Tool

ZIP Codes Within a Radius

Enter a ZIP code and a distance. The tool lists every residential ZIP code whose center (the Census Bureau's internal point of its area) lies within that many miles, nearest first. PO Box and single-organization codes have no area of their own, so they are not placed.

15 other ZIP codes within 10 miles of 63021

The 10-mile circle around 63021's center; residential ZIP codes centered inside it, shaded by median household income in national fifths (ACS 2020-2024); the others are outlined. <$54k$98k+no figureZIP codes centered outside the circle

Distance between internal points, in miles
ZIP	Town	People	Miles
63021	Ballwin, MO	55,666	0.0
63011	Ballwin, MO	35,920	2.5
63088	Valley Park, MO	8,226	2.8
63040	Wildwood, MO	8,526	4.8
63017	Chesterfield, MO	43,243	6.0
63049	High Ridge, MO	16,592	6.4
63131	Saint Louis, MO	17,935	6.6
63026	Fenton, MO	45,354	6.6
63038	Wildwood, MO	7,107	6.6
63025	Eureka, MO	19,508	6.6
63122	Saint Louis, MO	41,634	6.8
63127	Saint Louis, MO	5,268	7.4
63005	Chesterfield, MO	19,779	7.7
63141	Saint Louis, MO	20,932	7.8
63126	Saint Louis, MO	15,452	9.1
63146	Saint Louis, MO	30,678	9.7

Source: U.S. Census Bureau, 2023 Gazetteer internal points (2020 ZCTAs); GeoNames postal codes (CC BY 4.0) for a PO Box origin's town. Straight-line distance, not driving distance.