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.

19 other ZIP codes within 10 miles of 06820

The 10-mile circle around 06820'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
06820	Darien, CT	21,936	0.0
06906	Stamford, CT	9,199	2.2
06853	Norwalk, CT	3,171	2.3
06907	Stamford, CT	8,705	2.7
06854	Norwalk, CT	32,118	2.9
06905	Stamford, CT	20,725	3.4
06901	Stamford, CT	11,037	3.4
06902	Stamford, CT	73,392	3.5
06850	Norwalk, CT	19,692	4.0
06855	Norwalk, CT	9,351	4.7
06840	New Canaan, CT	20,870	5.9
06851	Norwalk, CT	27,865	5.9
06870	Old Greenwich, CT	7,864	5.9
06807	Cos Cob, CT	7,650	6.0
06878	Riverside, CT	8,328	6.3
06903	Stamford, CT	14,010	6.3
06830	Greenwich, CT	24,880	8.0
06880	Westport, CT	27,583	8.5
06831	Greenwich, CT	15,210	9.3
06897	Wilton, CT	18,777	9.6

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.