How many people live in Montgomery County, NY?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 49,600 people living in Montgomery County, NY. That makes Montgomery County the 46th-most populous county in New York. It is home to 0.25% of people living in the state.
49.6K
population of Montgomery County, NY (2024)
0.25%
County share of the New York population (2024)
About 49,600 people lived in Montgomery County, NY in 2024.
Population estimates, 2000–2024
What are Montgomery County, NY’s age demographics?
About 9,900 Montgomery County, NY residents are aged 65 and older in 2024. That represents 20% of its population. For comparison, the age group represents 18.9% of New York’s population and 18% in the US overall.
Another 11,500 Montgomery County residents, or 23.2% 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 lower share of Montgomery County, NY's population is aged 25–44 than the US as a whole.
Population estimates by age group, (2024)
What are Montgomery County, NY’s racial and ethnic demographics?
Non-Hispanic white residents make up 78.1% of the Montgomery County, NY population, higher than the national share of 57.5%.
In contrast, Montgomery County’s non-Hispanic Black or African American population accounts for 2.8%, below the 12.6% nationwide, and the non-Hispanic Asian population makes up 1% of the county, compared with 6.5% 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.
Montgomery 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 Montgomery County, NY is Amsterdam with about 18,200 residents in 2024.
Cities and towns in Montgomery County, NY ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Amsterdam | 18,169 |
| 2. | Florida | 2,729 |
| 3. | Canajoharie | 2,064 |
| 4. | Fort Plain (pt.) | 1,994 |
| 5. | Root | 1,992 |
| 6. | St. Johnsville | 1,711 |
| 7. | Charleston | 1,346 |
| 8. | Hagaman | 1,118 |
| 9. | Palatine Bridge | 788 |
| 10. | Fultonville | 783 |
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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.
