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.

15 other ZIP codes within 10 miles of 94521

The 10-mile circle around 94521'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
94521	Concord, CA	41,909	0.0
94518	Concord, CA	27,345	2.9
94519	Concord, CA	19,058	3.4
94598	Walnut Creek, CA	27,206	3.5
94565	Pittsburg, CA	100,488	4.5
94520	Concord, CA	37,381	4.5
94596	Walnut Creek, CA	23,417	5.7
94523	Pleasant Hill, CA	34,592	5.8
94517	Clayton, CA	12,316	6.0
94597	Walnut Creek, CA	23,129	6.1
94507	Alamo, CA	14,586	7.1
94528	Diablo, CA	1,049	7.7
94595	Walnut Creek, CA	16,988	7.8
94549	Lafayette, CA	28,420	8.9
94509	Antioch, CA	70,090	9.0
94526	Danville, CA	32,584	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.