Last official estimated population of McKean County was 43,354 (year 2014)[1]. This was 0.014% of total US population and 0.3% of total Pennsylvania state population. Area of McKean County is 984.2 mi² (=2549.1 km²), in this year population density was 44.05 p/mi². If population growth rate would be same as in period 2010-2014 (-0.06%/yr), McKean County population in 2026 would be 43,067 [0].
Historical population of McKean 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] +17.76 %/yr
[1820-1830] +7.05 %/yr
[1830-1840] +7.53 %/yr
[1840-1850] +5.85 %/yr
[1850-1860] +5.36 %/yr
[1860-1870] -0.04 %/yr
[1870-1880] +17.04 %/yr
[1880-1890] +0.97 %/yr
[1890-1900] +0.92 %/yr
[1900-1910] -0.7 %/yr
[1910-1920] +0.22 %/yr
[1920-1930] +1.21 %/yr
[1930-1940] +0.27 %/yr
[1940-1950] -0.01 %/yr
[1950-1960] -0.38 %/yr
[1960-1970] -0.49 %/yr
[1970-1980] -0.25 %/yr
[1980-1990] -0.71 %/yr
[1990-2000] -0.26 %/yr
[2000-2005] -0.76 %/yr
[2005-2010] -0.34 %/yr
[2010-2014] -0.06 %/yr
Looking for settlements in McKean County? Visit this page: Settlements in McKean County, PA
Population of McKean County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 1050 | 1033 | 2,083 |
| 5 to 9 | 1210 | 1149 | 2,359 |
| 10 to 14 | 1331 | 1176 | 2,507 |
| 15 to 19 | 1460 | 1358 | 2,818 |
| 20 to 24 | 1463 | 1284 | 2,747 |
| 25 to 29 | 1362 | 1071 | 2,433 |
| 30 to 34 | 1440 | 1043 | 2,483 |
| 35 to 39 | 1318 | 1123 | 2,441 |
| 40 to 44 | 1472 | 1317 | 2,789 |
| 45 to 49 | 1555 | 1330 | 2,885 |
| 50 to 54 | 1576 | 1518 | 3,094 |
| 55 to 59 | 1662 | 1662 | 3,324 |
| 60 to 64 | 1457 | 1400 | 2,857 |
| 65 to 69 | 1127 | 1211 | 2,338 |
| 70 to 74 | 867 | 916 | 1,783 |
| 75 to 79 | 617 | 801 | 1,418 |
| 80 to 84 | 431 | 641 | 1,072 |
| 85+ | 399 | 724 | 1,123 |
McKean 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 | 21166 | 20508 | 41,674 |
| WAC | 20623 | 20403 | 41,026 |
| WA | 20424 | 20212 | 40,636 |
| NHWAC | 20039 | 20196 | 40,235 |
| NHWA | 19851 | 20014 | 39,865 |
| BAC | 1058 | 245 | 1,303 |
| NHBAC | 1016 | 214 | 1,230 |
| BA | 969 | 152 | 1,121 |
| NHBA | 932 | 129 | 1,061 |
| H | 631 | 249 | 880 |
| HWAC | 584 | 207 | 791 |
| HWA | 573 | 198 | 771 |
| TOM | 209 | 210 | 419 |
| NHTOM | 198 | 197 | 395 |
| AAC | 174 | 177 | 351 |
| NHAAC | 168 | 173 | 341 |
| IAC | 146 | 134 | 280 |
| AA | 127 | 134 | 261 |
| NHAA | 125 | 131 | 256 |
| NHIAC | 137 | 114 | 251 |
| IA | 67 | 48 | 115 |
| NHIA | 59 | 36 | 95 |
| HBAC | 42 | 31 | 73 |
| HBA | 37 | 23 | 60 |
| HIAC | 9 | 20 | 29 |
| HTOM | 11 | 13 | 24 |
| NAC | 9 | 12 | 21 |
| HIA | 8 | 12 | 20 |
| NHNAC | 8 | 11 | 19 |
| HAAC | 6 | 4 | 10 |
| HAA | 2 | 3 | 5 |
| HNAC | 1 | 1 | 2 |
| NA | 1 | 1 | 2 |
| NHNA | 1 | 1 | 2 |
| HNA | 0 | 0 | 0 |
• Chautauqua County population
54.6 mi, 
308°
• Clearfield County
56.5 mi, 
174°
• Cattaraugus County
29.7 mi, 
351°
• Allegany County
41 mi, 
43°
• Jefferson County
52 mi, 
205°
• Warren County
38.2 mi, 
273°
• Elk County
27.1 mi, 
188°
• Potter County
35.2 mi, 
97°
• Forest County
40.7 mi, 
239°
• Cameron County
32.4 mi, 
143°
[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
*Lycoming Pennsylvania Notes
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