How many people live in Tompkins County, NY?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 105,600 people living in Tompkins County, NY. That makes Tompkins County the 28th-most populous county in New York. It is home to 0.53% of people living in the state.
106K
population of Tompkins County, NY (2024)
0.53%
County share of the New York population (2024)
About 105,600 people lived in Tompkins County, NY in 2024.
Population estimates, 2000–2024
What are Tompkins County, NY’s age demographics?
About 18,000 Tompkins County, NY residents are aged 65 and older in 2024. That represents 17% of its population. For comparison, the age group represents 18.9% of New York’s population and 18% in the US overall.
Another 14,600 Tompkins County residents, or 13.8% of the population, were children under 18. For comparison, the age group represents 20.1% of New York’s population and 21.6% in the US overall.
A higher share of Tompkins County, NY's population is aged 18–24 than the US as a whole.
Population estimates by age group, (2024)
What are Tompkins County, NY’s racial and ethnic demographics?
Non-Hispanic white residents make up 74.6% of the Tompkins County, NY population, higher than the national share of 57.5%. Tompkins County, NY also has a larger share of people identifying as non-Hispanic Asian (11.1%) than the US overall (6.5%).
In contrast, Tompkins County’s Hispanic population accounts for 6.7%, below the 20% nationwide, and the non-Hispanic Black or African American population makes up 4.1% of the county, compared with 12.6% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
Tompkins County, NY has a higher share of a non-Hispanic white population than New York as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Tompkins County, NY is Ithaca with about 33,800 residents in 2024.
Cities and towns in Tompkins County, NY ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Ithaca | 33,768 |
| 2. | Newfield | 4,922 |
| 3. | Cayuga Heights | 3,949 |
| 4. | Lansing | 3,893 |
| 5. | Danby | 3,348 |
| 6. | Enfield | 3,292 |
| 7. | Caroline | 3,264 |
| 8. | Groton | 2,127 |
| 9. | Dryden | 1,877 |
| 10. | Trumansburg | 1,787 |
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
