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ZIP CODE TABULATION AREA

18421

Pennsylvania · 4,603 residents · 37.3 sq mi
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ZIP 18421 is home to 4,603 people in Susquehanna County. Four-year degrees are less common here than nationally, at 20% of adults. 79% of homes are owner-occupied. The typical home is worth $171,400. The foreign-born share is 2%. The median age is 43.2, about 4 years above the US median. Among the 22 ZIP codes in Susquehanna County, 18421 ranks 15th by median household income.

$68,256
US average: $82,259
$33,522
US average: $44,673
$171,400
US average: $376,019
19.5%
US average: 35.6%
Land area
37.3 sq mi
Age, sex & households
Under 18
21.8%
Age 65+
20.9%
48.0%
52.0%
2.37 people
Race & ethnicity · 2024
2024
White, non-Hispanic91.4%(4,206)
Black0.9%(42)
Hispanic / Latino4.5%(208)
Asian0.2%(8)
Other3%(139)
20
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Housing
2.5
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Within Susquehanna County
Income rank vs other ZIPs
LOWEST15TH OF 22HIGHEST
Adjacent ZIPs
18430$92,083
18441$85,938
18446$71,157
Frequently asked

How many people live in ZIP code 18421?

ZIP code 18421 has about 4,603 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 18421?

The typical household in ZIP code 18421 earns about $68,256 a year. Half of households make more than that, and half make less.

Is ZIP code 18421 expensive?

In ZIP code 18421, the median home is worth about $171,400, and the typical rent is about $866 a month.

How educated are people in ZIP code 18421?

About 19.5% of adults age 25 and over in ZIP code 18421 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 18421?

About 13.9% of people in ZIP code 18421 live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR · ZCTA · UPDATED 2024