Is World's Best Cat Litter Made in USA?
Last checked Nov 8, 2026 · 4 verified products · see the evidence
Verdict · checked Nov 1, 2026
Yes
World's Best Cat Litter is made in Iowa. The brand's FAQ states that "World's Best Cat Litter is produced by Kent Pet Group in Muscatine, Iowa," a subsidiary of the Kent Corporation.
| Product line | Made in | Status |
|---|---|---|
| Corn-based clumping litters (Multiple Cat, Comfort Care, scented) | Muscatine, IA | Made in USA |
The raw material is domestic too. The homepage says the litter is "Made from USA-grown sustainable corn," and the FAQ says "All World's Best Cat Litter litter products are made from whole-kernel corn that is grown in the U.S." We found no World's Best page naming an overseas plant or imported ingredient.
How we checked: On 2026-11-01 we read the World's Best Cat Litter homepage and FAQ page on worldsbestcatlitter.com.
Sources: World's Best Cat Litter FAQ: produced by Kent Pet Group in Muscatine, Iowa; US-grown corn · World's Best Cat Litter homepage: made from USA-grown corn
American Score
Average American Score across 4 listed products. Only products at 70% or higher appear on this site.
Manufacturing Details
- Made in
- Muscatine, IA
- Headquarters
- Muscatine, IA
- Location detail
- Specific city confirmed
- History
- Long record of US manufacturing
- Founded
- 1996
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.
Free Weekly Newsletter
American-Made Finds
One maker's story, the brands newly listed here, and a few US-made picks, every Thursday.
About World's Best Cat Litter
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.
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.
American-Made World's Best Cat Litter Products
USA Verified
USA Verified
USA Verified
Frequently Asked Questions
Is World's Best Cat Litter made in the USA?
Yes. World's Best Cat Litter is made in the United States, with manufacturing in Muscatine, IA. 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.
Where is World's Best Cat Litter made?
World's Best Cat Litter is made in Muscatine, IA. The company is headquartered in Muscatine, IA.
Which World's Best Cat Litter products are made in the USA?
The site lists 4 verified American-made World's Best Cat Litter products in Pet Supplies. Each one links to a store that sells it.
Where is World's Best Cat Litter made?
In Muscatine, Iowa. The brand's FAQ says it "is produced by Kent Pet Group in Muscatine, Iowa," a subsidiary of the Kent Corporation.
Is the corn in World's Best Cat Litter grown in the USA?
Yes. The FAQ states that all of its litter products "are made from whole-kernel corn that is grown in the U.S."
Who owns World's Best Cat Litter?
Kent Pet Group, which the brand describes as a subsidiary of the Kent Corporation.