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Mississippi ZIP codes

All 531 ZIPs in Mississippi, 38601 to 39776. Tap one on the map or in the list.

531

ZIP codes

2,946,719

people live in them

82

counties

104

PO Box & no-area ZIPs

Most people

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All 531 Mississippi ZIP codes

ZIP codes by county

Pick a county for its ZIP list and map. Counts include ZIPs that only partly reach into the county.

Questions people actually ask

How many ZIP codes are in Mississippi?

531 ZIP codes are in use in Mississippi. 427 cover a delivery area, and 104 are PO Box, single-building or organization ZIPs with no area of their own.

What do Mississippi ZIP codes start with?

Mississippi ZIP codes start with these three-digit prefixes: 386–397. Each prefix is a mail sorting area run from one processing center.

Which Mississippi ZIP code has the most people?

38654 in Olive Branch has the most residents of any Mississippi ZIP, about 57,898 people in the Census Bureau’s ACS 2020–2024 estimates.

Which Mississippi county has the most ZIP codes?

Hinds County touches 38 ZIP codes, the most of the 82 counties in Mississippi. 232 Mississippi ZIPs reach into more than one county.

Are these the official USPS ZIP code boundaries?

The map uses Census ZIP Code Tabulation Areas, the standard public stand-in for USPS delivery areas. They match for almost every home. For a mailing address, the USPS ZIP Code lookup has the final word.

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Updated 2026-11-10 · Where the data comes from