_id year county_id county_name pop_source population pct_change change_since_base_yr 1 1790 42017 Bucks Regular 25401 2 1790 34005 Burlington Regular 18095 3 1790 34007 Camden Regular 0 4 1790 42029 Chester Regular 27937 5 1790 42045 Delaware Regular 9483 6 1790 34015 Gloucester Regular 13363 7 1790 34021 Mercer Regular 0 8 1790 42091 Montgomery Regular 22929 9 1790 42101 Philadelphia Regular 54391 10 1800 42017 Bucks Regular 27496 11 1800 34005 Burlington Regular 21521 12 1800 34007 Camden Regular 0 13 1800 42029 Chester Regular 32093 14 1800 42045 Delaware Regular 12809 15 1800 34015 Gloucester Regular 16115 16 1800 34021 Mercer Regular 0 17 1800 42091 Montgomery Regular 24150 18 1800 42101 Philadelphia Regular 81009 19 1810 42017 Bucks Regular 32371 20 1810 34005 Burlington Regular 24979 21 1810 34007 Camden Regular 0 22 1810 42029 Chester Regular 39596 23 1810 42045 Delaware Regular 14734 24 1810 34015 Gloucester Regular 19744 25 1810 34021 Mercer Regular 0 26 1810 42091 Montgomery Regular 29703 27 1810 42101 Philadelphia Regular 111210 28 1820 42017 Bucks Regular 37842 29 1820 34005 Burlington Regular 28822 30 1820 34007 Camden Regular 0 31 1820 42029 Chester Regular 44451 32 1820 42045 Delaware Regular 14810 33 1820 34015 Gloucester Regular 23089 34 1820 34021 Mercer Regular 0 35 1820 42091 Montgomery Regular 35793 36 1820 42101 Philadelphia Regular 137097 37 1830 42017 Bucks Regular 45745 38 1830 34005 Burlington Regular 31107 39 1830 34007 Camden Regular 0 40 1830 42029 Chester Regular 50910 41 1830 42045 Delaware Regular 17323 42 1830 34015 Gloucester Regular 28431 43 1830 34021 Mercer Regular 0 44 1830 42091 Montgomery Regular 39406 45 1830 42101 Philadelphia Regular 188797 46 1840 42017 Bucks Regular 48107 47 1840 34005 Burlington Regular 32831 48 1840 34007 Camden Regular 0 49 1840 42029 Chester Regular 57515 50 1840 42045 Delaware Regular 19791 51 1840 34015 Gloucester Regular 25438 52 1840 34021 Mercer Regular 21502 53 1840 42091 Montgomery Regular 47241 54 1840 42101 Philadelphia Regular 258037 55 1850 42017 Bucks Regular 56091 56 1850 34005 Burlington Regular 43203 57 1850 34007 Camden Regular 25422 58 1850 42029 Chester Regular 66438 59 1850 42045 Delaware Regular 24679 60 1850 34015 Gloucester Regular 14655 61 1850 34021 Mercer Regular 27992 62 1850 42091 Montgomery Regular 58291 63 1850 42101 Philadelphia Regular 408762 64 1860 42017 Bucks Regular 63578 65 1860 34005 Burlington Regular 49730 66 1860 34007 Camden Regular 34457 67 1860 42029 Chester Regular 74578 68 1860 42045 Delaware Regular 30597 69 1860 34015 Gloucester Regular 18444 70 1860 34021 Mercer Regular 37419 71 1860 42091 Montgomery Regular 70500 72 1860 42101 Philadelphia Regular 565529 73 1870 42017 Bucks Regular 64336 74 1870 34005 Burlington Regular 53639 75 1870 34007 Camden Regular 46193 76 1870 42029 Chester Regular 77805 77 1870 42045 Delaware Regular 39403 78 1870 34015 Gloucester Regular 21562 79 1870 34021 Mercer Regular 46386 80 1870 42091 Montgomery Regular 81612 81 1870 42101 Philadelphia Regular 674022 82 1880 42017 Bucks Regular 68656 83 1880 34005 Burlington Regular 55402 84 1880 34007 Camden Regular 62942 85 1880 42029 Chester Regular 83481 86 1880 42045 Delaware Regular 56101 87 1880 34015 Gloucester Regular 25886 88 1880 34021 Mercer Regular 58061 89 1880 42091 Montgomery Regular 96494 90 1880 42101 Philadelphia Regular 847170 91 1890 42017 Bucks Regular 70615 92 1890 34005 Burlington Regular 58528 