Plats, Maps and GIS

The Boulder County Community Planning & Permitting office at 2045 13th St., Boulder is open to the public on Monday, Wednesday, and Thursday from 8 a.m. to 3 p.m., and on Tuesday from 10 a.m. to 3 p.m. Appointments are available on Tuesday but are not required. Schedule an appointment.

Plats, Maps and GIS

Find maps and GIS (Geographic Information System) data for Boulder County. Use these tools to find information related to property, zoning, parks, trails, open space, crime, elections, energy efficiency, and more.

Boulder County GIS

GIS technology is an integral part of many Boulder County functions. Learn more about Boulder County’s open data catalog and available GIS data for download.

Land Use Planning Maps

Review GIS data and maps used by the Community Planning & Permitting department for zoning, comprehensive plans, and land use code.

Mountain Addressing System

The Boulder County Mountain Addressing System is based on a mile-point/street-name system designed to expedite emergency response.

Natural Disaster Maps

View interactive and PDF maps related to natural disasters in Boulder County like the Fourmile Canyon Fire and Front Range Extreme Rain and Flood Event of 2013.

Public Health and Safety Data

Boulder County collects and maintains data on a range of health issues and provides this information to individuals, groups, programs, and agencies in the community. This includes Youth Risk Behavior data and Sex Offender Registry.

Open Space Maps

View interactive maps, PDF maps, and other geography-based information related to Boulder County open space properties and trails.

Roads and Transportation Maps

View maps related to bicycling, traffic volume, snowplowing priority, and road and regional trail projects.