| ZIP Code | 18104 |
| ZIP Code Name | Allentown |
| Primary County | Lehigh County |
| ZIP Code Type | Standard |
| Population (2021) | 45,959 |
| Area Code(s) | 484 / 610 |
| Current Time | EDT |
18104 is a United States ZIP Code located in Allentown Pennsylvania. Portions of 18104 are also in Cetronia and Dorneyville and Fullerton and Wescosville and South Whitehall Township and North Whitehall Township and Upper Macungie Township and Whitehall Township and Lower Macungie Township. 18104 is entirely within Lehigh County. 18104 is within Metro Philadelphia.
18104 can be classified socioeconically as a Middle Class class zipcode in comparison to other zipcodes in Pennsylvania based on Median Household Income and Average Adjusted Gross Income. Measuring level of educational attainment the majority of adults in 18104 have at least a High School Diploma. The majority race/ethnicity residing in 18104 is White. The majority race/ethnicity attending public schools in 18104 is Hispanic. The current unemployment level in 18104 is 6.9%.
| Population | 45,959 |
| Population Growth Rate | 3.11% |
| Population Density | 1,953 People per Square Mile |
| Total Households | 16,587 |
| Percentage High Income Households | 6.7% |
| Median Houshold Income (2021) | $76,972 |
| Average Adjusted Gross Income (2019) | $84,000 |
| Current Unemployment Rate (June 2023) | 6.9% |
| Majority Race/Ethnicty | White - 72.48% |
| Public School Majority Race/Ethnicty | Hispanic - 41.33% |
| Race/Ethnicty | Total | Percentage |
|---|---|---|
| White | 34,770 | 72.44% |
| Black | 3,057 | 6.37% |
| Hispanic | 6,805 | 14.18% |
| Asian | 3,294 | 6.86% |
| Native American | 49 | 0.1% |
| Hawaiian/Pac. Islander | 24 | 0.05% |
| Race/Ethnicty | Total | Percentage |
|---|---|---|
| White | 3,957 | 38.42% |
| Black | 961 | 9.33% |
| Hispanic | 4,421 | 42.93% |
| Asian | 937 | 9.1% |
| Native American | 11 | 0.11% |
| Hawaiian/Pac. Islander | 12 | 0.12% |
| Highest Education Level Attained | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 1,274 | 4.5% |
| Bachelor Degree | 6,338 | 22.4% |
| High School Diploma | 8,325 | 29.42% |
| No High School Diploma | 551 | 1.95% |
| GED or Alternate | 658 | 2.33% |
| 1 or More Years of College | 3,441 | 12.16% |
| Associates Degree | 2,631 | 9.3% |
| Masters Degree | 3,591 | 12.69% |
| Professional Degree | 874 | 3.09% |
| Doctorate Degree | 603 | 2.13% |
| Coordinates | 40.61057281,-75.54682159 |
| Adjacent ZIP Codes | |
| Cities/Towns in 18104 | |
| Region | Metro Philadelphia |
| Metropolitan/Micropolitan Stat Area | Allentown-Bethlehem-Easton, PA-NJ |
| Time Zone | Eastern Daylight Time |
| IANA Timezone | America/New_York |
| Area | 24 Square Miles |
| US Congressional Districts in 18104 | |
| Pennsylvania State Senate Districts in 18104 | |
| Pennsylvania State House of Representatives Districts in 18104 |
| School Districts in 18104 | |
| Elementary Schools in 18104 | |
| Middle Schools in 18104 |
| Plant Hardiness Zone | Zone 6b: -5F to 0F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average First Frost Date | October 11 - 20 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average Last Frost Date | April 21 - 31 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Koppen-Geiger Climate Zone | Dfa - Humid Continental Hot Summers | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 67a - Northern Limestone/Dolomite Valleys | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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