ZIP Code 18103
| ZIP Code | 18103 |
| City | ALLENTOWN |
| State | PA |
| Type | STANDARD |
| Post offices count | 1 (see all) |
| Total population | 49,023 (see all) |
Cities in ZIP Code 18103
Primary city: ALLENTOWN, PAPost offices
ALLENTOWN AIRPORT — Post Office™ 1000 POSTAL RD SIDE ALLENTOWN, PA 18109-9998 MoreALLENTOWN AIRPORT — Post Office™1000 POSTAL RD SIDE For facility accessibility, please call the Post Office. 1-800-ASK-USPS® (800-275-8777) Hours
Services at this Location Service hours may vary.
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Census data for ZIP Code 18103
Demographic and housing estimates in ZIP Code 18103
| Total population | 49,023 |
| Male | 24,528 |
| Female | 24,495 |
| Total population | 49,023 |
| Under 5 years | 3,361 |
| 5 to 9 years | 2,903 |
| 10 to 14 years | 2,996 |
| 15 to 19 years | 3,074 |
| 20 to 24 years | 2,793 |
| 25 to 34 years | 7,234 |
| 35 to 44 years | 6,143 |
| 45 to 54 years | 5,709 |
| 55 to 59 years | 3,821 |
| 60 to 64 years | 3,063 |
| 65 to 74 years | 4,483 |
| 75 to 84 years | 2,290 |
| 85 years and over | 1,153 |
| Median age (years) | 38.3 |
| Under 18 years | 10,935 |
| 16 years and over | 39,212 |
| 18 years and over | 38,088 |
| 21 years and over | 36,161 |
| 62 years and over | 9,680 |
| 65 years and over | 7,926 |
| Total population | 49,023 |
| One race | 43,092 |
| White | 31,295 |
| Black or African American | 5,251 |
| American Indian and Alaska Native | 487 |
| Asian | 1,297 |
| Native Hawaiian and Other Pacific Islander | 0 |
| Some other race | 4,762 |
| Two or more races | 5,931 |
| Citizen, VOTING AGE 18 and over population | 34,565 |
| Male Citizen, VOTING AGE 18 and over population | 16,997 |
| Female Citizen, VOTING AGE 18 and over population | 17,568 |
Social characteristics in ZIP Code 18103
| Total households | 18,745 |
| Family households (families) | 9,184 |
| Married-couple family | 1,939 |
| Male householder, no wife present, family | 3,343 |
| Female householder, no husband present, family | 2,408 |
| Nonfamily households | 4,279 |
| Average household size | 5,549 |
| Average family size | 2.58 |
Economic characteristics in ZIP Code 18103
| Total households | 18,745 |
| Less than $10,000 | 735 |
| $10,000 to $14,999 | 562 |
| $15,000 to $24,999 | 1,813 |
| $25,000 to $34,999 | 1,440 |
| $35,000 to $49,999 | 2,324 |
| $50,000 to $74,999 | 3,691 |
| $75,000 to $99,999 | 2,671 |
| $100,000 to $149,999 | 3,054 |
| $150,000 to $199,999 | 1,378 |
| $200,000 or more | 1,077 |
| Median household income (dollars) | 66,400 |
Housing characteristics in ZIP Code 18103
| Total housing units | 19,912 |
| Occupied housing units | 18,745 |
| Vacant housing units | 1,167 |
| Total housing units | 19,912 |
| 1-unit, detached | 9,814 |
| 1-unit, attached | 4,981 |
| 2 units | 233 |
| 3 or 4 units | 980 |
| 5 to 9 units | 1,158 |
| 10 to 19 units | 1,473 |
| 20 or more units | 1,216 |
| Mobile home | 57 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 19,912 |
| Built 2014 or later | 11 |
| Built 2010 to 2013 | 178 |
| Built 2000 to 2009 | 1,177 |
| Built 1990 to 1999 | 916 |
| Built 1980 to 1989 | 2,567 |
| Built 1970 to 1979 | 2,906 |
| Built 1960 to 1969 | 3,570 |
| Built 1950 to 1959 | 4,056 |
| Built 1940 to 1949 | 1,338 |
| Built 1939 or earlier | 3,193 |
| Total housing units | 19,912 |
| 1 room | 276 |
| 2 rooms | 458 |
| 3 rooms | 1,913 |
| 4 rooms | 2,374 |
| 5 rooms | 3,242 |
| 6 rooms | 4,547 |
| 7 rooms | 2,556 |
| 8 rooms | 1,989 |
| 9 rooms or more | 2,557 |
| Median rooms | 5.9 |
| Total housing units | 19,912 |
| No bedroom | 332 |
| 1 bedroom | 2,778 |
| 2 bedrooms | 3,704 |
| 3 bedrooms | 8,805 |
| 4 bedrooms | 3,328 |
| 5 or more bedrooms | 965 |
| Occupied housing units | 18,745 |
| Owner-occupied | 11,639 |
| Renter-occupied | 7,106 |
| Average household size of owner-occupied unit | 2.55 |
| Average household size of renter-occupied unit | 2.61 |
| Occupied housing units | 18,745 |
| Moved in 2017 or later | 2,064 |
| Moved in 2015 to 2016 | 4,874 |
| Moved in 2010 to 2014 | 2,940 |
| Moved in 2000 to 2009 | 3,451 |
| Moved in 1990 to 1999 | 2,571 |
| Moved in 1989 and earlier | 2,845 |
| Owner-occupied units | 11,639 |
| Less than $50,000 | 303 |
| $50,000 to $99,999 | 624 |
| $100,000 to $149,999 | 2,910 |
| $150,000 to $199,999 | 2,477 |
| $200,000 to $299,999 | 2,544 |
| $300,000 to $499,999 | 2,265 |
| $500,000 to $999,999 | 516 |
| $1,000,000 or more | 0 |
| Median (dollars) | 188,900 |
| Owner-occupied units | 11,639 |
| Housing units with a mortgage | 7,748 |
| Housing units without a mortgage | 3,891 |
| Occupied units paying rent | 6,992 |
| Less than $500 | 304 |
| $500 to $999 | 1,474 |
| $1,000 to $1,499 | 3,827 |
| $1,500 to $1,999 | 1,220 |
| $2,000 to $2,499 | 80 |
| $2,500 to $2,999 | 24 |
| $3,000 or more | 63 |
| Median (dollars) | 1,173 |
| No rent paid | 114 |
Data is based on 2021 Census