Middletown, Delaware demographics

Middletown, DE demographics: median age 38.7; 44.0% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Middletown town, Delaware · Incorporated town · GEOID 1047030. The survey estimates a population of 24,661 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Middletown is 38.7 years, with a 90% margin of error of 2.3 years. There are 9,013 households (±559). 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	38.7 ±2.3	41.6 ±0.2	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 24,661
Category	Count ± MOE	Share ± MOE (pp)	Delaware	U.S.
Under 18	6,803 ±1,030	27.6% ±4.2 pp	20.7%	22.0%
18–34	4,442 ±720	18.0% ±2.9 pp	21.1%	22.8%
35–64	9,610 ±994	39.0% ±4.0 pp	37.6%	38.0%
65 and older	3,806 ±704	15.4% ±2.9 pp	20.6%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 24,661
Category	Count ± MOE	Share ± MOE (pp)	Delaware	U.S.
Male	10,826 ±603	43.9% ±2.4 pp	48.4%	49.5%
Female	13,835 ±599	56.1% ±2.4 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: 24,661
Category	Count ± MOE	Share ± MOE (pp)	Delaware	U.S.
White alone	12,810 ±1,370	51.9% ±5.6 pp	59.9%	61.0%
Black or African American alone	7,790 ±1,488	31.6% ±6.0 pp	21.9%	12.2%
American Indian and Alaska Native alone	0 ±24 · low precision	0.0% ±0.1 pp · low precision	0.4%	0.9%
Asian alone	1,024 ±333	4.2% ±1.4 pp	4.3%	6.0%
Native Hawaiian and Other Pacific Islander alone	0 ±24 · low precision	0.0% ±0.1 pp · low precision	0.0%	0.2%
Some other race alone	922 ±870 · low precision	3.7% ±3.5 pp · low precision	4.6%	7.1%
Two or more races	2,115 ±884	8.6% ±3.6 pp	8.8%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 24,661
Category	Count ± MOE	Share ± MOE (pp)	Delaware	U.S.
Not Hispanic or Latino	23,195 ±696	94.1% ±2.8 pp	89.0%	80.7%
Hispanic or Latino	1,466 ±688	5.9% ±2.8 pp	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: 9,013
Category	Count ± MOE	Share ± MOE (pp)	Delaware	U.S.
Married-couple family	4,460 ±504	49.5% ±4.7 pp	47.2%	46.9%
Other family: male householder, no spouse present	189 ±136 · low precision	2.1% ±1.5 pp · low precision	4.7%	5.1%
Other family: female householder, no spouse present	2,001 ±451	22.2% ±4.8 pp	13.2%	12.2%
Nonfamily: householder living alone	1,874 ±609	20.8% ±6.6 pp	28.5%	28.7%
Nonfamily: householder not living alone	489 ±289 · low precision	5.4% ±3.2 pp · low precision	6.3%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 9,013
Category	Count ± MOE	Share ± MOE (pp)	Delaware	U.S.
Households with people under 18	3,534 ±369	39.2% ±3.3 pp	27.4%	29.5%
Households without people under 18	5,479 ±768	60.8% ±7.6 pp	72.6%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 9,013
Category	Count ± MOE	Share ± MOE (pp)	Delaware	U.S.
One-person nonfamily households	1,874 ±609	20.8% ±6.6 pp	28.5%	28.7%
Two-person households	2,819 ±547	31.3% ±5.7 pp	35.9%	33.8%
Three-person households	2,035 ±441	22.6% ±4.7 pp	15.4%	15.3%
Four-person households	1,725 ±382	19.1% ±4.1 pp	12.3%	12.6%
Five-person households	360 ±178	4.0% ±2.0 pp	4.9%	5.9%
Six-person households	24 ±43 · low precision	0.3% ±0.5 pp · low precision	2.0%	2.2%
Seven or more people	176 ±139 · low precision	2.0% ±1.5 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: 24,661
Category	Count ± MOE	Share ± MOE (pp)	Delaware	U.S.
Native	22,011 ±706	89.3% ±2.9 pp	89.3%	85.9%
Foreign born	2,650 ±703	10.7% ±2.9 pp	10.7%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 23,757
Category	Count ± MOE	Share ± MOE (pp)	Delaware	U.S.
English only	20,444 ±1,018	86.1% ±4.1 pp	84.9%	77.7%
Spanish	1,165 ±676 · low precision	4.9% ±2.8 pp · low precision	7.9%	13.6%
French, Haitian, or Cajun	487 ±205	2.0% ±0.9 pp	1.0%	0.7%
German or other West Germanic	17 ±27 · low precision	0.1% ±0.1 pp · low precision	0.5%	0.5%
Russian, Polish, or other Slavic	111 ±113 · low precision	0.5% ±0.5 pp · low precision	0.4%	0.7%
Other Indo-European	465 ±272 · low precision	2.0% ±1.1 pp · low precision	1.7%	2.0%
Korean	0 ±24 · low precision	0.0% ±0.1 pp · low precision	0.2%	0.3%
Chinese, including Mandarin and Cantonese	48 ±54 · low precision	0.2% ±0.2 pp · low precision	0.8%	1.1%
Vietnamese	35 ±53 · low precision	0.1% ±0.2 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	87 ±95 · low precision	0.4% ±0.4 pp · low precision	0.3%	0.6%
Other Asian and Pacific Island	185 ±189 · low precision	0.8% ±0.8 pp · low precision	0.8%	1.1%
Arabic	19 ±36 · low precision	0.1% ±0.2 pp · low precision	0.3%	0.5%
Other and unspecified	694 ±448 · low precision	2.9% ±1.9 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: 16,145
Category	Count ± MOE	Share ± MOE (pp)	Delaware	U.S.
Less than high school graduate	552 ±227	3.4% ±1.4 pp	8.3%	10.4%
High school graduate or equivalency	3,689 ±756	22.8% ±4.6 pp	28.8%	26.0%
Some college, no degree	2,811 ±562	17.4% ±3.4 pp	18.8%	19.1%
Associate’s degree	1,984 ±535	12.3% ±3.3 pp	8.3%	8.8%
Bachelor’s degree	4,199 ±580	26.0% ±3.4 pp	20.4%	21.6%
Graduate or professional degree	2,910 ±565	18.0% ±3.4 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: 24,478
Category	Count ± MOE	Share ± MOE (pp)	Delaware	U.S.
Same house	22,129 ±721	90.4% ±2.9 pp	89.3%	87.7%
Moved within same county	989 ±495 · low precision	4.0% ±2.0 pp · low precision	5.3%	6.3%
Moved from a different county in the same state	237 ±232 · low precision	1.0% ±0.9 pp · low precision	1.1%	3.1%
Moved from a different state	882 ±473 · low precision	3.6% ±1.9 pp · low precision	3.9%	2.3%
Moved from abroad	241 ±259 · low precision	1.0% ±1.1 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

2.2% of Middletown residents (±0.9 percentage points) had no health insurance coverage when surveyed, compared with 6.3% in Delaware and 8.4% nationally. 96.7% 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	Middletown	Delaware	U.S.	Compared with Delaware
People without health insurance Civilian noninstitutionalized population	2.2% ±0.9 pp	6.3%	8.4%	Lower
Households with a broadband subscription Households	96.7% ±1.6 pp	92.4%	91.0%	Higher
Veterans Civilian population age 18 and older	5.5% ±1.7 pp	7.4%	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 Middletown . 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 Middletown housing and cost context or return to the city profile.