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.

22 other ZIP codes within 10 miles of 20899

The 10-mile circle around 20899'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
20899	Gaithersburg, MD	57	0.0
20877	Gaithersburg, MD	38,546	1.3
20880	Washington Grove, MD	577	2.2
20878	Gaithersburg, MD	66,115	2.9
20886	Montgomery Village, MD	34,718	3.1
20879	Gaithersburg, MD	25,264	3.2
20850	Rockville, MD	50,353	4.3
20876	Germantown, MD	26,406	4.4
20855	Derwood, MD	17,279	4.6
20874	Germantown, MD	62,738	4.7
20841	Boyds, MD	9,969	6.3
20882	Gaithersburg, MD	13,751	6.5
20851	Rockville, MD	14,946	6.9
20853	Rockville, MD	31,851	7.2
20832	Olney, MD	25,553	7.4
20854	Potomac, MD	50,498	7.7
20852	Rockville, MD	48,180	8.1
20871	Clarksburg, MD	30,182	8.7
20833	Brookeville, MD	7,860	9.4
20906	Silver Spring, MD	70,595	9.5
20860	Sandy Spring, MD	2,035	9.7
20838	Barnesville, MD	306	9.9
20896	Garrett Park, MD	932	10.0

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.