Middletown is a town in New Castle County, Delaware, home to about 24,661 people across 13 square miles. Its ZIP code is 19709, and parts of 19734 are in Middletown too.
Homes sold for a median of $205 per square foot in the three months ending August 2026, a seller’s market.
Mostly Middletown
Part is in Middletown, part in Townsend
Each card is that ZIP code’s whole market, including any part outside Middletown. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Middletown’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Philadelphia International Airport (PHL)36 miles away |
|---|---|
| Closer regional airport | Wilmington Airport (ILG)15 miles away |
| Nearest city of 250,000+ | Philadelphia, PA47 miles away |
Straight-line distances from the center of Middletown; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Middletown had 23,192 residents in the 2020 census, up 276% since 2000.
It’s the 4th largest of 79 towns in Delaware by population.
New Castle County grew from 109,697 residents in 1900 to 570,719 in 2020.
New Castle County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 89°F in summer, and winter lows average 25°F. About 47 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Newark Ag Farm, DE weather station (14 miles away).
306,745 jobs at 17,855 businesses in New Castle County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
397 doctors and other health care providers list an office in Middletown.
Nearest hospitals
Providers with an office here
| Primary care doctors | 38 |
|---|---|
| Specialist doctors | 8 |
| Dentists | 27 |
| Nurse practitioners and physician assistants | 99 |
| Mental health providers | 129 |
| Physical and occupational therapists | 76 |
| Optometrists | 8 |
| Chiropractors | 12 |
| Pharmacies | 14 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (6 nearby)
Grocery stores (4 nearby)
Pharmacies (1 nearby)
Libraries (2 nearby)
Theaters and performance venues
Counts are within about 2.5 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Established in 1861.
Notable people born here
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Appoquinimink School District, MOT Charter School, New Castle County Vocational-Technical School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Appoquinimink PreSchool CenterMiddletown | Pre-K | 150 | Special Education | 2.9 mi |
| Brick Mill Early Childhood CenterMiddletown | Pre-K–K | 280 | Public | 1.2 mi |
| Cedar Lane Early Childhood CenterMiddletown | K | 265 | Public | 1.9 mi |
| MOT Charter SchoolMiddletown | K–12 | 1,407 | Charter | 4.8 mi |
| Brick Mill Elementary SchoolMiddletown | 1–5 | 524 | Public | 1.2 mi |
| Bunker Hill Elementary SchoolMiddletown | 1–5 | 566 | Public | 3.5 mi |
| Cedar Lane Elementary SchoolMiddletown | 1–5 | 634 | Public | 1.8 mi |
| Crystal Run Elementary SchoolMiddletown | 1–5 | 427 | Public | 3.8 mi |
| Lorewood Grove Elementary SchoolMiddletown | 1–5 | 492 | Public | 3.9 mi |
| Silver Lake Elementary SchoolMiddletown | 1–5 | 552 | Public | 2.5 mi |
| Meredith (Everett) Middle SchoolMiddletown | 6–8 | 867 | Public | 2.9 mi |
| Redding (Louis L.) Middle SchoolMiddletown | 6–8 | 451 | Public | 2.2 mi |
| Waters (Alfred G.) Middle SchoolMiddletown | 6–8 | 935 | Public | 1.9 mi |
| Appoquinimink High SchoolMiddletown | 9–12 | 1,357 | Public | 3.7 mi |
| Middletown High SchoolMiddletown | 9–12 | 1,231 | Public | 1.9 mi |
| St. Georges Technical High SchoolMiddletown | 9–12 | 1,198 | Career and Technical | 3.7 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| St Annes Episcopal SchoolMiddletown | Pre-K–8 | 256 | Episcopal | 2.5 mi |
| St Andrew's SchoolMiddletown | 9–12 | 320 | Episcopal | 3.0 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Townsend.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.