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.

12 other ZIP codes within 10 miles of 21155

The 10-mile circle around 21155'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
21155	Upperco, MD	3,313	0.0
21074	Hampstead, MD	14,777	3.8
21023	Butler, MD	66	4.9
21071	Glyndon, MD	404	6.2
21152	Sparks Glencoe, MD	6,459	6.5
21030	Cockeysville, MD	25,827	7.0
21048	Finksburg, MD	10,481	8.1
21102	Manchester, MD	12,162	8.5
21120	Parkton, MD	7,440	8.6
21136	Reisterstown, MD	32,088	9.5
21157	Westminster, MD	38,984	9.6
21053	Freeland, MD	2,929	9.8
21031	Hunt Valley, MD	26	9.9

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.