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.

14 other ZIP codes within 10 miles of 21120

The 10-mile circle around 21120'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
21120	Parkton, MD	7,440	0.0
21053	Freeland, MD	2,929	4.1
21105	Maryland Line, MD	36	4.9
21161	White Hall, MD	5,221	5.9
21152	Sparks Glencoe, MD	6,459	6.3
21111	Monkton, MD	4,714	6.7
17349	New Freedom, PA	8,254	6.9
17355	Railroad, PA	322	7.9
17361	Shrewsbury, PA	6,156	8.3
21155	Upperco, MD	3,313	8.6
21074	Hampstead, MD	14,777	8.9
21030	Cockeysville, MD	25,827	9.1
21023	Butler, MD	66	9.2
17363	Stewartstown, PA	8,553	9.6
21102	Manchester, MD	12,162	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.