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.

23 other ZIP codes within 10 miles of 21042

The 10-mile circle around 21042'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
21042	Ellicott City, MD	43,327	0.0
21794	West Friendship, MD	2,192	4.1
21163	Woodstock, MD	7,539	4.9
21104	Marriottsville, MD	6,052	4.9
21044	Columbia, MD	44,114	5.0
21043	Ellicott City, MD	48,525	5.2
21029	Clarksville, MD	13,607	5.6
21045	Columbia, MD	40,034	6.1
21036	Dayton, MD	2,569	6.7
21723	Cooksville, MD	669	6.8
21738	Glenwood, MD	3,696	7.1
21737	Glenelg, MD	2,474	7.4
21244	Windsor Mill, MD	38,208	7.5
21046	Columbia, MD	15,608	7.8
21228	Catonsville, MD	50,492	7.9
20777	Highland, MD	3,221	8.1
21133	Randallstown, MD	31,398	8.3
20759	Fulton, MD	6,624	8.7
21075	Elkridge, MD	37,363	9.2
20862	Brinklow, MD	430	9.4
21784	Sykesville, MD	39,258	9.5
20723	Laurel, MD	36,866	9.7
21207	Gwynn Oak, MD	47,099	9.9
21250	Baltimore, MD	2,834	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.