Last official estimated population of Seneca County was 35,247 (year 2014)[1]. This was 0.011% of total US population and 0.2% of total New York state population. Area of Seneca County is 390.4 mi² (=1011.2 km²), in this year population density was 90.28 p/mi². If population growth rate would be same as in period 2010-2014 (-0%/yr), Seneca County population in 2024 would be 35,237 [0].
Historical population of Seneca 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] +3.58 %/yr
[1820-1830] -1.15 %/yr
[1830-1840] +1.69 %/yr
[1840-1850] +0.23 %/yr
[1850-1860] +1.01 %/yr
[1860-1870] -0.11 %/yr
[1870-1880] +0.51 %/yr
[1880-1890] -0.36 %/yr
[1890-1900] -0.04 %/yr
[1900-1910] -0.41 %/yr
[1910-1920] -0.86 %/yr
[1920-1930] +0.1 %/yr
[1930-1940] +0.3 %/yr
[1940-1950] +1.29 %/yr
[1950-1960] +0.9 %/yr
[1960-1970] +0.93 %/yr
[1970-1980] -0.39 %/yr
[1980-1990] -0.01 %/yr
[1990-2000] -0.11 %/yr
[2000-2005] +1.09 %/yr
[2005-2010] +0.04 %/yr
[2010-2014] -0 %/yr
Looking for settlements in Seneca County? Visit this page: Settlements in Seneca County, NY
Population of Seneca County by age groups male (M) and female (F)[1b]
Age Gr. | (M) | (F) | Total |
0 to 4 | 866 | 930 | 1,796 |
5 to 9 | 972 | 935 | 1,907 |
10 to 14 | 1047 | 971 | 2,018 |
15 to 19 | 1064 | 996 | 2,060 |
20 to 24 | 1510 | 1006 | 2,516 |
25 to 29 | 1491 | 983 | 2,474 |
30 to 34 | 1175 | 890 | 2,065 |
35 to 39 | 1014 | 803 | 1,817 |
40 to 44 | 1126 | 983 | 2,109 |
45 to 49 | 1187 | 1054 | 2,241 |
50 to 54 | 1388 | 1292 | 2,680 |
55 to 59 | 1413 | 1333 | 2,746 |
60 to 64 | 1167 | 1208 | 2,375 |
65 to 69 | 995 | 1069 | 2,064 |
70 to 74 | 695 | 719 | 1,414 |
75 to 79 | 473 | 512 | 985 |
80 to 84 | 329 | 421 | 750 |
85+ | 312 | 555 | 867 |
Seneca 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 | 17476 | 16320 | 33,796 |
WAC | 16358 | 16197 | 32,555 |
WA | 16104 | 15973 | 32,077 |
NHWAC | 15768 | 15886 | 31,654 |
NHWA | 15533 | 15679 | 31,212 |
BAC | 1763 | 386 | 2,149 |
NHBAC | 1619 | 350 | 1,969 |
BA | 1614 | 258 | 1,872 |
NHBA | 1481 | 232 | 1,713 |
H | 748 | 340 | 1,088 |
HWAC | 590 | 311 | 901 |
HWA | 571 | 294 | 865 |
TOM | 268 | 240 | 508 |
NHTOM | 245 | 222 | 467 |
AAC | 176 | 180 | 356 |
NHAAC | 166 | 177 | 343 |
IAC | 192 | 127 | 319 |
NHIAC | 167 | 119 | 286 |
AA | 137 | 142 | 279 |
NHAA | 129 | 141 | 270 |
HBAC | 144 | 36 | 180 |
HBA | 133 | 26 | 159 |
IA | 99 | 47 | 146 |
NHIA | 86 | 46 | 132 |
HTOM | 23 | 18 | 41 |
HIAC | 25 | 8 | 33 |
NAC | 8 | 11 | 19 |
NHNAC | 5 | 11 | 16 |
HIA | 13 | 1 | 14 |
HAAC | 10 | 3 | 13 |
HAA | 8 | 1 | 9 |
HNAC | 3 | 0 | 3 |
NA | 2 | 0 | 2 |
NHNA | 2 | 0 | 2 |
HNA | 0 | 0 | 0 |
• Onondaga County population
35.5 mi, 64°
• Ontario County
24.7 mi, 281°
• Tompkins County
29 mi, 141°
• Steuben County
45.6 mi, 218°
• Chemung County
43.5 mi, 174°
• Cayuga County
20.2 mi, 39°
• Livingston County
48 mi, 265°
• Cortland County
40.3 mi, 108°
• Yates County
17.2 mi, 234°
• Schuyler County
25.7 mi, 192°
[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
*Cayuga New York Notes
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