A geographic information system (GIS) is a computer system for capturing, storing and displaying many different kinds of data on a single map.
For example, it can combine data about a community's housing density, traffic patterns, schools and public transportation. Or, it can display information about farms, factories, power lines, wetlands and wildlife.
Virtually any combination of data can be collected on a GIS map, making it easier for planners and local officials to study the relationship between all of the issues, analyze their patterns and trends, and then make informed decisions on behalf of citizens.
The resources below may help you find the GIS information you need.
Note: TCRPC can't guarantee the accuracy of data from external sources. Please use it at your own discretion.
Questions? Please email GIS Coordinator Tom Edinger or call (717) 234-2639.
What is GIS?
Video by Esri
- American Planning Association's "Great Places in America"
- Federal Highway Administration - Census Transportation Planning Products
- Federal Highway Administration - GIS in Transportation
- HUD - Location Affordability Portal
- Multimodal Project Management System Interactive Query (MPMS-IQ)
- PennDOT - County Type 10 Maps
- PennDOT - Project Planning
- Transportation Improvement Program (TIP) - Map Viewer
- National Land Cover Database (NLCD)
- Natural Resources Conservation Service - Geospatial Data Gateway
- OnTheMap - LEHD data
- PA Mapping & Geographic Information Council (PaMAGIC)
- PA Spatial Data Access (PASDA)
- Pennsylvania State Data Center
- State Geospatial Coordinating Board
- US Census - American Fact Finder
- US Census Explorer
- What is GIS? (esri.com)