Geographical Information Systems
What is GIS?
A geographic information system (GIS) is an interactive framework for gathering, managing, and analyzing data for presentation in the form of layered mapping. Rooted in the science of geography, GIS integrates many types of data. It analyzes spatial location and organizes layers of information into visualizations using maps and 3D scenes. With this unique capability, GIS creates maps that reveal deep insights into data, such as patterns, relationships, and situations—helping users make informed decisions. 

GIS maps are composed of collections of similar geographic objects (features like boundaries, waterways, environmental zones, demographics, transportation, and recreation) arranged in layers over a base map of a geographic area. Layering gives GIS its unique display and analysis properties.

How the Town of Penfield uses GIS
GIS is a division of the Engineering Department responsible for providing all geographic data analysis and mapping for the Town. We use GIS to collect, organize, and visually present all types of data in the form of maps to help us interpret and understand relationships, patterns, and trends. 

A GIS coordinator is charged with using GIS technology to support the work of Town staff, boards, and committees to help them complete and communicate their work efficiently and effectively. 

The Town of Penfield uses GIS to: 
  • Create “Official Town Maps” of streets, points of interest and zoning
  • Map many aspects of the Town, including location of environmental features, infrastructure, open space, and school district boundaries
  • Help staff analyze applications for proposed development
  • Notify residents of upcoming meetings
  • Produce trail maps for hikers to use while exploring Town parks
  • Prepare for major Town events that require traffic planning, such as Independence Day

Public access to GIS
Penfield GIS Viewer (see sidebar)
Penfield residents may use a dedicated Penfield GIS Viewer on a digital platform built for PC and mobile devices to explore parcels within the town of Penfield.
Please direct inquiries and technical matters about the Penfield GIS Viewer to the Town of Penfield Engineering Department or (585) 340-8681.

Monroe County  GIS Viewer (see sidebar)
The Monroe County GIS offers users the opportunity to explore all of Monroe County and select local data features.