Shopify’s Fastest Growing U.S. Product Categories in September 2026

Product categoryMonth-over-month sales growthRVs+354%Tractors+248%Stickers+233%Jumpsuits+209%Bathroom scales+208%Costume sets+198%Denture glue+181%Pet costumes+179%Adjustable workout benches+176%Pool cover supplies+169%Source: Shopify, U.S. merchant sales, September 2026 versus the prior month.

A broad mix of merchant demand Shopify put RVs at the top of the list with 354% sales growth from the prior month, followed by tractors at 248% and stickers at 233%. Apparel appeared through jumpsuits at 209%, while bathroom scales and workout benches put health and fitness related products in the ranking.

Costume sets and pet costumes also rose sharply in September, aligning the list with the approach of Halloween. Pool cover supplies pointed to a different seasonal purchase cycle. The common trend is not one dominant retail category but the range of niches served by Shopify merchants.

The percentages measure growth against each category’s prior month sales on the platform. Merchants planning inventory or campaigns, the useful signal is where demand accelerated on Shopify in September and how those patterns intersect with their own customer base.