Niagara County, New York Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 18th-largest in New York
The population of Niagara County, New York is 211,341 as of the 2023 American Community Survey, making it the 18th-largest county in New York. The median household income is $67,809, the median home value is $177,400, and the median age is 43.2.
The population of Niagara County has declined 3.2% since 2010 (216,474 → 209,570), a -0.23% annualized rate.
211,341
Population
-0.23%
Annual growth
405
People / sq mi
$67,809
Median Income
$177,400
Median Home Value
Niagara County covers 522 sq mi of land at 404.6 people per square mile.
About Niagara County, NY
Niagara County is a county in New York with a population of 211,341. It ranks #18 among counties in New York by population. The median age is 43.2, older than the national median. The population is 49.1% male and 50.9% female.
The median household income in Niagara County is $67,809, below the US median of $74,580. 9.1% of residents live below the federal poverty level. Home values sit at a median of $177,400, with monthly rent averaging $870. The homeownership rate of 70.9% is higher than the national rate of 64.8%.
Educational attainment in Niagara County reflects 27.2% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 9.2% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 22.3 minutes each way.
Niagara County Population History (2010-2024)
The county of Niagara County had a population of 216,474 in 2010 and 209,570 in 2024, a -3.2% growth over 14 years. The peak was 216,474 in 2010. Average annual growth rate: -0.23%.
209,570
Population (2024)
216,474
Population (2010)
216,474
Peak (2010)
-0.23%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 216,474 |
| 2011 | 215,726 |
| 2012 | 214,724 |
| 2013 | 214,125 |
| 2014 | 213,331 |
| 2015 | 212,391 |
| 2016 | 211,555 |
| 2017 | 210,911 |
| 2018 | 210,300 |
| 2019 | 209,563 |
| 2020 | 212,133 |
| 2021 | 211,754 |
| 2022 | 210,466 |
| 2023 | 209,684 |
| 2024 | 209,570 |
Race & Ethnicity
| White | 83.9% |
| Black or African American | 6.6% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.2% |
| Two or More Races | 0.0% |
Age & Sex
43.2
Median Age
50.9%
Female
49.1%
Male
20.2%
Age 65+
Age Distribution
Children (under 15): 16.4% · Seniors (65+): 20.2%
Income & Poverty
| Median household income | $67,809$-16,769 vs state |
| Mean household income | $87,095 |
| Per-capita income | $37,898 |
| Poverty rate | 9.1%-0.7% vs state |
| Unemployment rate | 3.6% |
| Employment-to-population | 57.3% |
Top Industries by Employment
The largest employment sector in Niagara County is professional & business services, accounting for 24.2% of workers.
How residents commute
0.8%
Drive alone
2.6%
Carpool
78.1%
Public transit
9.2%
Work from home
22.3 min
Avg commute
Housing
$177,400$-225,600 vs state
Median home value
$870
Median rent
70.9%
Homeownership rate
100,335
Total housing units
91.2%
Occupied
8.8%
Vacant
29.1%
Renter-occupied
Social & access
97.5%
With health insurance
92.4%
With broadband internet
10.3%
Foreign-born
7.7%
Veterans (18+)
15.2%
With a disability
94.6%
Speak language other than English at home
Education
92.0%
High School+
27.2%
Bachelor's+
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County rankings
Frequently Asked Questions
Niagara County, New York has a population of 211,341 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 18th-largest county in New York. Population density is 405 people per square mile.
The population of Niagara County has declined 3.2% since 2010 (216,474 → 209,570), a -0.23% annualized rate.
The median household income in Niagara County, New York is $67,809, with mean (average) household income of $87,095 and per-capita income of $37,898. 9.1% of residents live below the federal poverty level.
In Niagara County, the largest racial and ethnic groups are White (83.9%), Black or African American (6.6%), Hispanic or Latino (2.2%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Niagara County, New York is 43.2 years. Residents are 50.9% female and 49.1% male.
The median home value in Niagara County is $177,400 and median monthly rent is $870. 70.9% of occupied housing units are owner-occupied. The county has 100,335 total housing units, 8.8% of which are vacant.
The largest employment sector in Niagara County, New York is professional, scientific, and management services, employing 24.2% of workers. The unemployment rate is 3.6%.
New York is among the largest cities associated with Niagara County, New York, with a population of 8,516,202.
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.