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Niagara County, NY Demographics

Niagara County, NY is the 18th most populous of 62 counties in New York, with 212,666 residents across 522 square miles. That is about 407 people per square mile.

At the 2020 census

Population 212,666
Land area 522 sq mi
Density 407 / sq mi

Data: 2020 Census · American Community Survey 2024

How Niagara County compares to the US

We're computing this county's comparison table — check back shortly. Population, land area, and density above are already exact.

Central Location: Niagara County, NY

Measured from the county's main population center using 2020 census blocks.

We're computing the drive-time and radius areas around Niagara County, NY — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.

Census tracts in Niagara County, NY

Name Population Sq mi Per sq mi
Census Tract 227.02 7,035 27.1 260
Census Tract 234.01 6,903 22.2 311
Census Tract 242.01 6,609 28.8 229
Census Tract 240.01 5,962 69.2 86
Census Tract 243.03 5,743 39.7 145
Census Tract 226.02 5,709 6.0 952
Census Tract 244.05 5,510 25.9 213
Census Tract 234.04 5,174 9.3 558
Census Tract 227.17 5,074 11.7 433
Census Tract 239.02 5,003 1.3 3,754
Census Tract 227.14 4,854 4.7 1,028
Census Tract 244.04 4,775 4.1 1,161
Census Tract 243.02 4,600 48.6 95
Census Tract 246 4,507 1.6 2,769
Census Tract 234.05 4,275 1.2 3,461
Census Tract 234.02 4,211 12.2 346
Census Tract 239.01 3,923 1.3 3,005
Census Tract 233.02 3,824 0.7 5,158
Census Tract 236 3,803 3.0 1,278
Census Tract 245.02 3,772 30.0 126
Census Tract 241.01 3,700 52.2 71
Census Tract 227.16 3,609 2.5 1,463
Census Tract 222 3,549 0.8 4,362
Census Tract 228.03 3,499 0.9 3,978
Census Tract 217 3,358 1.9 1,732
Census Tract 201 3,333 0.9 3,648
Census Tract 238 3,306 0.6 5,814
Census Tract 220 3,272 1.1 2,937
Census Tract 227.13 3,229 2.3 1,431
Census Tract 228.04 3,155 1.5 2,174
Census Tract 244.06 3,128 6.0 520
Census Tract 233.01 2,941 2.1 1,409
Census Tract 229.02 2,892 1.1 2,541
Census Tract 232 2,849 0.7 3,903
Census Tract 202 2,811 0.9 3,194
Census Tract 225 2,808 0.5 5,297
Census Tract 210 2,778 0.3 9,070
Census Tract 245.01 2,741 3.1 886
Census Tract 235 2,725 1.9 1,457
Census Tract 242.02 2,695 23.0 117
Census Tract 207 2,650 0.2 11,246
Census Tract 241.02 2,597 37.1 70
Census Tract 244.01 2,531 1.1 2,308
Census Tract 209 2,442 0.3 8,738
Census Tract 223 2,440 0.5 4,966
Census Tract 231 2,372 0.4 5,531
Census Tract 212 2,310 0.6 3,618
Census Tract 203 2,288 2.4 946
Census Tract 229.01 2,256 0.7 3,390
Census Tract 213 2,224 0.2 11,700
Census Tract 230.01 2,208 0.4 6,296
Census Tract 221 2,201 0.7 3,265
Census Tract 226.01 2,194 3.5 629
Census Tract 237 2,116 0.3 6,093
Census Tract 214 2,113 0.2 8,533
Census Tract 205 2,065 0.5 4,265
Census Tract 227.15 1,865 6.7 277
Census Tract 224.01 1,817 0.7 2,682
Census Tract 240.02 1,729 0.9 1,983
Census Tract 204 1,492 0.3 5,916
Census Tract 211 1,444 0.8 1,792
Census Tract 206 1,276 0.2 6,614
Census Tract 243.01 1,247 0.8 1,534
Census Tract 9400.01 1,145 9.1 126
Census Tract 9401 0 0.8 0

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About this page

This page shows demographics for a US county from the 2020 census and the American Community Survey: population, land area, density, urban share, and how the county compares to national averages for income, housing, age, and more.

Counties subdivide into census tracts, listed below with their populations. The drive-time and radius tables measure the population around the county's main population center.

Read how BlockAtlas computes population within an area →