93 1890 34007 Camden Regular 87687 94 1890 42029 Chester Regular 89377 95 1890 42045 Delaware Regular 74683 96 1890 34015 Gloucester Regular 28649 97 1890 34021 Mercer Regular 79978 98 1890 42091 Montgomery Regular 123290 99 1890 42101 Philadelphia Regular 1046964 100 1900 42017 Bucks Regular 71190 101 1900 34005 Burlington Regular 58241 102 1900 34007 Camden Regular 107643 103 1900 42029 Chester Regular 95695 104 1900 42045 Delaware Regular 94762 105 1900 34015 Gloucester Regular 31905 106 1900 34021 Mercer Regular 95365 107 1900 42091 Montgomery Regular 138995 108 1900 42101 Philadelphia Regular 1293697 109 1910 42017 Bucks Regular 76530 110 1910 34005 Burlington Regular 66565 111 1910 34007 Camden Regular 142029 112 1910 42029 Chester Regular 109213 113 1910 42045 Delaware Regular 117906 114 1910 34015 Gloucester Regular 37368 115 1910 34021 Mercer Regular 125657 116 1910 42091 Montgomery Regular 169590 117 1910 42101 Philadelphia Regular 1549008 118 1920 42017 Bucks Regular 82476 119 1920 34005 Burlington Regular 81770 120 1920 34007 Camden Regular 190508 121 1920 42029 Chester Regular 115120 122 1920 42045 Delaware Regular 173084 123 1920 34015 Gloucester Regular 48224 124 1920 34021 Mercer Regular 159881 125 1920 42091 Montgomery Regular 199310 126 1920 42101 Philadelphia Regular 1823779 127 1930 42017 Bucks Regular 96727 128 1930 34005 Burlington Regular 93541 129 1930 34007 Camden Regular 252312 130 1930 42029 Chester Regular 126629 131 1930 42045 Delaware Regular 280264 132 1930 34015 Gloucester Regular 70802 133 1930 34021 Mercer Regular 187143 134 1930 42091 Montgomery Regular 265804 135 1930 42101 Philadelphia Regular 1950961 136 1940 42017 Bucks Regular 107715 137 1940 34005 Burlington Regular 97013 138 1940 34007 Camden Regular 255727 139 1940 42029 Chester Regular 135626 140 1940 42045 Delaware Regular 310756 141 1940 34015 Gloucester Regular 72219 142 1940 34021 Mercer Regular 197318 143 1940 42091 Montgomery Regular 289247 144 1940 42101 Philadelphia Regular 1931334 145 1950 42017 Bucks Regular 144620 146 1950 34005 Burlington Regular 135910 147 1950 34007 Camden Regular 300743 148 1950 42029 Chester Regular 159141 149 1950 42045 Delaware Regular 414234 150 1950 34015 Gloucester Regular 91727 151 1950 34021 Mercer Regular 229781 152 1950 42091 Montgomery Regular 353068 153 1950 42101 Philadelphia Regular 2071605 154 1960 42017 Bucks Regular 308567 155 1960 34005 Burlington Regular 224499 156 1960 34007 Camden Regular 392035 157 1960 42029 Chester Regular 210608 158 1960 42045 Delaware Regular 553154 159 1960 34015 Gloucester Regular 134840 160 1960 34021 Mercer Regular 266392 161 1960 42091 Montgomery Regular 516682 162 1960 42101 Philadelphia Regular 2002512 163 1970 42017 Bucks Regular 415056 164 1970 34005 Burlington Regular 323132 165 1970 34007 Camden Regular 456291 166 1970 42029 Chester Regular 278311 167 1970 42045 Delaware Regular 600035 168 1970 34015 Gloucester Regular 172681 169 1970 34021 Mercer Regular 303968 170 1970 42091 Montgomery Regular 623799 171 1970 42101 Philadelphia Regular 1948609 172 1980 42017 Bucks Regular 479211 173 1980 34005 Burlington Regular 362542 174 1980 34007 Camden Regular 471650 175 1980 42029 Chester Regular 316660 176 1980 42045 Delaware Regular 555007 177 1980 34015 Gloucester Regular 199917 178 1980 34021 Mercer Regular 307863 179 1980 42091 Montgomery Regular 643621 180 1980 42101 Philadelphia Regular 1688210 181 1990 42017 Bucks Regular 