63303 Frequently Asked Questions

A: ZIP Code 63303 is Located in Saint Charles Missouri. Portions of 63303 are also in St. Charles, St. Peters, Zumbehl Township, Frontier Township, Harvester Township, Spencer Creek Township, Lindenwood Township.

A: ZIP Code 63303 is Located Entirely in Saint Charles County Missouri.

A: The Current Sales Tax in ZIP Code 63303 is 8.9%

A: The Area Codes for 63303 are 314, 557 and 636

A: ZIP Code 63303 is in the Missouri 3rd Congressional District.

A: 63303 is within Missouri State House of Representatives District 69, Missouri State House of Representatives District 104, Missouri State House of Representatives District 105 and Missouri State House of Representatives District 106.

A: 63303 is within Missouri State Senate District 2 and Missouri State Senate District 23.

A: The 2022 population of ZIP Code 63303 is 47285. The population growth rate in 63303 is 0.22%.

A: The majority race/ethnicity of people residing in 63303 is White (83.58%). The majority race/ethnicity of students attending public schools in 63303 is White(71.17%).

A: The median household income in 63303 is $85,949 (2021) and the average adjusted income is $81,380 (2020).