Last official estimated population of Pike County was 28,736 (year 2014)[1]. This was 0.009% of total US population and 0.2% of total Ohio state population. Area of Pike County is 444.0 mi² (=1149.9 km²), in this year population density was 64.72 p/mi². If population growth rate would be same as in period 2010-2014 (+0.02%/yr), Pike County population in 2026 would be 28,817 [0].
Historical population of Pike County for period 1820-2014 [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

[1820-1830] +3.54 %/yr
[1830-1840] +2.39 %/yr
[1840-1850] +3.69 %/yr
[1850-1860] +2.22 %/yr
[1860-1870] +1.25 %/yr
[1870-1880] +1.5 %/yr
[1880-1890] -0.25 %/yr
[1890-1900] +0.39 %/yr
[1900-1910] -1.44 %/yr
[1910-1920] -1.05 %/yr
[1920-1930] -0.2 %/yr
[1930-1940] +1.51 %/yr
[1940-1950] -0.98 %/yr
[1950-1960] +2.87 %/yr
[1960-1970] -0.14 %/yr
[1970-1980] +1.78 %/yr
[1980-1990] +0.62 %/yr
[1990-2000] +1.31 %/yr
[2000-2005] +0.48 %/yr
[2005-2010] +0.29 %/yr
[2010-2014] +0.02 %/yr
Looking for settlements in Pike County? Visit this page: Settlements in Pike County, OH
Population of Pike County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 899 | 763 | 1,662 |
| 5 to 9 | 999 | 893 | 1,892 |
| 10 to 14 | 1088 | 916 | 2,004 |
| 15 to 19 | 922 | 883 | 1,805 |
| 20 to 24 | 859 | 820 | 1,679 |
| 25 to 29 | 734 | 755 | 1,489 |
| 30 to 34 | 792 | 825 | 1,617 |
| 35 to 39 | 846 | 881 | 1,727 |
| 40 to 44 | 917 | 977 | 1,894 |
| 45 to 49 | 951 | 955 | 1,906 |
| 50 to 54 | 1076 | 1034 | 2,110 |
| 55 to 59 | 1056 | 1067 | 2,123 |
| 60 to 64 | 909 | 849 | 1,758 |
| 65 to 69 | 721 | 773 | 1,494 |
| 70 to 74 | 491 | 602 | 1,093 |
| 75 to 79 | 330 | 446 | 776 |
| 80 to 84 | 244 | 362 | 606 |
| 85+ | 226 | 395 | 621 |
Pike 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 | 13931 | 14070 | 28,001 |
| WAC | 13750 | 13916 | 27,666 |
| NHWAC | 13635 | 13804 | 27,439 |
| WA | 13495 | 13675 | 27,170 |
| NHWA | 13393 | 13586 | 26,979 |
| BAC | 278 | 238 | 516 |
| TOM | 260 | 248 | 508 |
| NHBAC | 263 | 220 | 483 |
| NHTOM | 246 | 223 | 469 |
| IAC | 205 | 210 | 415 |
| NHIAC | 195 | 190 | 385 |
| BA | 166 | 134 | 300 |
| NHBA | 160 | 130 | 290 |
| H | 129 | 126 | 255 |
| HWAC | 115 | 112 | 227 |
| HWA | 102 | 89 | 191 |
| IA | 80 | 80 | 160 |
| NHIA | 74 | 73 | 147 |
| AAC | 59 | 83 | 142 |
| NHAAC | 55 | 82 | 137 |
| AA | 31 | 56 | 87 |
| NHAA | 30 | 56 | 86 |
| NAC | 35 | 8 | 43 |
| NHNAC | 34 | 6 | 40 |
| HTOM | 14 | 25 | 39 |
| HBAC | 15 | 18 | 33 |
| NA | 28 | 3 | 31 |
| NHNA | 28 | 2 | 30 |
| HIAC | 10 | 20 | 30 |
| HIA | 6 | 7 | 13 |
| HBA | 6 | 4 | 10 |
| HAAC | 4 | 1 | 5 |
| HNAC | 1 | 2 | 3 |
| HAA | 1 | 0 | 1 |
| HNA | 0 | 1 | 1 |
• Scioto County population
18 mi,
170°
• Ross County
17.4 mi,
358°
• Pickaway County
39.9 mi,
0°
• Highland County
30.4 mi,
284°
• Greenup County
35.7 mi,
169°
• Jackson County
23.9 mi,
99°
• Fayette County
39.9 mi,
326°
• Adams County
28.1 mi,
234°
• Lewis County
39.9 mi,
205°
• Vinton County
32.8 mi,
67°
[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
*Ross, Scioto; Adams Ohio Notes
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