There are 9 cities in Putnam County, New York.

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City
Rank
State
2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Mahopac1New York8,7748,914 1,6625.28
Lake Carmel2New York8,0898,287 1,5675.16
Putnam Lake3New York3,8263,943 9963.84
Brewster Hill4New York2,5682,574 2,9520.87
Brewster5New York2,4932,506-0.32%5,0880.49
Cold Spring6New York1,9961,988-0.05%3,3600.59
Peach Lake7New York1,3491,932 5062.66
Nelsonville8New York6346230.16%6131.03
Carmel Hamlet9New York8.34
showing: 9 rows

Cities in Putnam County, New York by Population (2024)

What is the largest city in Putnam County, New York?

Mahopac is the largest city in Putnam County.

What is the smallest city in Putnam County, New York?

Carmel Hamlet is the smallest city in Putnam County.

How many cities are in Putnam County?

There are 9 cities in Putnam County, New York.

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