Millville, Delaware demographics

Millville, DE demographics: median age 65.1; 43.5% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Millville town, Delaware · Incorporated town · GEOID 1048200. The survey estimates a population of 2,430 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Millville is 65.1 years, with a 90% margin of error of 2.1 years. There are 1,291 households (±193). 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 65.1 ±2.1 41.6 ±0.2 38.9 ±0.1
Age groups · B01001 · ACS 2020–2024 Total population: 2,430
Category Count ± MOE Share ± MOE (pp) Delaware U.S.
Under 18 159 ±102 · low precision 6.5% ±4.1 pp · low precision 20.7% 22.0%
18–34 184 ±93 · low precision 7.6% ±3.6 pp 21.1% 22.8%
35–64 852 ±154 35.1% ±3.0 pp 37.6% 38.0%
65 and older 1,235 ±187 50.8% ±11.2 pp 20.6% 17.2%
Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 2,430
Category Count ± MOE Share ± MOE (pp) Delaware U.S.
Male 1,016 ±167 41.8% ±1.7 pp 48.4% 49.5%
Female 1,414 ±252 58.2% ±4.7 pp 51.6% 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: 2,430
Category Count ± MOE Share ± MOE (pp) Delaware U.S.
White alone 2,131 ±364 87.7% ±5.4 pp 59.9% 61.0%
Black or African American alone 31 ±31 · low precision 1.3% ±1.3 pp · low precision 21.9% 12.2%
American Indian and Alaska Native alone 16 ±24 · low precision 0.7% ±1.0 pp · low precision 0.4% 0.9%
Asian alone 16 ±21 · low precision 0.7% ±0.9 pp · low precision 4.3% 6.0%
Native Hawaiian and Other Pacific Islander alone 0 ±13 · low precision 0.0% ±0.5 pp · low precision 0.0% 0.2%
Some other race alone 74 ±80 · low precision 3.0% ±3.3 pp · low precision 4.6% 7.1%
Two or more races 162 ±125 · low precision 6.7% ±5.0 pp · low precision 8.8% 12.6%
Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 2,430
Category Count ± MOE Share ± MOE (pp) Delaware U.S.
Not Hispanic or Latino 2,241 ±374 92.2% ±4.6 pp 89.0% 80.7%
Hispanic or Latino 189 ±125 · low precision 7.8% ±5.0 pp · low precision 11.0% 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: 1,291
Category Count ± MOE Share ± MOE (pp) Delaware U.S.
Married-couple family 663 ±115 51.4% ±4.5 pp 47.2% 46.9%
Other family: male householder, no spouse present 39 ±47 · low precision 3.0% ±3.6 pp · low precision 4.7% 5.1%
Other family: female householder, no spouse present 107 ±60 · low precision 8.3% ±4.5 pp · low precision 13.2% 12.2%
Nonfamily: householder living alone 426 ±101 33.0% ±6.1 pp 28.5% 28.7%
Nonfamily: householder not living alone 56 ±32 · low precision 4.3% ±2.4 pp · low precision 6.3% 7.0%
Households with children · B11005 · ACS 2020–2024 Households: 1,291
Category Count ± MOE Share ± MOE (pp) Delaware U.S.
Households with people under 18 107 ±68 · low precision 8.3% ±5.1 pp · low precision 27.4% 29.5%
Households without people under 18 1,184 ±172 91.7% ±19.1 pp 72.6% 70.5%
Household size · B11016 · ACS 2020–2024 Households: 1,291
Category Count ± MOE Share ± MOE (pp) Delaware U.S.
One-person nonfamily households 426 ±101 33.0% ±6.1 pp 28.5% 28.7%
Two-person households 688 ±127 53.3% ±5.8 pp 35.9% 33.8%
Three-person households 138 ±70 · low precision 10.7% ±5.2 pp 15.4% 15.3%
Four-person households 35 ±32 · low precision 2.7% ±2.4 pp · low precision 12.3% 12.6%
Five-person households 4 ±15 · low precision 0.3% ±1.1 pp · low precision 4.9% 5.9%
