| ZIP Code | 18103 |
|---|---|
| City | Allentown |
| State | Pennsylvania (PA) |
| County | Lehigh County |
| Area Code | 484/610/835 |
| Elevation | 368 ft |
| Latitude | 40.570308 |
|---|---|
| Longitude | -75.488926 |
| Timezone | New York (DST) |
| FIPS | 42077 |
| ZIP Type | Standard |
| Status | Active |
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 39.8 yrs ↑ 3% since 2019 |
|---|---|
| Avg Household Size | 2.48 |
| Below Poverty | 11.1% ▲ 11% above avg |
| College Grads | 38.1% ≈ Avg |
| Unemployment | 5.8% ▲ 19% above avg |
| No HS Diploma | 524 (1.7%) |
| HS Graduate | 10,939 (36.2%) |
| Some College | 3,688 (12.2%) |
| Associates | 3,551 (11.8%) |
| Bachelors | 2,665 (8.8%) |
| Graduate Degree | 8,832 (29.2%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $72,545 ≈ Avg ↑ 29% since 2019 |
|---|---|
| Median Home Value | $242,400 ▼ 13% below avg ↑ 46% since 2019 |
| Home/Income Ratio | 3.3x (nat avg ~3.5x) |
| Median Rent | $1,333/mo ↑ 23% since 2019 |
| Total Units | 19,769 |
| Vacant Units | 991 |
| Avg HH Size | 2.48 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Summary
| Total Units | 19,769 |
|---|---|
| Vacant | 991 |
| Owner Occupied | 62.0% |
| Renter Occupied | 38.0% |
| Avg HH Size | 2.48 |
ZIP code 18103 is located in Allentown, Pennsylvania, within Lehigh County. With a population of 47,336, this is a highly populated ZIP code with a middle-aged community — the median age is 39.8 years. Economically, 18103 is a solidly middle-class ZIP code: the median household income of $72,545 is near the national average.
Real estate in ZIP code 18103 represents an affordable housing market. The median home value of $242,400 is near the national average. Renters can expect to pay around $1,333 per month in median rent. Homeownership is strong here — 62.0% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 46% since 2019.
The population of 18103 is racially diverse, with White as the largest group at 46.4%. Residents are moderately educated — 38.1% hold a bachelor's degree or higher, which is near the national average. Poverty affects some residents at 11.1%. Household income has grown by 29% since 2019.
The unemployment rate in 18103 stands at 5.8%, which is above the national average. As in most parts of the country, driving alone is the dominant commute mode at 80%.
Overall, ZIP code 18103 in Allentown, PA is characterized as solidly middle-class, moderately educated, a middle-aged community, and predominantly owner-occupied. With 47,336 residents, a median household income of $72,545, and a median home value of $242,400, it offers a clear picture of life in this part of Pennsylvania.