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Mapping Tompkins County ! 

GIS LogoWelcome to Tompkins County Geographic Information Services... a division of the Department of Information Technology Services (ITS).


Mission graphic imageOur Mission

The mission of Tompkins County GIS is to serve the Tompkins County Community through the distribution of relevant GIS data and mapping resources to assist departments and municipal stakeholders on an ongoing basis. Tompkins County GIS also focuses on the production and distribution of meaningful datasets, paper maps and interactive mapping applications for local businesses and residents.

Tompkins County began its investment in GIS in the mid 1990s with the conversion of the County's tax mapping paper archives to a multi-layered GIS dataset. Today, the County has developed a robust GIS that is available and used by many county departments, local governments, and the community at large.

News iconTo keep up with the latest info on GIS happenings in Tompkins County check out the new GIS News section.


About Us Icon- three figuresAbout Us

 The GIS Division serves as the lead agency for enterprise GIS development and data distribution. We provide GIS direction, GIS project assistance, and deploy GIS technology for county departments, other municipalities, and the public. We do this with the help of  key GIS Staff in other Departments and use every tool at our disposal to provide GIS resources for all!

As such, the team is currently responsible for:

  • Providing Assistance to county departments in deploying GIS data and
    applications to support departmental activities;
  • Development and maintenance of countywide address data;Globe with magnifier
  • Application support for public safety and emergency response;
  • Ad hoc map creation for County agencies, local governments, non-profit organizations, educational institutions, and the general public;
  • Data distribution through online data repositoriesl
  • Web application development and support for county departments, local governments, and the general public though our online map gallery;
  • Development of new geospatial datasets and mapping services as requested;
  • GIS software license Administration and;
  • Management and day-to-day maintenance of the County's Enterpise-wide GIS including all hardware and software products used therein.

We are continually improving our data-sets as well as providing access to aid in various projects around the community. Please feel free to contact us if you have a mapping project in mind or a data layer you would like to see.

Mapping Tompkins

Mapping Tompkins

One stop mapping portal for GIS maps and applications.

Tompkins County Open Data Portal

Search for data from various categories and download for free.

Sheriff Badge Graphic Sex Offender Search

Sex Offender Search

Search for Sex offenders near you. Sign up for
email alerts about sex offenders and learn how to educate children.

Download Parcel Data for 2016Data for Download 

Data Set IconOther Data Sets



State of the State 

Map imageWhat is GIS Anyway?

"At minimum, GIS is a technological field that incorporates geographical features with tabular data in order to map, analyze, and assess real-world problems.."  More on that here.