PlainZIP

Port Penn, DE · standard

ZIP Code 19731

New Castle County, Delaware - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

252
102/sq mi
$71,282
Median income
$369,300
Median home value
0.0%
Bachelor's or higher

The verdict

Port Penn pairs a below-median household income with upper-quartile home values, in a rural, homeowner-dominated area.

49th pct
household income, US ZIPs
Top 24%
home value, US ZIPs
102
people per sq mi
92%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 19731 against every reporting US ZIP.

ZIP code 19731 is a sparsely populated ZIP (a standard USPS delivery area) in Port Penn, New Castle County, Delaware, home to just 252 residents across 2.5 square miles, a density of 102 people per square mile, in the New York time zone.

ZIP 19731 lands in the middle-income range, with a median household income of $71,282 (20% below the Delaware average), while per-capita income is $27,471. 4.3% of residents live below the poverty line, and the unemployment rate reads 0.0%. Median home value sits at $369,300 (2% below the state average), median rent at - a month, and owner-occupancy at 92.3%.

Formal educational attainment runs low here: just 0.0% of adults hold a bachelor's degree or higher, the median age is 66.1, and the average commute is -. Beyond these figures, 10 nearby ZIP codes within about 10 miles are surfaced below, along with 6 more sharing New Castle County, letting you compare 19731 to its immediate surroundings rather than a national baseline alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 19731, Port Penn, DE · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

252

Population

2.5

Area (sq mi)

102

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 19731?

66.1

Median Age

46.0%

Male

54.0%

Female

0.0%

Foreign-Born

White 100.0%
African American 0.0%
Asian 0.0%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 0.0%
Hispanic or Latino 0.0%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$71,282

Median Household Income

-20% vs state

$27,471

Per Capita Income

4.3%

Poverty Rate

0.0%

Unemployment Rate

How ZIP 19731 ranks nationally

Port Penn, DE household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$71,282 49th percentile higher than 49% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). This entry sits in this band. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 59.6%
Bachelor's Degree or Higher 0.0%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

235

Total Housing Units

235

Occupied Units

0

Vacant Units

2.79

Avg Household Size

Occupancy Type

Owner 92.3%
Renter 7.7%

$369,300

Median Home Value

-2% vs state

1938

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What businesses operate in this ZIP?

Census Bureau data shows 5 business establishments in ZIP 19731, employing approximately 77 people with a combined annual payroll of $2,677,000.

5

Businesses

77

Employees

$2.7M

Annual Payroll

0

Industry Sectors

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 19731 vs 19706 →

ZIP 19731 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 19731 ranks #9 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 19731 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 19731 ranks #null of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
19706 Delaware City, DE 1,822 3.8 mi
19733 Saint Georges, DE 110 4.4 mi
19709 Middletown, DE 35,107 5.7 mi
19730 Odessa, DE 451 5.6 mi
08038 Hancocks Bridge, NJ 124 5.9 mi
19720 New Castle, DE 59,250 8.9 mi
08070 Pennsville, NJ 13,059 8.3 mi
19701 Bear, DE 39,194 7.7 mi
19734 Townsend, DE 11,651 10.0 mi
19702 Newark, DE 51,899 10.5 mi

More ZIP Codes in New Castle County

19720 standard
New Castle, DE
Pop: 59,250
19702 standard
Newark, DE
Pop: 51,899
19711 standard
Newark, DE
Pop: 51,322
19805 standard
Wilmington, DE
Pop: 40,937
19701 standard
Bear, DE
Pop: 39,194
19808 standard
Wilmington, DE
Pop: 38,442

Related Areas

New Castle County Port Penn, DE Delaware

Frequently Asked Questions

What county is ZIP code 19731 in? ▼
ZIP code 19731 (Port Penn) is located in New Castle County, Delaware. New Castle County contains multiple ZIP codes, see the full list at /counties/new-castle-de.
What is the population of ZIP code 19731? ▼
ZIP code 19731 in Port Penn, DE has a population of 252 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 19731? ▼
The median household income in ZIP 19731 is $71,282, which is 7% below the national average of $76,288.
What is the average home value in ZIP 19731? ▼
The median home value in ZIP 19731 is $369,300, which is 33% above the national average of $278,155.
What is the demographic makeup of ZIP 19731? ▼
The largest racial group in ZIP 19731 is White at 100.0%.
How many businesses are in ZIP code 19731? ▼
ZIP code 19731 has 5 business establishments employing approximately 77 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What percentage of residents own vs. rent in ZIP 19731? ▼
In ZIP code 19731, approximately 92.3% of occupied housing units are owner-occupied and 7.7% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 19731? ▼
The poverty rate in ZIP code 19731 is 4.3% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.