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Amazon overtakes US Postal Service as largest parcel carrier

Amazon passed the U.S. Postal Service as the largest domestic parcel carrier in 2025, anchoring a broader market shift away from traditional couriers, as it in-sourced a large amount of last-mile delivery work previously handled by UPS, according to data published Monday by ShipMatrix Inc.

Amazon (NASDAQ: AMZN) handled 6.7 billion parcels last year, up 9.8% year over year, compared to an 8.3% decline for the U.S. Postal Service to 6.6 billion pieces. UPS (NYSE: UPS) also experienced an 8.3% volume decline at 4.4 billion deliveries. FedEx (NYSE: FDX) delivered 3.6 billion parcels in 2025, up 5.9%. Amazon’s parcel growth isn’t just fueled by its own online orders, but new contracts from third parties that don’t sell on the retailer’s platform. 

Amazon overtakes US Postal Service as largest parcel carrier – FreightWaves

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