Six-person households 0 ±18 · low precision 0.0% ±1.4 pp · low precision 2.0% 2.2%
Seven or more people 0 ±18 · low precision 0.0% ±1.4 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: 2,430
Category Count ± MOE Share ± MOE (pp) Delaware U.S.
Native 2,254 ±362 92.8% ±1.9 pp 89.3% 85.9%
Foreign born 176 ±93 · low precision 7.2% ±3.6 pp · low precision 10.7% 14.1%
Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 2,320
Category Count ± MOE Share ± MOE (pp) Delaware U.S.
English only 2,139 ±329 92.2% ±20.2 pp 84.9% 77.7%
Spanish 96 ±65 · low precision 4.1% ±2.7 pp · low precision 7.9% 13.6%
French, Haitian, or Cajun 0 ±13 · low precision 0.0% ±0.6 pp · low precision 1.0% 0.7%
German or other West Germanic 0 ±13 · low precision 0.0% ±0.6 pp · low precision 0.5% 0.5%
Russian, Polish, or other Slavic 25 ±39 · low precision 1.1% ±1.7 pp · low precision 0.4% 0.7%
Other Indo-European 34 ±29 · low precision 1.5% ±1.2 pp · low precision 1.7% 2.0%
Korean 0 ±13 · low precision 0.0% ±0.6 pp · low precision 0.2% 0.3%
Chinese, including Mandarin and Cantonese 0 ±13 · low precision 0.0% ±0.6 pp · low precision 0.8% 1.1%
Vietnamese 0 ±13 · low precision 0.0% ±0.6 pp · low precision 0.2% 0.5%
Tagalog, including Filipino 0 ±13 · low precision 0.0% ±0.6 pp · low precision 0.3% 0.6%
Other Asian and Pacific Island 26 ±40 · low precision 1.1% ±1.7 pp · low precision 0.8% 1.1%
Arabic 0 ±13 · low precision 0.0% ±0.6 pp · low precision 0.3% 0.5%
Other and unspecified 0 ±13 · low precision 0.0% ±0.6 pp · low precision 1.1% 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: 2,211
Category Count ± MOE Share ± MOE (pp) Delaware U.S.
Less than high school graduate 70 ±60 · low precision 3.2% ±2.6 pp · low precision 8.3% 10.4%
High school graduate or equivalency 496 ±123 22.4% ±4.4 pp 28.8% 26.0%
Some college, no degree 438 ±102 19.8% ±3.5 pp 18.8% 19.1%
Associate’s degree 245 ±114 11.1% ±4.9 pp 8.3% 8.8%
Bachelor’s degree 544 ±151 24.6% ±5.8 pp 20.4% 21.6%
Graduate or professional degree 418 ±125 18.9% ±4.9 pp 15.3% 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: 2,423
Category Count ± MOE Share ± MOE (pp) Delaware U.S.
Same house 2,060 ±346 85.0% ±4.5 pp 89.3% 87.7%
Moved within same county 20 ±22 · low precision 0.8% ±0.9 pp · low precision 5.3% 6.3%
Moved from a different county in the same state 0 ±13 · low precision 0.0% ±0.5 pp · low precision 1.1% 3.1%
Moved from a different state 343 ±167 14.2% ±6.5 pp 3.9% 2.3%
Moved from abroad 0 ±13 · low precision 0.0% ±0.5 pp · low precision 0.5% 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

3.7% of Millville residents (±2.2 percentage points) had no health insurance coverage when surveyed, compared with 6.3% in Delaware and 8.4% nationally. 96.4% 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 Millville Delaware U.S. Compared with Delaware
People without health insurance Civilian noninstitutionalized population 3.7% ±2.2 pp · low precision 6.3% 8.4% Lower
Households with a broadband subscription Households 96.4% ±2.1 pp 92.4% 91.0% Higher
Veterans Civilian population age 18 and older 7.1% ±2.4 pp 7.4% 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 Millville . 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 Millville housing and cost context or return to the city profile.

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