541174 182 1990 34005 Burlington Regular 395066 183 1990 34007 Camden Regular 502824 184 1990 42029 Chester Regular 376396 185 1990 42045 Delaware Regular 547651 186 1990 34015 Gloucester Regular 230082 187 1990 34021 Mercer Regular 325824 188 1990 42091 Montgomery Regular 678111 189 1990 42101 Philadelphia Regular 1585577 190 2000 42017 Bucks Regular 599454 0 0 191 2000 34005 Burlington Regular 424547 0 0 192 2000 34007 Camden Regular 507648 0 0 193 2000 42029 Chester Regular 435829 0 0 194 2000 42045 Delaware Regular 552092 0 0 195 2000 34015 Gloucester Regular 256340 0 0 196 2000 34021 Mercer Regular 351561 0 0 197 2000 42091 Montgomery Regular 750975 0 0 198 2000 42101 Philadelphia Regular 1513800 0 0 199 2001 42017 Bucks Regular 603241 0.006 3787 200 2001 34005 Burlington Regular 429655 0.012 5108 201 2001 34007 Camden Regular 507830 0.000 182 202 2001 42029 Chester Regular 441763 0.014 5934 203 2001 42045 Delaware Regular 552663 0.001 571 204 2001 34015 Gloucester Regular 259050 0.011 2710 205 2001 34021 Mercer Regular 353965 0.007 2404 206 2001 42091 Montgomery Regular 757879 0.009 6904 207 2001 42101 Philadelphia Regular 1512507 -0.001 -1293 208 2002 42017 Bucks Regular 607465 0.007 8011 209 2002 34005 Burlington Regular 436318 0.016 11771 210 2002 34007 Camden Regular 509783 0.004 2135 211 2002 42029 Chester Regular 448746 0.016 12917 212 2002 42045 Delaware Regular 552588 0.000 496 213 2002 34015 Gloucester Regular 263518 0.017 7178 214 2002 34021 Mercer Regular 356098 0.006 4537 215 2002 42091 Montgomery Regular 763218 0.007 12243 216 2002 42101 Philadelphia Regular 1510550 -0.001 -3250 217 2003 42017 Bucks Regular 610131 0.004 10677 218 2003 34005 Burlington Regular 442581 0.014 18034 219 2003 34007 Camden Regular 510584 0.002 2936 220 2003 42029 Chester Regular 455877 0.016 20048 221 2003 42045 Delaware Regular 552355 0.000 263 222 2003 34015 Gloucester Regular 268257 0.018 11917 223 2003 34021 Mercer Regular 358669 0.007 7108 224 2003 42091 Montgomery Regular 768240 0.007 17265 225 2003 42101 Philadelphia Regular 1510068 0.000 -3732 226 2004 42017 Bucks Regular 613691 0.006 14237 227 2004 34005 Burlington Regular 446041 0.008 21494 228 2004 34007 Camden Regular 512710 0.004 5062 229 2004 42029 Chester Regular 463900 0.018 28071 230 2004 42045 Delaware Regular 551681 -0.001 -411 231 2004 34015 Gloucester Regular 273020 0.018 16680 232 2004 34021 Mercer Regular 361225 0.007 9664 233 2004 42091 Montgomery Regular 770700 0.003 19725 234 2004 42101 Philadelphia Regular 1514658 0.003 858 235 2005 42017 Bucks Regular 616047 0.004 16593 236 2005 34005 Burlington Regular 446462 0.001 21915 237 2005 34007 Camden Regular 514960 0.004 7312 238 2005 42029 Chester Regular 471562 0.017 35733 239 2005 42045 Delaware Regular 552126 0.001 34 240 2005 34015 Gloucester Regular 276680 0.013 20340 241 2005 34021 Mercer Regular 361882 0.002 10321 242 2005 42091 Montgomery Regular 772142 0.002 21167 243 2005 42101 Philadelphia Regular 1517628 0.002 3828 244 2006 42017 Bucks Regular 619245 0.005 19791 245 2006 34005 Burlington Regular 447131 0.001 22584 246 2006 34007 Camden Regular 516547 0.003 8899 247 2006 42029 Chester Regular 480200 0.018 44371 248 2006 42045 Delaware Regular 553664 0.003 1572 249 2006 34015 Gloucester Regular 281936 0.019 25596 250 2006 34021 Mercer Regular 362813 0.003 11252 251 2006 42091 Montgomery Regular 772968 0.001 21993 252 2006 42101 Philadelphia Regular 1520251 0.002 6451 253 