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Pittsburgh, PA MSA Regional Analytics
  -- Population & Components of Change; 2010-15

Components of Change: 7/1/2010-6/30/2015
Natural Change -15,750
  equals Births 119,943
  less Deaths 135,693
Net Migration 14,889
  equals net International Migration 17,941
  plus net Domestic Migration -3,052

The population of the Pittsburgh, PA MSA changed from 2,356,988 on 2010 to 2,353,045 in 2015 -- a change of -3,943 (-0.17%). This report provides a summary of how and why the population has changed during this period and what these factors suggest about future change.

Primary Contributing Factors to Change
The primary contributing factors resulting in population change are 1) natural change (births less deaths) and/or 2) net migration. Eight tables are presented below providing annual data for each component county of the metro and metro summary. The tables provide data on the total population, births, deaths, natural change (births less deaths), international migration, domestic migration and net migration.

From 2010 to 2015 (7/1/2010-6/30/2015), net migration (14,889) exceeded natural change (-15,750); but outbound net migration has been the primary contributing factor for the metro population change. Examine the metro by county tables below to learn about how each county contributes to the metro population growth or decline.

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Join in the weekly Data Analytics Lab sessions (Tuesdays, 3:00 pm ET) where we review demographic-economic characteristics and patterns for wide-ranging geography and updates/extensions to data provided here. No fee, no registration, see connectivity details.

Related Sections
  • Pittsburgh, PA MSA S&O Report
  • State of the States -- all states interactive table
  • Metro S&O Reports -- all metros interactive table
  • CountyTrends 2010-2015 -- all counties interactive table
  • CountyTrends -- multi-sourced county data
  • Regional Data Analytics Main

