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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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Multnomah County ZIP Codes

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

County State ZIP Code City Area Codes
Multnomah County OR 97215 Portland 503, 971
Multnomah County OR 97216 Portland 503, 971
Multnomah County OR 97217 Portland 360, 503, 564, 971
Multnomah County OR 97218 Portland 503, 971
Multnomah County OR 97219 Portland 503, 971
Multnomah County OR 97220 Portland 503, 971
Multnomah County OR 97221 Portland 503, 971
Multnomah County OR 97227 Portland 503, 971
Multnomah County OR 97228 Portland 971
Multnomah County OR 97230 Portland 360, 503, 564, 971
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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.