Maps and Data
The Tompkins County Department of Planning and Sustainability maintains a Geographic Information System (GIS) that collects, maintains, and prepares maps of geographic data. Most of the Department's GIS function is centered on data that support the Department's on-going planning activities. As a result, the Department of Planning and Sustainability produces a variety of maps for use by the general public. The maps are intended for citizen planners and the general public to help them plan in their communities.
Beginning in 2019 and continuing through 2021, free GIS services are available to municipalities. For more information please review the 2021 guidelines.
Custom maps, analysis, and data services are offered by County GIS analysts by appointment.
Please call 274-5418 for a consultation.
The Department of Planning and Sustainability maintains two interactive maps:
Other online web maps for our region can be found on the Tompkins-Ithaca Collaborative Maps webpage. This site contains a variety of maps from the County, the City of Ithaca, and the Town of Dryden.
The Department of Planning and Sustainability produced a land use and land cover data set of Tompkins County in 1995, 2007, and 2013. The 2013 data set used the 2012 natural color ortho-imagery. The Department is currently updating the land use land cover data using 2015 imagery. Plans are to have this data available before the end of 2016.
The most recent Tompkins County Land Use and Land Cover map can be seen here. A table summarizing changes in land use/cover over time can be viewed here.
The land use and land cover classification system that was designed for the 1995 project to meet the needs of the users of these data was used for the 2007 and 2013 data. High resolution natural color digital orthoimagery acquired from the NYS Office of Cyber Security and Critical Infrastructure Coordination (CSCIC), and a number of other secondary digital data sources (wetlands, hydrology, tax parcel and planimetric base data) were used to interpret and delineate land use and land cover directly on-screen.
In 1968, the Land Use and Natural Resource Inventory (LUNR), a state-wide land use and land cover mapping project, used aerial photographs to identify 130 land use and land cover classes. The Tompkins County land use and land cover classification system is designed to be comparable with the LUNR classification system allowing users to analyze changes in land use and land cover over a nearly 50-year time period.
If you are looking for a map or data about a specific topic, try the links on the left. Custom maps and geospatial analysis can be produced and plotted for a fee for public or not-for-profit agencies as time permits.
American Community Survey
The American Community Survey (ACS) is a new approach to producing information about the characteristics of local communities. Beginning with data collected in 2005, the ACS releases annual estimates of social, housing, and economic characteristics for Tompkins County. For smaller geographic areas, the ACS will accumulate data over 3-year and 5-year intervals to produce estimates for smaller geographic areas including census tracts and block groups. Links to documents that summarize 1-year Tompkins County ACS data are provided below..
Demographic and Housing Estimates such as sex, age, and race.
Selected Economic Characteristics such as occupation, income, and poverty status.
Selected Housing Characteristics such as mortgage costs, gross rent, and year structure built.
Selected Social Characteristics such as school enrollment, marital status, and ancestry.
2010 Decennial Census
In 2010, the Census Bureau conducted its decennial census and disseminated information about the population and housing. Some of the general results for Tompkins County are shown here. More detailed information about the county and the towns and villages in the county can be found here. Check the U.S. Census Bureau website for additional information.
2000 Decennial Census
In 2000, the Census Bureau conducted its decennial census and disseminated information about the population and housing. Some of the general results for Tompkins County are shown here. Some of the results for Tompkins County the towns and villages in the county can be found here.
2000 Special Tabulation: College Students
In 2003, the Tompkins County Planning Department requested and received a Special Tabulation from the Census Bureau. This Special Tabulation (#137) provided separate sets of the 2000 Census data for “college students” and “non-college students” for Tompkins County and by municipality. “College student” was defined as those answering “yes” to the question: “at any time since February 1, 2000, has this person attended regular school or college?” for ages 17 or over. The results of the Special Tabulation can be found here.