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Buffalo, New York population, 2010 to 2025

Buffalo, New York: 274,613 residents in 2025, up 5.1% since 2010. Explore Census city-limit population data.

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What the data shows

  • Buffalo, New York: 261K in 2010, 275K in 2025. It peaked at 278K in 2020.

About this chart

Buffalo, New York, ended 2025 below its 2020 population high: 274,613 residents, compared with 277,750 at the peak. Its city-limit count moved from 261,280 in 2010 to 274,613 in 2025. The largest annual change in the displayed series occurred in 2020: 22,433 more residents than the preceding estimate. That change coincides with the transition between Census vintages.

These figures measure Buffalo within its Census incorporated-place boundaries, not the population of the surrounding metropolitan area. They are July 1 estimates, combining Vintage 2020 for 2010–2019 and Vintage 2025 for 2020 onward. City boundaries can change, and newer Census vintages revise estimates; a shift in this series cannot be attributed to migration alone. Consolidated-city balances exclude separately incorporated places. The table preserves exact resident counts, while the chart follows the annual sequence.

The data

Source: U.S. Census Bureau, city and town population estimates (Vintage 2020 for 2010–2019, Vintage 2025 for 2020–2025), incorporated places, July 1, people. Retrieved November 5, 2026. Census incorporated-place boundaries, not a metropolitan area. Boundary changes and revisions between Census vintages can affect comparisons. Consolidated city balances exclude separately incorporated places.

Buffalo, New York population, City-limit residents, 2010 to 2025, 2010–2025
DateBuffalo, New York
2010261K
2011261K
2012260K
2013260K
2014260K
2015258K
2016257K
2017256K
2018256K
2019255K
2020278K
2021278K
2022276K
2023276K
2024275K
2025275K

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Suggested caption: “Buffalo: 277,750 at its 2020 peak; 274,613 in 2025.” Credit the source in your caption; it heads off the 'source?' comments.

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Frequently asked questions

What is the population of Buffalo?

Buffalo, New York, had an estimated 274,613 residents on July 1, 2025, according to the Census Bureau. This is the city-limit population, not the metro area.

Is Buffalo growing or shrinking?

Its city-limit count rose from 261,280 in 2010 to 274,613 in 2025, a 5.1% increase. The most recent year-to-year change was 709 fewer residents. Boundary changes and estimate revisions can affect comparisons.

How does Buffalo rank by population?

It ranked 83 among US incorporated places in the 2025 estimates used here. This is a city-limit ranking; a metro-area ranking would use a different geographic unit.

Where does this data come from?

U.S. Census Bureau, city and town population estimates (Vintage 2020 for 2010–2019, Vintage 2025 for 2020–2025), incorporated places, July 1, people. Retrieved November 5, 2026. Census incorporated-place boundaries, not a metropolitan area. Boundary changes and revisions between Census vintages can affect comparisons. Consolidated city balances exclude separately incorporated places. You can download the full table as a CSV from this page.

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