Last official estimated population of Allegheny County was 1,223,797 (year 2014)[1]. This was 0.384% of total US population and 9.6% of total Pennsylvania state population. Area of Allegheny County is 744.5 mi² (=1928.3 km²), in this year population density was 1,643.74 p/mi². If population growth rate would be same as in period 2010-2014 (+0.01%/yr), Allegheny County population in 2024 would be 1,224,920 [0].
Historical population of Allegheny County for period 1790-2014 [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
[1790-1800] +3.88 %/yr
[1800-1810] +5.31 %/yr
[1810-1820] +3.27 %/yr
[1820-1830] +3.77 %/yr
[1830-1840] +4.86 %/yr
[1840-1850] +5.46 %/yr
[1850-1860] +2.6 %/yr
[1860-1870] +3.9 %/yr
[1870-1880] +3.1 %/yr
[1880-1890] +4.49 %/yr
[1890-1900] +3.45 %/yr
[1900-1910] +2.77 %/yr
[1910-1920] +1.53 %/yr
[1920-1930] +1.49 %/yr
[1930-1940] +0.27 %/yr
[1940-1950] +0.71 %/yr
[1950-1960] +0.72 %/yr
[1960-1970] -0.15 %/yr
[1970-1980] -1.01 %/yr
[1980-1990] -0.81 %/yr
[1990-2000] -0.42 %/yr
[2000-2005] -0.74 %/yr
[2005-2010] -0.19 %/yr
[2010-2014] +0.01 %/yr
Looking for settlements in Allegheny County? Visit this page: Settlements in Allegheny County, PA
Population of Allegheny County by age groups male (M) and female (F)[1b]
Age Gr. | (M) | (F) | Total |
0 to 4 | 33045 | 31814 | 64,859 |
5 to 9 | 32253 | 30862 | 63,115 |
10 to 14 | 33363 | 32070 | 65,433 |
15 to 19 | 37415 | 36665 | 74,080 |
20 to 24 | 40320 | 40625 | 80,945 |
25 to 29 | 50054 | 49260 | 99,314 |
30 to 34 | 43085 | 41496 | 84,581 |
35 to 39 | 35076 | 34904 | 69,980 |
40 to 44 | 35203 | 35584 | 70,787 |
45 to 49 | 37392 | 39518 | 76,910 |
50 to 54 | 42701 | 46315 | 89,016 |
55 to 59 | 45601 | 49562 | 95,163 |
60 to 64 | 39665 | 43610 | 83,275 |
65 to 69 | 29295 | 34150 | 63,445 |
70 to 74 | 20211 | 26530 | 46,741 |
75 to 79 | 14946 | 21156 | 36,102 |
80 to 84 | 11818 | 18479 | 30,297 |
85+ | 11973 | 25239 | 37,212 |
Allegheny 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 | 581650 | 626228 | 1,207,878 |
WAC | 493962 | 525620 | 1,019,582 |
NHWAC | 483945 | 515972 | 999,917 |
WA | 483238 | 514319 | 997,557 |
NHWA | 474027 | 505505 | 979,532 |
BAC | 83809 | 97156 | 180,965 |
NHBAC | 81905 | 95022 | 176,927 |
BA | 75994 | 88617 | 164,611 |
NHBA | 74757 | 87195 | 161,952 |
AAC | 24383 | 24241 | 48,624 |
NHAAC | 24113 | 23974 | 48,087 |
AA | 21272 | 21052 | 42,324 |
NHAA | 21124 | 20908 | 42,032 |
TOM | 11813 | 12596 | 24,409 |
H | 11766 | 11611 | 23,377 |
NHTOM | 10918 | 11662 | 22,580 |
HWAC | 10017 | 9648 | 19,665 |
HWA | 9211 | 8814 | 18,025 |
IAC | 3554 | 4049 | 7,603 |
NHIAC | 3021 | 3537 | 6,558 |
HBAC | 1904 | 2134 | 4,038 |
HBA | 1237 | 1422 | 2,659 |
IA | 939 | 1033 | 1,972 |
HTOM | 895 | 934 | 1,829 |
NHIA | 692 | 808 | 1,500 |
HIAC | 533 | 512 | 1,045 |
NAC | 458 | 527 | 985 |
NHNAC | 390 | 407 | 797 |
HAAC | 270 | 267 | 537 |
HIA | 247 | 225 | 472 |
NA | 160 | 222 | 382 |
HAA | 148 | 144 | 292 |
NHNA | 132 | 150 | 282 |
HNAC | 68 | 120 | 188 |
HNA | 28 | 72 | 100 |
• Westmoreland County population
29.2 mi, 112°
• Washington County
23.5 mi, 217°
• Butler County
30.9 mi, 5°
• Beaver County
24.4 mi, 307°
• Fayette County
42.1 mi, 154°
• Lawrence County
40.6 mi, 332°
• Jefferson County
41.5 mi, 263°
• Armstrong County
36 mi, 48°
• Hancock County
31.2 mi, 276°
• Brooke County
34.3 mi, 246°
[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
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