Zip Code 19709
Middletown, Delaware — New Castle County
📍 ZIP code 19709 is in Middletown, New Castle County, Delaware.
ZIP code 19709 is located in Middletown, New Castle County, Delaware. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 50,542. The area code for ZIP code 19709 is 302.
Quick Answer
Zip code 19709 is in Middletown, Delaware (New Castle County). It has a population of 50,542, median household income of $129,971, and median home value of $444,900.
Population
50,542
Income
$129,971
Home Value
$444,900
Climate
89°F / 25°F
About Zip Code 19709
Zip code 19709 is located in Middletown, Delaware, within New Castle County. Home to approximately 50,542 residents, this area sits at an elevation of 60 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 302.
The median household income is $129,971 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $444,900, and the cost of living index is 153 (53% above the national average of 100).
Summers average a high of 89°F while winters drop to 25°F. The area receives about 47 in of rain and 8 in of snow annually. The zip code covers 79.6 square miles of land area and 6.1 square miles of water.
Key Statistics
50,542
$129,971
$444,900
Eastern (EST/EDT)
302
60 ft
79.6 sq mi
40.2
17,819
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Compare With Nearby Zip Codes
| Metric | 19709 | 19730 | 19733 | 19731 | 19701 | 19706 |
|---|---|---|---|---|---|---|
| City | Middletown, DE | Odessa, DE | Saint Georges, DE | Port Penn, DE | Bear, DE | Delaware City, DE |
| Population | 50,542 | 506 | 182 | 630 | 44,801 | 2,059 |
| Median Income | $129,971 | $81,927 | $0 | $68,832 | $107,856 | $77,143 |
| Home Value | $444,900 | $299,300 | $220,500 | $347,500 | $337,800 | $244,600 |
| Cost of Living | 153 | 108 | 74 | 127 | 126 | 86 |
| Median Age | 40.2 | 38.5 | 51.3 | 67.2 | 41.1 | 40.3 |
Cost of Living
100 = National Average. Middletown's cost of living is 53% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
3.4x
Demographics
Zip code 19709 has a population of 50,542 people with a median age of 40.2. There are 17,819 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Middletown (19709) population trend from 2010 to 2024
↓ -2.9%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
89°F
25°F
47 in
8 in
Middletown experiences warm summers with average highs around 89°F. Winters are cool with lows averaging 25°F. The area receives about 8 in of snow per year.
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Housing & Economy
Median Home Value
$444,900
Median Household Income
$129,971
With 17,819 housing units across 79.6 square miles, 19709 has a housing density of 224 units per square mile. The home price-to-income ratio is 3.4x.
Location & Geography
Latitude
39.4944°
Longitude
-75.6775°
Land Area
79.6 sq mi
Water Area
6.1 sq mi
Nearby Zip Codes
Zip codes closest to 19709 (Middletown, DE) with distances:
All Zip Codes in Middletown, DE
Other zip codes serving Middletown:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 19709's $129,971. A way to compare Middletown to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 19709 (Middletown, DE). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Middletown, Delaware?
Middletown, Delaware uses zip code 19709 along with 1 other zip codes.
What county is zip code 19709 in?
Zip code 19709 is located in New Castle County, Delaware.
What is the population of zip code 19709?
The population of zip code 19709 is 50,542 with a median age of 40.2.
Is 19709 in Middletown, Delaware?
Yes, zip code 19709 is in Middletown, New Castle County, Delaware. The area code is 302.
Frequently Asked Questions
What city is zip code 19709 in?
Zip code 19709 is in Middletown, Delaware. It is part of New Castle County and uses the Eastern (EST/EDT) timezone.
What is zip code 19709?
Zip code 19709 is a U.S. postal code in Middletown, Delaware (New Castle County). It has a population of 50,542 and covers 79.6 square miles.
What is the population of zip code 19709?
The population of zip code 19709 (Middletown, DE) is 50,542 with a median age of 40.2. There are approximately 17,819 housing units in this area.
What is the median income in zip code 19709?
The median household income in zip code 19709 (Middletown, DE) is $129,971 per year. The cost of living index is 153 (100 = national average).
What is the average home price in zip code 19709?
The median home value in zip code 19709 (Middletown, DE) is $444,900. The cost of living index is 153 compared to the national average of 100.
What county is zip code 19709 in?
Zip code 19709 is located in New Castle County, Delaware. The primary city is Middletown.
What is the area code for zip code 19709?
Zip code 19709 in Middletown, DE uses area code 302. It is located in the Eastern (EST/EDT) timezone.
Is zip code 19709 a good place to live?
Zip code 19709 (Middletown, DE) has a cost of living index of 153 (100 = national average), a median household income of $129,971, and median home values of $444,900. The median age is 40.2. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 19709?
The cost of living index for zip code 19709 (Middletown, DE) is 153, where 100 represents the national average. This area is above the national average. Median home value: $444,900.
What schools serve zip code 19709?
Zip code 19709 in Middletown, Delaware is served by the local school district of New Castle County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.