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

All states and U.S. territories

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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	95958	Nelson	Butte County	`530`
CA	95959	Nevada City	Nevada County	`530`
CA	95960	North San Juan	Nevada County	`530`
CA	95961	Olivehurst	Yuba County	`530`
CA	95962	Oregon House	Yuba County	`530`
CA	95963	Orland	Glenn County	`530`
CA	95965	Oroville	Butte County	`530`
CA	95966	Oroville	Butte County	`530`
CA	95967	Paradise	Butte County	`530`
CA	95968	Palermo	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.