Population.us > Counties > Ohio > Seneca County

Population of Seneca County

Last official estimated population of Seneca County was 56,631 (year 2014)[1]. This was 0.018% of total US population and 0.5% of total Ohio state population. Area of Seneca County is 552.8 mi² (=1431.7 km²), in this year population density was 102.45 p/mi². If population growth rate would be same as in period 2010-2014 (-0.05%/yr), Seneca County population in 2022 would be 56,404 [0].


Historical population

Historical population of Seneca County for period 1830-2014 [1] , [2] , [3]:

Maps: Population, population density, population changes

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.

PopulationDensityChangesLegendsPosition

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Annual growth rate

[1830-1840] +13.39 %/yr
[1840-1850] +4.1 %/yr
[1850-1860] +1.31 %/yr
[1860-1870] -0.01 %/yr
[1870-1880] +1.83 %/yr
[1880-1890] +1.01 %/yr
[1890-1900] +0.07 %/yr
[1900-1910] +0.3 %/yr
[1910-1920] +0.18 %/yr
[1920-1930] +1.05 %/yr
[1930-1940] +0.12 %/yr
[1940-1950] +0.89 %/yr
[1950-1960] +1.14 %/yr
[1960-1970] +0.23 %/yr
[1970-1980] +0.2 %/yr
[1980-1990] -0.36 %/yr
[1990-2000] -0.18 %/yr
[2000-2005] -0.34 %/yr
[2005-2010] -0.32 %/yr
[2010-2014] -0.05 %/yr

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Demography

Population of Seneca County by age groups male (M) and female (F)[1b]

Age Gr. (M) (F) Total
0 to 4 1462 1375 2,837
5 to 9 1864 1700 3,564
10 to 14 1952 1842 3,794
15 to 19 2178 2012 4,190
20 to 24 2145 1958 4,103
25 to 29 1661 1530 3,191
30 to 34 1666 1497 3,163
35 to 39 1608 1600 3,208
40 to 44 1642 1542 3,184
45 to 49 1691 1658 3,349
50 to 54 2038 2005 4,043
55 to 59 2133 2061 4,194
60 to 64 1880 1890 3,770
65 to 69 1389 1475 2,864
70 to 74 951 1090 2,041
75 to 79 680 862 1,542
80 to 84 477 765 1,242
85+ 410 980 1,390

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
WAC 26710 26908 53,618
NH 26404 26569 52,973
WA 26222 26447 52,669
NHWAC 25402 25751 51,153
NHWA 24984 25358 50,342
H 1423 1273 2,696
HWAC 1308 1157 2,465
HWA 1238 1089 2,327
BAC 1176 967 2,143
NHBAC 1038 841 1,879
BA 820 627 1,447
NHBA 739 548 1,287
TOM 507 482 989
NHTOM 431 412 843
AAC 248 259 507
NHAAC 234 248 482
AA 196 205 401
NHAA 190 202 392
IAC 200 188 388
NHIAC 159 143 302
HBAC 138 126 264
HBA 81 79 160
HTOM 76 70 146
IA 75 70 145
NHIA 56 46 102
HIAC 41 45 86
HIA 19 24 43
NAC 18 23 41
NHNAC 13 14 27
HAAC 14 11 25
NA 7 11 18
HNAC 5 9 14
HNA 3 8 11
HAA 6 3 9
NHNA 4 3 7

Counties near Seneca County

Wood County population 30.6 mi, 302°
Richland County 38.8 mi, 128°
Hancock County 29.2 mi, 253°
Marion County 36.8 mi, 183°
Sandusky County 16.3 mi, 357°
Huron County 27.8 mi, 86°
Crawford County 21.5 mi, 150°
Ottawa County 30 mi, 11°
Hardin County 42.4 mi, 221°
Wyandot County 21.7 mi, 206°


Sources, notices

[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

*Sandusky Ohio Notes

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