2007 42017 Bucks Regular 621334 0.003 21880 254 2007 34005 Burlington Regular 446314 -0.002 21767 255 2007 34007 Camden Regular 517559 0.002 9911 256 2007 42029 Chester Regular 487567 0.015 51738 257 2007 42045 Delaware Regular 555019 0.002 2927 258 2007 34015 Gloucester Regular 286056 0.015 29716 259 2007 34021 Mercer Regular 363402 0.002 11841 260 2007 42091 Montgomery Regular 775631 0.003 24656 261 2007 42101 Philadelphia Regular 1530031 0.006 16231 262 2008 42017 Bucks Regular 623562 0.004 24108 263 2008 34005 Burlington Regular 445492 -0.002 20945 264 2008 34007 Camden Regular 517739 0.000 10091 265 2008 42029 Chester Regular 493281 0.012 57452 266 2008 42045 Delaware Regular 556251 0.002 4159 267 2008 34015 Gloucester Regular 288168 0.007 31828 268 2008 34021 Mercer Regular 364571 0.003 13010 269 2008 42091 Montgomery Regular 778452 0.004 27477 270 2008 42101 Philadelphia Regular 1540351 0.007 26551 271 2009 42017 Bucks Regular 626015 0.004 26561 272 2009 34005 Burlington Regular 446108 0.001 21561 273 2009 34007 Camden Regular 517879 0.000 10231 274 2009 42029 Chester Regular 498894 0.011 63065 275 2009 42045 Delaware Regular 558028 0.003 5936 276 2009 34015 Gloucester Regular 289920 0.006 33580 277 2009 34021 Mercer Regular 366222 0.005 14661 278 2009 42091 Montgomery Regular 782339 0.005 31364 279 2009 42101 Philadelphia Regular 1547297 0.005 33497 280 2010 42017 Bucks Regular 625385 -0.001 25931 281 2010 34005 Burlington Regular 449129 0.007 24582 282 2010 34007 Camden Regular 513275 -0.009 5627 283 2010 42029 Chester Regular 499925 0.002 64096 284 2010 42045 Delaware Regular 558981 0.002 6889 285 2010 34015 Gloucester Regular 289150 -0.003 32810 286 2010 34021 Mercer Regular 367713 0.004 16152 287 2010 42091 Montgomery Regular 800874 0.024 49899 288 2010 42101 Philadelphia Regular 1528283 -0.012 14483 289 2011 42017 Bucks Intercensal 628418 0.005 28964 290 2011 34005 Burlington Intercensal 452132 0.007 27585 291 2011 34007 Camden Intercensal 514660 0.003 7012 292 2011 42029 Chester Intercensal 504458 0.009 68629 293 2011 42045 Delaware Intercensal 560561 0.003 8469 294 2011 34015 Gloucester Intercensal 290855 0.006 34515 295 2011 34021 Mercer Intercensal 369858 0.006 18297 296 2011 42091 Montgomery Intercensal 808211 0.009 57236 297 2011 42101 Philadelphia Intercensal 1543445 0.010 29645 298 2012 42017 Bucks Intercensal 629665 0.002 30211 299 2012 34005 Burlington Intercensal 454059 0.004 29512 300 2012 34007 Camden Intercensal 515332 0.001 7684 301 2012 42029 Chester Intercensal 507797 0.007 71968 302 2012 42045 Delaware Intercensal 563070 0.004 10978 303 2012 34015 Gloucester Intercensal 291915 0.004 35575 304 2012 34021 Mercer Intercensal 373046 0.009 21485 305 2012 42091 Montgomery Intercensal 813970 0.007 62995 306 2012 42101 Philadelphia Intercensal 1557188 0.009 43388 307 2013 42017 Bucks Intercensal 631192 0.002 31738 308 2013 34005 Burlington Intercensal 453890 0.000 29343 309 2013 34007 Camden Intercensal 515320 0.000 7672 310 2013 42029 Chester Intercensal 511625 0.008 75796 311 2013 42045 Delaware Intercensal 564819 0.003 12727 312 2013 34015 Gloucester Intercensal 292933 0.003 36593 313 2013 34021 Mercer Intercensal 375914 0.008 24353 314 2013 42091 Montgomery Intercensal 820242 0.008 69267 315 2013 42101 Philadelphia Intercensal 1566081 0.006 52281 316 2014 42017 Bucks Intercensal 633289 0.003 33835 317 2014 34005 Burlington Intercensal 456210 0.005 31663 318 2014 34007 