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.

13 other ZIP codes within 10 miles of 80305

The 10-mile circle around 80305'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
80305	Boulder, CO	16,291	0.0
80310	Boulder, CO	7,692	2.0
80303	Boulder, CO	24,996	2.1
80025	Eldorado Springs, CO	138	4.5
80027	Louisville, CO	34,127	5.1
80304	Boulder, CO	25,383	5.1
80301	Boulder, CO	25,007	5.4
80302	Boulder, CO	29,569	6.3
80007	Arvada, CO	19,078	8.1
80026	Lafayette, CO	32,701	8.2
80021	Broomfield, CO	36,555	9.3
80471	Pinecliffe, CO	0	9.5
80544	Niwot, CO	0	9.6
80020	Broomfield, CO	54,201	9.8

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.