ZIP Code 18102
standardSource:
Allentown · Lehigh County · Pennsylvania
- Population
- 49,779
- Median income
- $43,085
- Median home value
- $163,400
- Bachelor's or higher
- 11.6%
- Land area
- 7.8 sq mi
6,414/sq mi
▼ 44% vs US
higher than 8% of US ZIPs
▼ 41% vs US
higher than 31% of US ZIPs
Median age 31.9
New York
ZIP code 18102 in Allentown, Pennsylvania has a population of 49,779. The median household income is $43,085, which is 44% below the national average. Median home value is $163,400, 41% below the US average. 11.6% of residents hold a bachelor's degree or higher.
ZIP code 18102 is classified by USPS as a standard delivery area and covers roughly 7.8 square miles in Allentown, Lehigh County, Pennsylvania. The area is home to 49,779 residents, producing a population density of 6,414 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 18102 against Pennsylvania and the nation.
On the economic side, the median household income for ZIP 18102 sits at $43,085 (45% below the Pennsylvania average), while per-capita income is $19,885. The poverty rate stands at 29.2% and the unemployment rate at 10.9%. On housing, the median home value is $163,400 (28% below the state average) with median rent at $1,248 per month, and 32.1% of occupied units are owner-occupied, a direct signal of whether 18102 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 11.6% of adults hold a bachelor's degree or higher, the median age is 31.9, and the average commute is 25 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Lehigh County, so you can benchmark 18102 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 18102
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 18102.
- Retail trade
Retail trade
108 establishments
- Health care and social assistance
Health care and social assistance
91 establishments
- Other services (except public administration)
Other services (except public administration)
90 establishments
- Accommodation and food services
Accommodation and food services
49 establishments
- Professional, scientific, and technical services 42
Professional, scientific, and technical services
42 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 18102, Allentown, PA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
49,779
Population
7.8
Area (sq mi)
6,414
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 18102?
31.9
Median Age
48.8%
Male
51.2%
Female
26.2%
Foreign-Born
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?
$43,085
Median Household Income
-45% vs state
$19,885
Per Capita Income
29.2%
Poverty Rate
10.9%
Unemployment Rate
24.9 min
Mean Commute Time
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
18,849
Total Housing Units
17,289
Occupied Units
1,560
Vacant Units
2.92
Avg Household Size
Occupancy Type
$163,400
Median Home Value
-28% vs state
$1,248
Median Rent
1938
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
+7.3%
YoY Change (2024)
380
HPI Index (2000 = 100)
+280%
Total Change Since 2000
Home values in ZIP 18102 have increased 7.3% over the past year (2024). Since 2000, this ZIP has seen +280% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +11.4% | 209 |
| 2021 | +20.4% | 252 |
| 2022 | +18.7% | 299 |
| 2023 | +18.3% | 354 |
| 2024 | +7.3% | 380 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 588 business establishments in ZIP 18102, employing approximately 6,588 people with a combined annual payroll of $321,936,000.
588
Businesses
6,588
Employees
$321.9M
Annual Payroll
15
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Retail trade | 108 | 18.4% |
| Health care and social assistance | 91 | 15.5% |
| Other services (except public administration) | 90 | 15.3% |
| Accommodation and food services | 49 | 8.3% |
| Professional, scientific, and technical services | 42 | 7.1% |
| Construction | 37 | 6.3% |
| Transportation and warehousing | 36 | 6.1% |
| Wholesale trade | 27 | 4.6% |
| Manufacturing | 24 | 4.1% |
| Administrative and support and waste management and remediation services | 22 | 3.7% |
| Real estate and rental and leasing | 20 | 3.4% |
| Finance and insurance | 16 | 2.7% |
| Educational services | 13 | 2.2% |
| Arts, entertainment, and recreation | 6 | 1.0% |
| Information | 5 | 0.8% |
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 18102 vs 18101 →
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 18101 | Allentown, PA | 3,897 | 0.5 mi |
| 18105 | Allentown, PA | 12 | 1.0 mi |
| 18103 | Allentown, PA | 45,336 | 2.6 mi |
| 18032 | Catasauqua, PA | 9,285 | 3.4 mi |
| 18109 | Allentown, PA | 16,932 | 2.7 mi |
| 18104 | Allentown, PA | 43,236 | 3.7 mi |
| 18052 | Whitehall, PA | 26,902 | 3.7 mi |
| 18018 | Bethlehem, PA | 32,413 | 4.5 mi |
| 18016 | Bethlehem, PA | 0 | 4.7 mi |
| 18067 | Northampton, PA | 17,852 | 7.5 mi |
More ZIP Codes in Lehigh County
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Frequently Asked Questions
What county is ZIP code 18102 in? ▼
What is the population of ZIP code 18102? ▼
What is the median household income in ZIP 18102? ▼
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What is the demographic makeup of ZIP 18102? ▼
How many businesses are in ZIP code 18102? ▼
What are the main industries in ZIP code 18102? ▼
How have home values changed in ZIP code 18102? ▼
What is the education level in ZIP code 18102? ▼
What is the average commute time in ZIP 18102? ▼
What percentage of residents own vs. rent in ZIP 18102? ▼
What is the poverty rate in ZIP code 18102? ▼
ZIP Code Research Guides
Official Data Resources for Allentown, PA
Verify and explore additional data for this area using these official government sources.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023). Business data: Source: Census ZIP Code Business Patterns (ZBP) 2023. Home value trends: Source: FHFA House Price Index (HPI), Five-Digit ZIP Codes.
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.
Read our methodology , how this data is sourced, computed, and verified.