Last official estimated population of Niagara County was 216,506 (year 2014)[1]. This was 0.068% of total US population and 1.1% of total New York state population. Area of Niagara County is 1,139.7 mi² (=2951.7 km²), in this year population density was 189.97 p/mi². If population growth rate would be same as in period 2010-2014 (+0%/yr), Niagara County population in 2026 would be 216,617 [0].
Historical population of Niagara County for period 1810-2014 [1] , [2] , [3]:
Estimated population for 2014[1]. Population density is in p./sq.mi [4]. Changes are for period 2010-2015. Value is %/year. Boundary lines are approx. 2012 [5]. Click on flag to hide it.
Population • Density • Changes • Legends • Position

[1810-1820] +9.87 %/yr
[1820-1830] -2.16 %/yr
[1830-1840] +5.35 %/yr
[1840-1850] +3.11 %/yr
[1850-1860] +1.77 %/yr
[1860-1870] +0.01 %/yr
[1870-1880] +0.72 %/yr
[1880-1890] +1.44 %/yr
[1890-1900] +1.84 %/yr
[1900-1910] +2.07 %/yr
[1910-1920] +2.58 %/yr
[1920-1930] +2.32 %/yr
[1930-1940] +0.7 %/yr
[1940-1950] +1.73 %/yr
[1950-1960] +2.46 %/yr
[1960-1970] -0.27 %/yr
[1970-1980] -0.36 %/yr
[1980-1990] -0.29 %/yr
[1990-2000] -0.04 %/yr
[2000-2005] -0.27 %/yr
[2005-2010] -0.03 %/yr
[2010-2014] +0 %/yr
Looking for settlements in Niagara County? Visit this page: Settlements in Niagara County, NY
Population of Niagara County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 5653 | 5369 | 11,022 |
| 5 to 9 | 5841 | 5769 | 11,610 |
| 10 to 14 | 6530 | 6243 | 12,773 |
| 15 to 19 | 6807 | 6478 | 13,285 |
| 20 to 24 | 7126 | 7115 | 14,241 |
| 25 to 29 | 6710 | 6490 | 13,200 |
| 30 to 34 | 6001 | 6136 | 12,137 |
| 35 to 39 | 5603 | 5848 | 11,451 |
| 40 to 44 | 6250 | 6396 | 12,646 |
| 45 to 49 | 7062 | 7537 | 14,599 |
| 50 to 54 | 8489 | 8910 | 17,399 |
| 55 to 59 | 8674 | 8915 | 17,589 |
| 60 to 64 | 7175 | 7347 | 14,522 |
| 65 to 69 | 5685 | 6085 | 11,770 |
| 70 to 74 | 3866 | 4572 | 8,438 |
| 75 to 79 | 2699 | 3512 | 6,211 |
| 80 to 84 | 1989 | 3000 | 4,989 |
| 85+ | 1846 | 3797 | 5,643 |
Niagara County resident population estimates by Sex, Race, and Hispanic Origin[1b]. For full list of abbrevations see: population.us/about page.
| Race | Male | Female | Total |
| NH | 101096 | 106783 | 207,879 |
| WAC | 94163 | 98966 | 193,129 |
| WA | 91932 | 96683 | 188,615 |
| NHWAC | 91664 | 96692 | 188,356 |
| NHWA | 89627 | 94614 | 184,241 |
| BAC | 8907 | 9394 | 18,301 |
| NHBAC | 8491 | 8952 | 17,443 |
| BA | 7388 | 7801 | 15,189 |
| NHBA | 7105 | 7502 | 14,607 |
| H | 2910 | 2736 | 5,646 |
| TOM | 2424 | 2470 | 4,894 |
| HWAC | 2499 | 2274 | 4,773 |
| NHTOM | 2219 | 2257 | 4,476 |
| HWA | 2305 | 2069 | 4,374 |
| IAC | 1809 | 1952 | 3,761 |
| NHIAC | 1652 | 1754 | 3,406 |
| AAC | 1521 | 1648 | 3,169 |
| NHAAC | 1487 | 1619 | 3,106 |
| IA | 1134 | 1288 | 2,422 |
| AA | 1084 | 1241 | 2,325 |
| NHAA | 1069 | 1229 | 2,298 |
| NHIA | 1038 | 1152 | 2,190 |
| HBAC | 416 | 442 | 858 |
| HBA | 283 | 299 | 582 |
| HTOM | 205 | 213 | 418 |
| HIAC | 157 | 198 | 355 |
| HIA | 96 | 136 | 232 |
| NAC | 120 | 111 | 231 |
| NHNAC | 108 | 102 | 210 |
| NA | 44 | 36 | 80 |
| NHNA | 38 | 29 | 67 |
| HAAC | 34 | 29 | 63 |
| HAA | 15 | 12 | 27 |
| HNAC | 12 | 9 | 21 |
| HNA | 6 | 7 | 13 |
• Erie County population
48.6 mi,
179°
• Monroe County
56.5 mi,
89°
• Chautauqua County
85.5 mi,
201°
• Ontario County
85.7 mi,
118°
• Wayne County
86.7 mi,
89°
• Cattaraugus County
84.4 mi,
175°
• Livingston County
72.1 mi,
134°
• Genesee County
43.6 mi,
136°
• Orleans County
28.4 mi,
83°
• Wyoming County
59.4 mi,
151°
[0] Calculated by population.us from last known population growth rate, not official data.
[1] County population - 2014, archived from the original, retrieved 02/23/2016
[1b] Annual County Resident Population Estimates by Age, Sex, Race, and Hispanic Origin, (used only data for 2014) archived from the original, retrieved 02/23/2016
[2] County population - 2000-2010, archived from the original, retrieved 02/23/2016
[3] Population of States and Counties of the United States: 1790 to 1992, PDF, 15 Mb, census.gov, retrieved 02/23/2016
[4] County area, latitude longitude data, retrieved 02/23/2016
[5] County boundaries, CSV files on boundaries.us, retrived 03/18/2016
*Ontario New York Notes
Page generated in 0.007 seconds© 2016 population.us | Terms of use | Contact