Welcome to the home of open mapping in the United States

OpenStreetMap is the free, editable map of the world. OpenStreetMap US is a nonprofit organization helping to support and grow the project in the US.

Our Work

Taking open mapping to the classroom

Targeted mapping for community partners

Solutions for responsible trail mapping

Powering community-led tools

The game of mini mapping challenges

The ultimate OpenStreetMap validator

The pen-and-paper mapping workflow

Free vector tiles and related resources needed to create interactive maps

Thematic extracts of OpenStreetMap data in cloud-native file formats

Get the lay of the land on OpenStreetMap's trail data

Bridging the open data gap

Charter Projects

Building the world’s most out-of-date map

We don’t just build maps. We build mappers.

Community Projects

A quintessentially American map style

Only the freshest OpenStreetMap data

Get Involved

Learn how to make your first edit

Join us!

Invest in our mission

Giving directly to the people making OSM the world’s best map

Community messenger and workspace

Collaborative mapping campaigns

Shop official OSM US merchandise

Conferences & Events

Register Today!

Our premiere conference series

Our free virtual conference series

Virtual OpenStreetMap hangouts and talks

November 17–22, 2025

Learn from community members

Upcoming event

I'm Already Using OpenStreetMap?

May 6, 2026

Join OSM US & Esri for a Mappy Hour on Wednesday, May 6th from 8 - 9 pm EDT to demonstrate how the world’s largest collaborative map shows up in the tools...

Thank you to our Members

The support of our members makes our work possible. Consider becoming an individual or organizational member.

Strategic Organizational Members