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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.

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Clark County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Clark County.

County State ZIP Code City Area Codes
Clark County OH 45505 Springfield 326, 937
Clark County OH 45506 Springfield 326, 937
Clark County SD 57217 Bradley 605
Clark County SD 57225 Clark 605
Clark County SD 57236 Garden City 605
Clark County SD 57258 Raymond 605
Clark County SD 57271 Vienna 605
Clark County SD 57278 Willow Lake 605
Clark County WA 98601 Amboy 360, 564
Clark County WA 98604 Battle Ground 360, 564
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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.