Join the OpenStreetMap community for a free virtual conference. Enjoy two days of talks, workshops, and all things mappy.

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

Powering community-led tools

Bridging the open data gap

Solutions for responsible trail mapping

The pen-and-paper mapping workflow

Full-featured static website theme

Charter Projects

The game of mini mapping challenges

The ultimate OpenStreetMap validator

Building the world’s most out-of-date map

Get Involved

Learn how to make your first edit

Join us!

Become a funding partner

Community messenger and workspace

Collaborative mapping campaigns

Shop official OSM US merchandise

Conferences & Events

Our premiere conference series

Our free virtual conference series

Virtual OpenStreetMap hangouts and talks

November 18–22, 2024

Learn from community members

Upcoming events

Welcome to Mapping USA 2025!

Jan 24, 2025 · Maggie Cawley

15 Years of OpenStreetMap US: Retrospective

Jan 24, 2025

SliceOSM Community Project: download the freshest OpenStreetMap data!

Jan 24, 2025 · Brandon Liu and Jake Low

SliceOSM is a new OSMUS community project! This web service is the easiest way to download up-to-the-minute data for any custom area. Come see how it is made, and how to get...

OSM Merge Community Project

Jan 24, 2025 · Rob Savoye

Conflating external datasets into OpenStreetMap.

Americana Community Project

Jan 24, 2025 · Clay Smalley

Charting the Woods of West Virginia and Beyond

Jan 24, 2025 · Attila Kun

Discussing the updates, challenges and outlining future plans regarding mapping woods for Eastern USA in OSM.

Data exploration with filterable maps - WAMap

Jan 24, 2025 · Matthew Whilden

Applying full data vector tiles and a basic filtering UI creates an instantly responsive Overpass experience without all the syntax and ceremony. https://watmildon.github.io/TIGERMap/WAMap/

Open Street Level imagery for US with Mapillary

Jan 24, 2025 · Said Turksever and Alyssa Castronuovo

Mapillary is on the way to 3 billion images by 2025. Partnering with OSM US, we’re expanding coverage across the US. Join us to explore Mapillary’s tech, mission to map every street...

Share your first OSM edit - now with AI!

Jan 24, 2025 · Martijn van Exel

Remember your first OSM changeset? Wasn’t it exhilarating? Something you would want to share with the world! I wanted to make it easier for mappers to do just that and made an...

Using OpenStreetMap data to Map Critical Infrastructure During Disasters

Jan 24, 2025 · Rachel Stevenson

This presentation will discuss how Emergency Managers can Use Open Street Map Data, to Identify and Map the 4 Critical Lifeline sectors that impact all of society.

OpenStreetMap US Tech Updates

Jan 24, 2025 · Quincy Morgan and Jake Low

OpenStreetMap US Working Groups Overview

Jan 24, 2025 · OpenStreetMap US Staff

Pedestrian Working Group Update

Jan 24, 2025 · Jacob Hall

Since its formation in March 2024, the Pedestrian Working Group has brought together community members interested in mapping pedestrian infrastructure in the U.S. to develop common goals.

Trails Working Group Update

Jan 24, 2025 · Jake Low

Meta-YouthMappers Walkabout Project

Jan 24, 2025 · Alex McDonald and Chad Blevins

This collaboration between GW YouthMappers and Meta is expanding across the US! Students trace and validate pedestrian features into OSM, while developing their skills and building community.

Where to Map? for Community OSM Projects

Jan 24, 2025 · Jennifer Miller

You’re doing a community mapping project! Now, what area will you map? This talk presents a decision-making method called the criteria-alternatives matrix to help your group make a good choice.

OpenStreetMap US Board Updates

Jan 24, 2025 · OpenStreetMap US Board

Building Map Ready Pedestrian Data

Jan 24, 2025 · Yunzhi Lin

What features should be included on a map to enhance safety and efficiency for pedestrian navigation? This talk will explore methodologies for generating and ensuring the quality of pedestrian data.

