18103 Frequently Asked Questions

A: ZIP Code 18103 is Located in Allentown Pennsylvania. Portions of 18103 are also in Dorneyville, Wescosville, Salisbury Township (Lehigh County), Lower Macungie Township, South Whitehall Township, Upper Saucon Township.

A: ZIP Code 18103 is Located Entirely in Lehigh County Pennsylvania.

A: The Current Sales Tax in ZIP Code 18103 is 6.0%

A: The Area Codes for 18103 are 484, 610 and 835

A: ZIP Code 18103 is in the Pennsylvania 7th Congressional District.

A: 18103 is within Pennsylvania State House of Representatives District 22, Pennsylvania State House of Representatives District 131, Pennsylvania State House of Representatives District 132, Pennsylvania State House of Representatives District 134 and Pennsylvania State House of Representatives District 187.

A: 18103 is within Pennsylvania State Senate District 14 and Pennsylvania State Senate District 16.

A: The 2022 population of ZIP Code 18103 is 48344. The population growth rate in 18103 is 4.80%.

A: The majority race/ethnicity of people residing in 18103 is White (54.72%). The majority race/ethnicity of students attending public schools in 18103 is Hispanic(54.03%).

A: The median household income in 18103 is $66,400 (2021) and the average adjusted income is $61,690 (2020).