World's Best Cat Litter
Last checked: Nov 8, 2026
The full answer: Is World's Best Cat Litter Made in USA?Verification Summary
American Score
Manufacturing Location
Muscatine, IA
Headquarters
Muscatine, IA
Founded
1996
Products Verified
4 products
Evidence Breakdown
Factory Location Specificity
Specific factory city identified
Website Claim
The brand's website says it makes its products in the USA
Manufacturing History
Long record of US manufacturing
Known Overseas Production
No imported lines on record
Verification Notes
Producer of whole-kernel-corn clumping cat litter since 1996, manufactured by Kent Pet Group (a subsidiary of Kent Corporation) in Muscatine, Iowa. Brand's own FAQ confirms the Muscatine, Iowa production location.
Brand evidence is re-checked on a rolling cycle
Quick Picks
Manufacturing Profile
World's Best Cat Litter manufactures at its factory in Muscatine, IA. Founded in 1996, 30 years ago. The 4 World's Best Cat Litter listings here sit in pet supplies.
Verification tier
94% average
High: strong brand evidence, usually with product-level origin statements
Factory evidence
Specific city
Muscatine, IA
Catalog breadth
4 products
1 category
How we verified World's Best Cat Litter
Most recent check: Nov 8, 2026
From the brand's website
“World's Best Cat Litter® is produced by Kent Pet Group in Muscatine, Iowa.”
worldsbestcatlitter.com · checked Sep 27, 2026
Independent source
“KENT Pet Group announced today its plan to break ground on a new manufacturing plant this summer.”
kentww.com · checked Oct 22, 2026
Store listings
We read the live store listing for 4 of the 4 World's Best Cat Litter products on this page (most recently Nov 7, 2026). All of them state US origin on the listing itself:
- “made in the USA” on World's Best Cat Litter, Multiple Cat, Unscented, Odor Control, 15 lb Bag
- “made in the USA” on World's Best Cat Litter Multiple Cat, Unscented, Odor Control, 32 lb Bag
- “made in the USA” on World's Best Cat Litter Comfort Care, Unscented, Odor Control, 32 lb Bag
Ongoing monitoring
We scan news for factory closures, offshoring and ownership changes. Last scan Oct 22, 2026: no change found.
These checks are run by our software on a schedule: brand websites are re-read about every three weeks, store listings weekly, and news is scanned monthly. Every flag is checked against its original source before anything on this page changes. How the American Score works.
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World's Best Cat Litter was founded in 1996 and makes the products listed here in Muscatine, IA. The site lists 4 verified American-made World's Best Cat Litter products.
Corn litter from Muscatine
The brand started in 1996, when, by its own account, a group of scientists set out to build a better clumping litter without clay. Their answer was corn. A patented process compresses whole-kernel corn into absorbent granules that clump, contain no clay or silica dust, and can be flushed. The company says every formula has been tested as sewer- and septic-safe.
The FAQ is direct about origin: "World's Best Cat Litter is produced by Kent Pet Group in Muscatine, Iowa." Kent Pet Group, a subsidiary of Kent Corporation, has also announced a new manufacturing plant in Muscatine. The FAQ also says all of its litters "are made from whole-kernel corn that is grown in the U.S."
Picking a formula
World's Best now sells ten formulas. Multiple Cat Unscented adds a plant ingredient for stronger odor control in homes with two or more cats. Comfort Care Unscented has a softer texture for sensitive paws. Multiple Cat Lavender adds a natural scent, and Low Tracking & Dust Control uses granules meant to stay in the box.
All of them share the same corn base and the same Iowa origin. We found no World's Best page naming an overseas plant or imported ingredient.
Frequently Asked Questions
Is World's Best Cat Litter made in the USA?
Yes, for the 4 products listed here. World's Best Cat Litter manufactures in Muscatine, IA. World's Best Cat Litter makes clumping cat litter from US-grown whole-kernel corn. Kent Pet Group produces it in Muscatine, Iowa, and has since the brand began in 1996.
Where is World's Best Cat Litter manufactured?
World's Best Cat Litter is headquartered in Muscatine, IA. Manufacturing takes place in Muscatine, IA.
What World's Best Cat Litter products can I buy?
The site lists 4 World's Best Cat Litter products in Pet Supplies. Each one links to a store that sells it.
When was World's Best Cat Litter founded?
World's Best Cat Litter was founded in 1996. World's Best Cat Litter makes clumping cat litter from US-grown whole-kernel corn. Kent Pet Group produces it in Muscatine, Iowa, and has since the brand began in 1996.
Where can I buy World's Best Cat Litter products?
Every World's Best Cat Litter product listed here links to a store that sells it, either a large online retailer or the brand's own shop.