# Stockholm Junior Water Prize

International competition for water-related science and environmental projects.

## Key facts

| Field | Value |
| --- | --- |
| Organization | Stockholm International Water Institute |
| Category | stem |
| Cost | Free |
| Deadline | 2027-04-15 |
| Eligibility | Grades 9–12 |
| Format | Hybrid (in person + online) |
| Location | Check official site |
| Apply | https://www.siwi.org/ |

## About this program

The **Stockholm Junior Water Prize** is an international competition that recognizes high school students who develop research projects related to **water science, technology, management, or environmental protection**. Organized by the **Stockholm International Water Institute (SIWI)**, the program encourages students to tackle real-world challenges such as water quality, access to clean water, wastewater treatment, and aquatic ecosystem health. Projects may be experimental, engineering-based, or focused on data analysis and policy, as long as they are grounded in sound scientific methods.

This program is well suited for students who enjoy **independent research**, have a strong interest in **STEM and environmental issues**, and are motivated to explore how science can address global water challenges. Participants can strengthen skills in research design, data collection, analysis, and scientific communication. Recognition in this competition can be a meaningful addition to **college applications**, demonstrating academic initiative, problem-solving ability, and commitment to sustainability. Many national competitions also provide opportunities to present work to experts in the field, receive feedback, and connect with other students interested in water-related science.

## Frequently asked questions

### How much does Stockholm Junior Water Prize cost?

Stockholm Junior Water Prize is completely free — there is no participation fee. Costs like travel or optional materials may still apply; check the official site for details.

### What is the application deadline for Stockholm Junior Water Prize?

The application deadline is April 15, 2027. Always confirm on the program's official site, as dates can shift between cycles.

### Who is eligible for Stockholm Junior Water Prize?

Stockholm Junior Water Prize is open to high school students in grades 9–12. Some programs have additional requirements (GPA, coursework, essays, or recommendations) — the full criteria are on the official site.

### Is Stockholm Junior Water Prize online or in person?

Stockholm Junior Water Prize is a hybrid program with both online and in-person components.

### How do I apply to Stockholm Junior Water Prize?

Apply directly through Stockholm International Water Institute's official website. ExtracurricularHub links to the official application — we list and verify programs but don't process applications.

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Last updated: 2026-07-05.
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