⚡ Design Systems in the United States

Design systems are comprehensive frameworks of style guides, reusable UI components, patterns, and documentation that help designers and developers build consistent digital products.

The United States of America (USA) is a North American country with a population of over 341 million people.

According to our data, design systems are detected on 0.6% of websites from the United States.

⭐ Most Popular in 2026

The following chart shows the top design systems in the United States in 2026, based on market share.

The most popular is Material Design, which dominates the market with an overwhelming 77.5% share.
It is followed by USWDS with 11.9% and Codex with 3.4%.

Material Design 77.5%
USWDS 11.9%
Codex 3.4%
Ant Design 3.1%
Fluent 1.9%
Spectrum Web Components 0.8%
Calcite Design System 0.7%
Atlassian UI 0.5%
Uber Base 0.3%
GOV.UK Design System 0.06%
SAPUI5 0.06%

🚀 Highlights

Here is a list of the top systems that are more popular in the United States than worldwide.
Differences between global and country rankings are shown in parentheses.

2. USWDS ^(-1)
3. Codex ^(-2)
5. Fluent ^(-1)
6. Spectrum Web Components ^(-3)
7. Calcite Design System ^(-3)
9. Uber Base ^(-3)
11. SAPUI5 ^(-2)

✨ Best Design Systems

Below is a more detailed list of 11 design systems used on sites from the United States, ranked by their market share.

Rank	Name	Market share
1	Material Design Mountain View, California, United States A design system developed by Google that defines a unified visual and interaction language used across Android, web, and other platforms.	77.5%
2	USWDS Washington, D.C., United States The United States Web Design System helps the federal government build fast, accessible, mobile-friendly websites. FreeOpen source	11.9%
3	Codex San Francisco, California, United States The official design system for Wikimedia that provides a unified toolkit and guidelines for user interface design.	3.4%
4	Ant Design Hangzhou, China An enterprise-level UI design language and React component library. FreeOpen source	3.1%
5	Fluent Redmond, Washington, United States Design System is Microsoft's cross-platform design language that defines how user interfaces should look and behave across Windows, web, and mobile applications.	1.9%
6	Spectrum Web Components San Jose, California, United States An implementation of Spectrum, Adobe's design system. FreeOpen source	0.8%
7	Calcite Design System Redlands, California, United States A collection of design and development resources for creating beautiful, easy-to-use, and cohesive experiences across apps. FreeOpen source	0.7%
8	Atlassian UI Sydney, Australia A tailor-made frontend library for creating a user interface according to the Atlassian Design Guidelines. FreeOpen source	0.5%
9	Uber Base San Francisco, California, United States Base is Uber's design system that defines the foundational UI language and core interface elements used across its ecosystem of products and services.	0.3%
10	GOV.UK Design System London, United Kingdom A set of styles, components and patterns to help teams across UK government create user-centered digital services. FreeOpen source	0.06%
11	SAPUI5 Walldorf, Baden-Württemberg, Germany A JavaScript framework for building cross-platform, enterprise-grade web apps with modern, responsive, and rich user interfaces. FreeOpen source$$$	0.06%

👉 See Also

🌎 Design Systems in other countries

Data is based on the analysis of 545,779 websites from the United States.
Statistics were last calculated on March 21, 2026.
For details, see our methodology and disclaimer.