Developing Skyway, an OpenStreetMap data conversion tool

Jan 24, 2025 · Jacob Hall

Skyway is a new tool for converting OpenStreetMap data between common formats. In this talk I’ll discuss what I’ve learned in the process of developing it, and the plans I have for...

Rising Waters, 3D Worlds: Cesium-OSM-Powered Flood Simulations

Jan 24, 2025 · Michael Mann and Joy Mann

We showcase a flood simulator using Cesium’s 3D OSM tiles and dynamic water modeling, visualizing sea-level rise scenarios for immersive, interactive exploration of real-world flood impacts.

Imports - Three Tips for Working With Open Data

Jan 24, 2025 · Ben Coleman

This presentation will share three tips for working with license-compatible open data, including strategies for profiling and exploration, validation, and advocating for more open data to be shared.

Goodbye Daylight, Hello Overture: Migrating from one QA'd OpenStreetMap distribution to another

Jan 24, 2025 · Jennings Anderson

Daylight v1.58 was the last. However, the QA and validation processes have not gone away. Today, all of the same high quality OSM data is available as GeoParquet in the Overture base...

Making maps with Ultra

Jan 24, 2025 · Daniel Schep

In this talk I will introduce Ultra, Née Overpass Ultra, and demonstrate it’s capabilities. I will also compare & contrast it to other tools such as Overpass Turbo, geojson.io, and Maputnik.

CycleOSMData - A Python Package to Extract Structure Bicycle Infrastructure Data

Jan 24, 2025 · Daniel Patterson

CycleOSMData is a Python library for extracting bike infrastructure data from OSM PBF files. It pulls data on both sides of roads, detailing cyclist protection levels to support safe urban planning.

15 Years of OpenStreetMap US: Looking Ahead

Jan 24, 2025 · Maggie Cawley and Alyssa Castronuovo

SliceOSM Office Hours

Jan 25, 2025 · Brandon Liu

Workshop: Charting the Woods of West Virginia and Beyond

Jan 25, 2025 · Attila Kun

In a follow-up to his Friday talk, join Attila Kun for a demonstration and discussion of forest landcover mapping.

OSM Sandbox and Public Domain Map Workshop

Jan 25, 2025 · Quincy Morgan

Underground Truth: How to Map a Pipeline

Jan 25, 2025 · Clay Smalley

How many pipelines are in your backyard? Uncle Sam knows! Learn how to leverage government data to map missing fossil fuel pipelines on OSM.

OpenHistoricalMap Office Hours

Jan 25, 2025 · Minh Nguyễn

Join the OpenHistoricalMap community for our annual informal office hours. Get advice from fellow mappers, brainstorm some focus areas for the coming year, and give feedback to the OHM advisory group.

Organize and analyze OpenStreetMap data using PostGIS and QGIS

Jan 25, 2025 · Sean Whitcomb

OpenStreetMap isn’t just a map - it’s a massive database of geographic information. Learn how to organize, analyze, and visualize OSM data using PostGIS and QGIS software. If participating, please try to...

MapRoulette and OSMCha Office Hours

Jan 25, 2025 · Jake Low

State of the Map US 2025 Info Session

Jan 25, 2025 · Sean Whitcomb and Clay Smalley

Thinking about participating in State of the Map US 2025 in Boston? Come ask questions and brainstorm ideas for sessions.

The Americana Map

The US OpenStreetMap community has been working on a map suited to the cartographic needs and traditions of the United States. It's a great way to explore OpenStreetMap data through a US lens. Learn More

Thank you to our Members

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

Welcome to the home of open mapping in the United States

Our Work

Charter Projects

Community Projects

Get Involved

Conferences & Events

Upcoming events

The Americana Map

Thank you to our Members

Strategic Organizational Members

Thank you to our event sponsors

Platinum Sponsors — State of the Map US 2024