Middletown, Delaware Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Middletown, Delaware is 24,071 as of the 2023 American Community Survey, making it the 4th-largest city in Delaware. The median household income is $115,252, the median home value is $399,500, and the median age is 38.4.
The population has grown 35.4% since 2010 (18,970 → 25,686).
24,071
Population
1783
People / sq mi
$115,252
Median Income
$399,500
Median Home Value
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Middletown covers 13.5 sq mi of land at 1783 people per square mile.
About Middletown, DE
Middletown is distinguished by its share of foreign-born residents, 53.2% of the population. Middletown is a city in Delaware with a population of 24,071. That makes it one of the ten largest cities in Delaware in the country, at #4 by population.
Households take in a median $115,252, comfortably above the US median of $78,538. Poverty runs at 7.8%, below the national 12.4%. Median home value is $399,500, with typical rent around $1,567.
Educational attainment is on the higher side for US cities — 45.5% of adults hold a four-year degree, above the national 35.0%. A solid 17.5% of workers are based at home, above the national 14.0%, and the average commute runs about 29 minutes each way.
The large foreign-born share is a defining thread in Middletown, shaping language, household composition, and the labor force behind the economic figures above.
Middletown town Population History (2010-2024)
The city of Middletown town had a population of 18,970 in 2010 and 25,686 in 2024, a 35.4% growth over 14 years. The peak was 25,686 in 2024. Average annual growth rate: 2.19%.
25,686
Population (2024)
18,970
Population (2010)
25,686
Peak (2024)
2.19%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 18,970 |
| 2011 | 19,324 |
| 2012 | 19,519 |
| 2013 | 19,739 |
| 2014 | 20,041 |
| 2015 | 20,501 |
| 2016 | 21,055 |
| 2017 | 21,611 |
| 2018 | 22,358 |
| 2019 | 22,900 |
| 2020 | 23,392 |
| 2021 | 24,279 |
| 2022 | 24,755 |
| 2023 | 25,188 |
| 2024 | 25,686 |
Race & Ethnicity
| White | 56.6% |
| Black or African American | 28.1% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.6% |
| Two or More Races | 0.0% |
Economy & Income
$115,252
Median Household Income
$54,362
Per Capita Income
7.8%
Poverty Rate
3.8%
Unemployment Rate
Housing
$399,500
Median Home Value
$1,567
Median Rent
76.3%
Owner-Occupied
Education
95.6%
High School+
45.5%
Bachelor's+
Commute
0.7%
Drive Alone
76.4%
Public Transit
17.5%
Work From Home
29.2 min
Avg Commute
Community Profile
53.2%
Foreign Born
86.1%
Non-English at Home
6.5%
Veterans
12.0%
With Disability
96.9%
Health Insurance
98.2%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 28.5% |
| Information | 13.9% |
| Finance, Insurance & Real Estate | 10.5% |
| Education, Health Care & Social Services | 8.7% |
| Manufacturing | 6.9% |
| Public Administration | 4.0% |
| Retail Trade | 3.8% |
| Construction | 3.0% |
| Transportation & Warehousing | 2.3% |
| Arts, Entertainment & Food Services | 2.0% |
| Agriculture & Mining | 0.4% |
Largest cities in Delaware
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City rankings
Frequently Asked Questions
Middletown, Delaware has a population of 24,071 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 4th-largest city in Delaware.
The median household income in Middletown, Delaware is $115,252, with 7.8% of residents living below the federal poverty level.
The median home value in Middletown, Delaware is $399,500, with median monthly rent at $1,567 and a homeownership rate of 76.3%.
The median age in Middletown, Delaware is 38.4 years. The population is 43.6% male and 56.4% female.
The population has grown 35.4% since 2010 (18,970 → 25,686).
Middletown town, DE Climate
Middletown town, DE has an average annual temperature of 12.5°C (55°F) and receives about 1135 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
12.5°C
Avg Temp
1135
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 0° / 32° | 89 mm |
| February | 1° / 34° | 72 mm |
| March | 6° / 43° | 102 mm |
| April | 11° / 52° | 91 mm |
| May | 17° / 62° | 107 mm |
| June | 22° / 71° | 100 mm |
| July | 25° / 76° | 110 mm |
| August | 24° / 75° | 102 mm |
| September | 20° / 68° | 105 mm |
| October | 14° / 56° | 83 mm |
| November | 8° / 47° | 83 mm |
| December | 3° / 37° | 91 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Middletown town, DE
The most comfortable months to visit Middletown town, DE are typically June, September and August, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 30°C high). The coldest is January (near -4°C low). July is usually the wettest month.
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Statewide data for Delaware
Population, race, income, age, and trends across Delaware
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.