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ZIP CODE TABULATION AREA

18104

Pennsylvania · 48,683 residents · 22.952 sq mi
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ZIP 18104 is wealthier than most US places, with a median household income of $94,601. Population has held roughly steady since 2024. 46% of adults hold a bachelor's degree or higher. Median home value is $336,400. Among the 25 ZIP codes in Lehigh County, 18104 ranks 12th by median household income.

$94,601
US average: $82,259
$336,400
US average: $376,019
46.1%
US average: 35.6%
Age, sex & households
Under 18
19.3%
Age 65+
20.5%
47.5%
52.5%
2.44 people
Race & ethnicity · 2024
2024
White, non-Hispanic66.1%(32,198)
Black6.7%(3,253)
Hispanic / Latino17.1%(8,313)
Asian7%(3,428)
Other3.1%(1,491)
Diversity Score65.4%(31,830)
Housing
Commute & vehicles
Work & employment
People & community
Affordability & inequality
Within Lehigh County
Income rank vs other ZIPs
LOWEST12TH OF 25HIGHEST
Adjacent ZIPs
18018$75,417
18031$113,625
18032$81,098
18034$153,200
Frequently asked

How many people live in ZIP code 18104?

ZIP code 18104 has about 48,683 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 18104?

The typical household in ZIP code 18104 earns about $94,601 a year. Half of households make more than that, and half make less.

Is ZIP code 18104 expensive?

In ZIP code 18104, the median home is worth about $336,400, and the typical rent is about $1,637 a month.

How educated are people in ZIP code 18104?

About 46.1% of adults age 25 and over in ZIP code 18104 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 18104?

About 8.3% of people in ZIP code 18104 live below the federal poverty line.

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