Table 1. Population          
Area NameGeoIDItem201020112012201320142015Chg 10-15%Chg 10-15
Allegheny County, PA42003P0000001 1,223,933 1,227,677 1,230,881 1,233,814 1,232,896 1,230,459 6,526 0.53
Armstrong County, PA42005P0000001 68,860 68,661 68,376 68,115 67,693 67,052 -1,808 -2.63
Beaver County, PA42007P0000001 170,611 170,375 170,271 170,072 169,338 168,871 -1,740 -1.02
Butler County, PA42019P0000001 184,115 184,761 185,109 185,370 186,386 186,818 2,703 1.47
Fayette County, PA42051P0000001 136,473 136,049 135,490 134,835 134,255 133,628 -2,845 -2.08
Washington County, PA42125P0000001 207,877 208,073 208,436 208,184 208,175 208,261 384 0.18
Westmoreland County, PA42129P0000001 365,119 364,566 363,252 361,128 359,353 357,956 -7,163 -1.96
Total P0000001 2,356,988 2,360,162 2,361,815 2,361,518 2,358,096 2,353,045 -3,943 -0.17
Table 2. Births          
Area NameGeoIDItem201020112012201320142015Sum11-15 
Allegheny County, PA42003B0000001 13,100 13,009 13,076 13,291 13,368 13,512 66,256 
Armstrong County, PA42005B0000001 728 687 705 727 616 658 3,393 
Beaver County, PA42007B0000001 1,808 1,719 1,671 1,765 1,688 1,713 8,556 
Butler County, PA42019B0000001 1,960 1,759 1,805 1,774 1,811 1,842 8,991 
Fayette County, PA42051B0000001 1,368 1,374 1,330 1,394 1,439 1,425 6,962 
Washington County, PA42125B0000001 1,912 1,893 2,052 1,997 2,033 2,042 10,017 
Westmoreland County, PA42129B0000001 3,300 3,187 3,135 3,171 3,131 3,144 15,768 
Total B0000001 24,176 23,628 23,774 24,119 24,086 24,336 119,943 
Table 3. Deaths          
Area NameGeoIDItem201020112012201320142015Sum11-15 
Allegheny County, PA42003D0000001 12,572 13,824 13,509 13,812 13,482 13,639 68,266 
Armstrong County, PA42005D0000001 876 808 857 839 846 875 4,225 
Beaver County, PA42007D0000001 1,676 1,996 2,089 2,223 2,071 2,067 10,446 
Butler County, PA42019D0000001 1,504 1,869 1,835 1,930 1,870 1,883 9,387 
Fayette County, PA42051D0000001 1,876 1,820 1,758 1,795 1,796 1,813 8,982 
Washington County, PA42125D0000001 2,128 2,490 2,467 2,586 2,501 2,473 12,517 
Westmoreland County, PA42129D0000001 3,928 4,390 4,307 4,414 4,385 4,374 21,870 
Total D0000001 24,560 27,197 26,822 27,599 26,951 27,124 135,693 
Table 4. Natural Change          
Area NameGeoIDItem201020112012201320142015Sum11-15 
Allegheny County, PA42003NC000001 528 -815 -433 -521 -114 -127 -2,010 
Armstrong County, PA42005NC000001 -148 -121 -152 -112 -230 -217 -832 
Beaver County, PA42007NC000001 132 -277 -418 -458 -383 -354 -1,890 
Butler County, PA42019NC000001 456 -110 -30 -156 -59 -41 -396 
Fayette County, PA42051NC000001 -508 -446 -428 -401 -357 -388 -2,020 
Washington County, PA42125NC000001 -216 -597 -415 -589 -468 -431 -2,500 
Westmoreland County, PA42129NC000001 -628 -1,203 -1,172 -1,243 -1,254 -1,230 -6,102 
Total NC000001 -384 -3,569 -3,048 -3,480 -2,865 -2,788 -15,750 
Table 5. International Migration          
Area NameGeoIDItem201020112012201320142015Sum11-15 
Allegheny County, PA42003MI000001 2,224 2,615 2,958 3,222 3,659 3,645 16,099 
Armstrong County, PA42005MI000001 12 6 5 5 5 5 26 
Beaver County, PA42007MI000001 8 28 53 49 54 54 238 
Butler County, PA42019MI000001 108 73 83 90 106 106 458 
Fayette County, PA42051MI000001 16 20 22 24 29 29 124 
Washington County, PA42125MI000001 52 79 102 109 135 135 560 
Westmoreland County, PA42129MI000001 68 69 84 86 98 99 436 
Total MI000001 2,488 2,890 3,307 3,585 4,086 4,073 17,941 
Table 6. Domestic Migration          
Area NameGeoIDItem201020112012201320142015Sum11-15 
Allegheny County, PA42003MD000001 -56 2,731 774 677 -3,612 -5,640 -5,070 
Armstrong County, PA42005MD000001 -172 -115 -134 -97 -135 -460 -941 
Beaver County, PA42007MD000001 224 119 269 202 -243 -191 156 
Butler County, PA42019MD000001 496 627 329 275 941 199 2,371 
Fayette County, PA42051MD000001 -24 85 -156 -289 -165 -366 -891 
Washington County, PA42125MD000001 428 766 679 254 440 345 2,484 
Westmoreland County, PA42129MD000001 476 851 -222 -994 -316 -480 -1,161 
Total MD000001 1,372 5,064 1,539 28 -3,090 -6,593 -3,052 
Table 7. Net Migration          
Area NameGeoIDItem201020112012201320142015Sum11-15 
Allegheny County, PA42003MN000001 2,168 5,346 3,732 3,899 47 -1,995 11,029 
Armstrong County, PA42005MN000001 -160 -109 -129 -92 -130 -455 -915 
Beaver County, PA42007MN000001 232 147 322 251 -189 -137 394 
Butler County, PA42019MN000001 604 700 412 365 1,047 305 2,829 
Fayette County, PA42051MN000001 -8 105 -134 -265 -136 -337 -767 
Washington County, PA42125MN000001 480 845 781 363 575 480 3,044 
Westmoreland County, PA42129MN000001 544 920 -138 -908 -218 -381 -725 
Total MN000001 3,860 7,954 4,846 3,613 996 -2,520 14,889 
Table 8. Group Quarters          
Area NameGeoIDItem201020112012201320142015Chg10-15%Chg 10-15
Allegheny County, PA42003GQ000001 35,054 35,620 35,963 36,797 36,766 36,751 1,697 4.84
Armstrong County, PA42005GQ000001 650 650 650 650 650 650 0 0.00
Beaver County, PA42007GQ000001 3,382 3,280 3,300 3,289 3,254 3,255 -127 -3.76
Butler County, PA42019GQ000001 5,490 5,479 5,485 5,397 5,813 5,817 327 5.96
Fayette County, PA42051GQ000001 4,216 4,234 4,242 4,219 4,243 4,244 28 0.66
Washington County, PA42125GQ000001 5,925 5,910 5,642 5,664 5,615 5,618 -307 -5.18
Westmoreland County, PA42129GQ000001 7,960 8,215 8,156 7,041 7,037 7,038 -922 -11.58
Total GQ000001 62,677 63,388 63,438 63,057 63,378 63,373 696 1.11

Source: developed by ProximityOne based on Census Bureau and other data.
  -- http://proximityone.com (888.364.7656)