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 distinguished by its share of foreign-born residents, 10.3% of the population. 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 typical household here earns about $67,809, below the US median of $78,538. Poverty runs at 9.1%, below the national 12.4%. Median home value is $177,400, with typical rent around $870.
About 27.2% of adults 25 and older have a bachelor’s degree, below the 35.0% national figure. Remote work is below the national 14.0% at 9.2%, and the average commute runs about 22 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.