U.S. postal lookup

U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

42,735 verified records

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State directory

California ZIP Codes

Complete postal directory, details, and geographic map for the State of California.

State	ZIP Code	City	County	Area Codes
CA	95969	Paradise	Butte County	`530`
CA	95970	Princeton	Colusa County	`530`
CA	95971	Quincy	Plumas County	`530`
CA	95972	Rackerby	Yuba County	`530`
CA	95973	Chico	Butte County	`530`
CA	95974	Richvale	Butte County	`530`
CA	95975	Rough And Ready	Nevada County	`530`
CA	95976	Chico	Butte County	`530`
CA	95977	Smartsville	Nevada County	`530`
CA	95978	Stirling City	Butte County	`530`

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About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.