Kirkland Signature diapers are Costco’s private-label diapers; Babylist reports that First Quality replaced Kimberly-Clark as the supplier in January 2025. [1][3]

Who makes Kirkland Diapers?

Owner
Costco Wholesale Corporation owns the Kirkland Signature brand. [1]
Made by
First Quality according to dated reporting; a current Costco contract naming the diaper factory was not confirmed in this review. [3]
Made in
Exact factory and country allocations are Unconfirmed in the reviewed dated sources. [3][1]

Last checked · 3 sources · English source review

Kirkland Diapers supply chain map

Select a node to inspect its role and evidence. Arrows show ownership or manufacturing relationships, not shipment volumes.

Brand

→ Owner

→ Manufacturer

→ Factory

Kirkland Diapers

Kirkland Signature diapers are Costco’s private-label diapers; Babylist reports that First Quality replaced Kimberly-Clark as the supplier in January 2025.

Evidence: [1][3]

Text version of the map

  • Kirkland Diapers (Brand): Kirkland Signature diapers are Costco’s private-label diapers; Babylist reports that First Quality replaced Kimberly-Clark as the supplier in January 2025. [1][3]
  • Kirkland Diapers → Costco (Owner): Costco Wholesale Corporation owns the Kirkland Signature brand. [1]
  • Costco → Kirkland Diapers manufacturing (Manufacturer): First Quality according to dated reporting; a current Costco contract naming the diaper factory was not confirmed in this review. [3]

Who owns Kirkland Diapers?

Costco’s 2025 annual report identifies Kirkland Signature as its own brand. Its January 2025 shareholder presentation includes Kirkland diapers, but the retailer’s ownership of a label is not proof that it operates the diaper factory. [1][2]

Ownership guides: Kirkland BatteriesKirkland BourbonKirkland CoffeeKirkland Dog FoodKirkland Golf BallsKirkland paper towelsKirkland TequilaKirkland Toilet PaperKirkland VodkaKirkland Signature

Who actually makes Kirkland Diapers products?

Babylist’s article, updated March 25, 2026, reports a January 2025 supplier change from Kimberly-Clark to First Quality. That is attributed reporting; the primary Costco documents reviewed here do not publish the underlying manufacturing contract. [3][1]

Where are Kirkland Diapers products made?

These sources do not name the specific plant making each diaper size or assign every market’s Kirkland diaper to one country. No First Quality or Kimberly-Clark factory is added to the map merely because it makes diapers generally. [3][1]

Is Kirkland Diapers made in China or the USA?

US or Chinese origin for a particular Kirkland diaper pack remains Unconfirmed here. The brand owner’s US location and a reported supplier name do not settle pack-level origin. [1][3]

Same factory, different label

The old blanket comparison with Huggies misses the reported supplier change. A former common manufacturer does not prove the current Kirkland diaper is identical to a Huggies or Cuties product. [3]

Compare the sourced ownership and manufacturing guides: Kirkland Dog FoodKirkland Golf BallsKirkland VodkaTrader Joe’sKirkland BatteriesKirkland BourbonKirkland CoffeeKirkland paper towelsKirkland TequilaKirkland Toilet PaperKirkland Signature

Ownership timeline

  1. 2025-01: First Quality reportedly replaced Kimberly-Clark as the diaper supplier. [3]
  2. 2025-01-23: Costco included Kirkland diapers in its shareholder presentation. [2]
  3. 2025: Costco’s annual report identified Kirkland Signature as its own brand. [1]

Frequently asked questions

4 questions about this supply chain, answered from the records above.

Who makes kirkland diapers?

First Quality according to dated reporting; a current Costco contract naming the diaper factory was not confirmed in this review.[3]

Who manufactures kirkland diapers?

First Quality according to dated reporting; a current Costco contract naming the diaper factory was not confirmed in this review.[3]

Are Kirkland and Huggies the exact same diapers?

The old blanket comparison with Huggies misses the reported supplier change. A former common manufacturer does not prove the current Kirkland diaper is identical to a Huggies or Cuties product.[3]

Did Kirkland diapers change?

Babylist’s article, updated March 25, 2026, reports a January 2025 supplier change from Kimberly-Clark to First Quality. That is attributed reporting; the primary Costco documents reviewed here do not publish the underlying manufacturing contract.[3][1]

Sources and scope

Year-only source dates denote the report’s coverage year. Dated disclosures establish the facts described at that time. Plant output, contracts and ownership can change; this is a selected map, not a complete supplier census.

  1. [1] Costco annual report 2025 — 2025 · Primary source · Reviewed 2026-10-21.

    Costco’s 2025 annual report identifies Kirkland Signature as its own brand and describes supplier dependence.

  2. [2] Costco annual shareholder meeting presentation — 2025-01-23 · Primary source · Reviewed 2026-10-21.

    January 23, 2025 shareholder presentation includes Kirkland Signature diapers in Costco’s product presentation.

  3. [3] Babylist diaper testing and Kirkland supplier change — 2026-03-25 · Reporting · Reviewed 2026-10-21.

    Article updated March 25, 2026 reports the January 2025 switch from Kimberly-Clark to First Quality; reporting, not a published Costco manufacturing contract.

Unconfirmed

  • A current primary Costco/First Quality contract, diaper factory names, size-by-size allocations and countries.
  • Whether the current diapers are identical to any Huggies or Cuties retail product.