ±5.0 pp 21.9% 22.8%
35–64 2,370 ±343 20.6% ±3.0 pp 38.2% 38.0%
65 and older 1,286 ±263 11.2% ±2.3 pp 18.5% 17.2%
Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 11,499
Category Count ± MOE Share ± MOE (pp) Wisconsin U.S.
Male 6,320 ±300 55.0% ±2.6 pp 50.1% 49.5%
Female 5,179 ±300 45.0% ±2.6 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: 11,499
Category Count ± MOE Share ± MOE (pp) Wisconsin U.S.
White alone 10,266 ±236 89.3% ±2.0 pp 80.1% 61.0%
Black or African American alone 399 ±201 · low precision 3.5% ±1.7 pp · low precision 6.1% 12.2%
American Indian and Alaska Native alone 21 ±26 · low precision 0.2% ±0.2 pp · low precision 0.8% 0.9%
Asian alone 210 ±95 1.8% ±0.8 pp 3.0% 6.0%
Native Hawaiian and Other Pacific Islander alone 18 ±29 · low precision 0.2% ±0.3 pp · low precision 0.0% 0.2%
Some other race alone 161 ±120 · low precision 1.4% ±1.0 pp · low precision 2.5% 7.1%
Two or more races 424 ±139 3.7% ±1.2 pp 7.6% 12.6%
Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 11,499
Category Count ± MOE Share ± MOE (pp) Wisconsin U.S.
Not Hispanic or Latino 10,945 ±146 95.2% ±1.2 pp 92.0% 80.7%
Hispanic or Latino 554 ±142 4.8% ±1.2 pp 8.0% 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: 4,134
Category Count ± MOE Share ± MOE (pp) Wisconsin U.S.
Married-couple family 1,100 ±187 26.6% ±4.3 pp 46.8% 46.9%
Other family: male householder, no spouse present 84 ±81 · low precision 2.0% ±2.0 pp · low precision 4.5% 5.1%
Other family: female householder, no spouse present 276 ±104 6.7% ±2.5 pp 9.1% 12.2%
Nonfamily: householder living alone 1,790 ±322 43.3% ±7.4 pp 31.5% 28.7%
Nonfamily: householder not living alone 884 ±163 21.4% ±3.8 pp 8.0% 7.0%
Households with children · B11005 · ACS 2020–2024 Households: 4,134
Category Count ± MOE Share ± MOE (pp) Wisconsin U.S.
Households with people under 18 771 ±107 18.7% ±2.4 pp 26.1% 29.5%
Households without people under 18 3,363 ±281 81.3% ±5.0 pp 73.9% 70.5%
Household size · B11016 · ACS 2020–2024 Households: 4,134
Category Count ± MOE Share ± MOE (pp) Wisconsin U.S.
One-person nonfamily households 1,790 ±322 43.3% ±7.4 pp 31.5% 28.7%
Two-person households 1,273 ±242 30.8% ±5.6 pp 37.0% 33.8%
Three-person households 460 ±146 11.1% ±3.5 pp 13.1% 15.3%
Four-person households 265 ±101 6.4% ±2.4 pp 10.9% 12.6%
Five-person households 229 ±126 · low precision 5.5% ±3.0 pp · low precision 4.8% 5.9%
Six-person households 28 ±31 · low precision 0.7% ±0.8 pp · low precision 1.7% 2.2%
Seven or more people 89 ±62 · low precision 2.2% ±1.5 pp · low precision 1.0% 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: 11,499
Category Count ± MOE Share ± MOE (pp) Wisconsin U.S.
Native 11,190 ±188 97.3% ±1.6 pp 94.8% 85.9%
Foreign born 309 ±187 · low precision 2.7% ±1.6 pp · low precision 5.2% 14.1%
Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 11,252
Category Count ± MOE Share ± MOE (pp) Wisconsin U.S.
English only 10,643 ±260 94.6% ±2.1 pp 91.0% 77.7%
Spanish 175 ±98 · low precision 1.6% ±0.9 pp · low precision 4.9% 13.6%
French, Haitian, or Cajun 162 ±164 · low precision 1.4% ±1.5 pp · low precision 0.2% 0.7%
German or other West Germanic 54 ±50 · low precision 0.5% ±0.4 pp · low precision 0.7% 0.5%
Russian, Polish, or other Slavic 0 ±16 · low precision 0.0% ±0.1 pp · low precision 0.3% 0.7%
Other Indo-European 20 ±28 · low precision 0.2% ±0.2 pp · low precision 0.7% 2.0%
Korean 0 ±16 · low precision 0.0% ±0.1 pp · low precision 0.1% 0.3%
Chinese, including Mandarin and Cantonese 58 ±96 · low precision 0.5% ±0.9 pp · low precision 0.3% 1.1%
Vietnamese 0 ±16 · low precision 0.0% ±0.1 pp · low precision 0.1% 0.5%
Tagalog, including Filipino 0 ±16 · low precision 0.0% ±0.1 pp · low precision 0.1% 0.6%
Other Asian and Pacific Island 129 ±124 · low precision 1.1% ±1.1 pp · low precision 1.2% 1.1%
Arabic 0 ±16 · low precision 0.0% ±0.1 pp · low precision 0.1% 0.5%
Other and unspecified 11 ±20 · low precision 0.1% ±0.2 pp · low precision 0.3% 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: 5,063
Category Count ± MOE Share ± MOE (pp) Wisconsin U.S.
Less than high school graduate 227 ±118 · low precision 4.5% ±2.3 pp · low precision 6.4% 10.4%
High school graduate or equivalency 1,061 ±299 21.0% ±5.8 pp 29.4% 26.0%
Some college, no degree 1,192 ±301 23.5% ±5.8 pp 19.5% 19.1%
Associate’s degree 372 ±136 7.3% ±2.7 pp 11.3% 8.8%
Bachelor’s degree 1,118 ±203 22.1% ±3.8 pp 22.0% 21.6%
Graduate or professional degree 1,093 ±309 21.6% ±6.0 pp 11.4% 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: 11,389
Category Count ± MOE Share ± MOE (pp) Wisconsin U.S.
Same house 8,042 ±386 70.6% ±3.3 pp 88.2% 87.7%
Moved within same county 1,132 ±295 9.9% ±2.6 pp 6.2% 6.3%
Moved from a different county in the same state 1,450 ±301 12.7% ±2.6 pp 3.3% 3.1%
Moved from a different state 735 ±214 6.5% ±1.9 pp 2.0% 2.3%
Moved from abroad 30 ±34 · low precision 0.3% ±0.3 pp · low precision 0.3% 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

5.9% of Platteville residents (±1.8 percentage points) had no health insurance coverage when surveyed, compared with 5.2% in Wisconsin and 8.4% nationally. 90.4% 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 Platteville Wisconsin U.S. Compared with Wisconsin
People without health insurance Civilian noninstitutionalized population 5.9% ±1.8 pp 5.2% 8.4% Not statistically different
Households with a broadband subscription Households 90.4% ±4.0 pp 90.3% 91.0% Not statistically different
Veterans Civilian population age 18 and older 3.8% ±1.8 pp 6.2% 6.2% Lower

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 Platteville . 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 Platteville housing and cost context or return to the city profile.

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