US Census Data

ZIP Code 18104

ZIP Code Tabulation Area in Lehigh County, Pennsylvania.

Population
47,999
+6.9%’19–’23
Median household income
$94,279
+27.5%’19–’23
Median home value
$296,800
+28.1%’19–’23

ZIP Code 18104 (Lehigh County, Pennsylvania) is home to about 47,999 residents. The median household income of $94,279 is above the Lehigh County median ($77,493).

Between 2019 and 2023, ZIP Code 18104's population grew 6.9% from 44,908 to 47,999, while its median gross rent rose 25.1% from $1,295 to $1,620.

Owners occupy 69.6% of the area's occupied homes. The median resident is 39.3 years old.

Demographics

ACS 2019–2023
Population
47,999
Median age
39.3 yrs
Median household income
$94,279
Median home value
$296,800
Median gross rent
$1,620
Housing units
18,686
Homeownership rate
69.6%
Bachelor's degree or higher
44.8%
Unemployment rate
5.5%

Trends

ACS 5-year · 2019–2023
Population
44,90847,999
Median household income
$73,943$94,279
Median home value
$231,700$296,800
Median gross rent
$1,295$1,620
YearPopulationMedian household incomeMedian home valueMedian gross rent
201944,908$73,943$231,700$1,295
202044,217$74,960$240,800$1,342
202145,959$76,972$253,400$1,348
202246,259$83,861$280,800$1,507
202347,999$94,279$296,800$1,620

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

CountShare
Under 52,7165.7%
5 to 176,77314.1%
18 to 245,60311.7%
25 to 346,11312.7%
35 to 446,30913.1%
45 to 545,36311.2%
55 to 645,45011.4%
65 to 745,00710.4%
75 and over4,6659.7%

Race & ethnicity

CountShare
White (non-Hispanic)32,41267.5%
Black or African American3,0896.4%
American Indian & Alaska Native490.1%
Asian4,0258.4%
Native Hawaiian & Pacific Islander310.1%
Some other race3280.7%
Two or more races1,1112.3%
Hispanic or Latino (any race)6,95414.5%

Educational attainment (age 25+)

CountShare
No high school diploma2,1876.6%
High school graduate8,87127.0%
Some college or associate's7,11121.6%
Bachelor's degree8,51125.9%
Graduate or professional degree6,22718.9%

Commute to work

Mean travel time to work
22 min

How workers get to work

CountShare
Drove alone16,06770.6%
Carpooled1,7187.5%
Public transit970.4%
Walked7083.1%
Bicycle50.0%
Worked from home3,97717.5%
Other means1860.8%

Travel time

CountShare
Under 15 min6,72535.8%
15 to 29 min7,82541.7%
30 to 44 min2,16511.5%
45 to 59 min6673.6%
60+ min1,3997.4%

Households

Average household size
2.43
Poverty rate
7.6% (3,363 of 44,015)
CountShare
Family households11,57563.8%
Nonfamily households6,56036.2%

Housing

Median year structure built
1971

Occupancy

CountShare
Occupied18,13597.1%
Vacant5512.9%

Tenure (of occupied units)

CountShare
Owner-occupied12,62069.6%
Renter-occupied5,51530.4%

Units in structure

CountShare
1-unit, detached10,27555.0%
1-unit, attached4,02121.5%
2 to 4 units8524.6%
5 to 19 units1,8309.8%
20 or more units1,6869.0%
Mobile home & other220.1%

Geography

ZCTA
18104
Land area
23 sq mi
Water area
0.18 sq mi
Center point
40.6117, -75.5469

Counties this ZIP covers

1

Compare with nearby ZIP codes

5

National ZIP rankings

21

Nearby ZIP codes

5