🇺🇸 United States ZIP Code

STANDARD

19904

Dover

ZIP Code 19904 is a standard zip code serving Dover, Dover, Delaware (DE), in Kent County, United States. It has an estimated population of 34,132 with a median household income of $54,368. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Delaware (DE)
County: Kent
City: Dover
Timezone: America/New_York

Coordinates

Latitude: 39.160500
Longitude: -75.597400

Geographic Details

Land Area: 44.07 mi²
Water Area: 0.30 mi²
Population Density: 774.0 people per mi² (75th percentile)
Bounding Box: 39.245167°N, 39.053232°S, -75.522267°E, -75.672396°W

With 34,132 residents spread across 44.07 square miles, this area has a population density of 774.0 people per square mile.

Demographics

34,132

Population

90th percentile

$54,368

Median Income

60th percentile

$198,200

Median Home Value

70th percentile

44.07 mi²

Land Area

The median household income in 19904 is $54,368, and the median home value is $198,200.

Housing

13,728

Total Units

12,739

Occupied Units

92.8%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Dover, DE.

19901

Dover

19903

Dover

19905

Dover

19906

Dover

Similar ZIP Codes in Delaware

ZIP codes with similar median household income in Delaware.

19943

Felton

$60,628

19960

Lincoln

$50,922

19958

Lewes

$54,938

19930

Bethany Beach

$62,438

19963

Milford

$52,766

19950

Greenwood

$57,857

19975

Selbyville

$53,023

19956

Laurel

$46,892

Frequently Asked Questions

What information is available for each ZIP code?

Each ZIP code page shows city, state, county, geographic coordinates, timezone, population, median household income, median home value, housing units, land area, population density, commute time, educational attainment, area codes, and ZIP code type (Standard, PO Box, or Unique).

What are the different types of ZIP codes?

There are three types of ZIP codes: Standard (residential and commercial delivery areas), PO Box (assigned to post office box sections), and Unique (assigned to a single high-volume address like a government agency or large company). Standard ZIP codes are the most common.

How often is ZIP code data updated?

ZIP code assignments are updated quarterly by the USPS. Demographic data comes from the US Census Bureau's American Community Survey (ACS), which releases new 5-year estimates annually. ZipFYI updates its data to reflect the latest available information.

What is population density and why does it matter?

Population density measures the number of people per square mile in a ZIP code area. It helps identify urban vs. rural areas, affects real estate values, impacts service availability, and is used in market analysis. Dense urban ZIP codes may have 50,000+ people per square mile.

How are ZIP code boundaries determined?

ZIP code boundaries are determined by the USPS based on mail delivery routes, not political or geographic boundaries. They follow carrier routes and may cross city, county, or even state lines. Boundaries can change when the USPS reorganizes delivery operations.

What does median household income tell me about a ZIP code?

Median household income is the middle value when all household incomes in a ZIP code are sorted. Half of households earn more and half earn less. It is a better indicator of typical earnings than average income, which can be skewed by very high or very low outliers.