Camden Intercensal 515387 0.000 7739 319 2014 42029 Chester Intercensal 516077 0.009 80248 320 2014 42045 Delaware Intercensal 567032 0.004 14940 321 2014 34015 Gloucester Intercensal 294662 0.006 38322 322 2014 34021 Mercer Intercensal 377373 0.004 25812 323 2014 42091 Montgomery Intercensal 825762 0.007 74787 324 2014 42101 Philadelphia Intercensal 1575581 0.006 61781 325 2015 42017 Bucks Intercensal 635145 0.003 35691 326 2015 34005 Burlington Intercensal 455816 -0.001 31269 327 2015 34007 Camden Intercensal 516378 0.002 8730 328 2015 42029 Chester Intercensal 519174 0.006 83345 329 2015 42045 Delaware Intercensal 568577 0.003 16485 330 2015 34015 Gloucester Intercensal 295864 0.004 39524 331 2015 34021 Mercer Intercensal 378569 0.003 27008 332 2015 42091 Montgomery Intercensal 829530 0.005 78555 333 2015 42101 Philadelphia Intercensal 1583576 0.005 69776 334 2016 42017 Bucks Intercensal 637653 0.004 38199 335 2016 34005 Burlington Intercensal 456513 0.002 31966 336 2016 34007 Camden Intercensal 517383 0.002 9735 337 2016 42029 Chester Intercensal 521623 0.005 85794 338 2016 42045 Delaware Intercensal 569985 0.002 17893 339 2016 34015 Gloucester Intercensal 296561 0.002 40221 340 2016 34021 Mercer Intercensal 380199 0.004 28638 341 2016 42091 Montgomery Intercensal 834515 0.006 83540 342 2016 42101 Philadelphia Intercensal 1590773 0.005 76973 343 2017 42017 Bucks Intercensal 640390 0.004 40936 344 2017 34005 Burlington Intercensal 457156 0.001 32609 345 2017 34007 Camden Intercensal 518394 0.002 10746 346 2017 42029 Chester Intercensal 524688 0.006 88859 347 2017 42045 Delaware Intercensal 571119 0.002 19027 348 2017 34015 Gloucester Intercensal 297775 0.004 41435 349 2017 34021 Mercer Intercensal 382721 0.007 31160 350 2017 42091 Montgomery Intercensal 841246 0.008 90271 351 2017 42101 Philadelphia Intercensal 1598134 0.005 84334 352 2018 42017 Bucks Intercensal 643075 0.004 43621 353 2018 34005 Burlington Intercensal 457862 0.002 33315 354 2018 34007 Camden Intercensal 520231 0.004 12583 355 2018 42029 Chester Intercensal 528663 0.008 92834 356 2018 42045 Delaware Intercensal 573590 0.004 21498 357 2018 34015 Gloucester Intercensal 299363 0.005 43023 358 2018 34021 Mercer Intercensal 384914 0.006 33353 359 2018 42091 Montgomery Intercensal 846010 0.006 95035 360 2018 42101 Philadelphia Intercensal 1605122 0.004 91322 361 2019 42017 Bucks Intercensal 645193 0.003 45739 362 2019 34005 Burlington Intercensal 460099 0.005 35552 363 2019 34007 Camden Intercensal 521690 0.003 14042 364 2019 42029 Chester Intercensal 532243 0.007 96414 365 2019 42045 Delaware Intercensal 575569 0.003 23477 366 2019 34015 Gloucester Intercensal 300373 0.003 44033 367 2019 34021 Mercer Intercensal 386203 0.003 34642 368 2019 42091 Montgomery Intercensal 851716 0.007 100741 369 2019 42101 Philadelphia Intercensal 1605405 0.000 91605 370 2020 42017 Bucks Regular 646212 0.002 46758 371 2020 34005 Burlington Regular 461700 0.003 37153 372 2020 34007 Camden Regular 523239 0.003 15591 373 2020 42029 Chester Regular 534858 0.005 99029 374 2020 42045 Delaware Regular 576505 0.002 24413 375 2020 34015 Gloucester Regular 302564 0.007 46224 376 2020 34021 Mercer Regular 386434 0.001 34873 377 2020 42091 Montgomery Regular 856829 0.006 105854 378 2020 42101 Philadelphia Regular 1600737 -0.003 86937 379 2021 42017 Bucks Regular 647792 0.002 48338 380 2021 34005 Burlington Regular 464490 0.006 39943 381 2021 34007 Camden Regular 524366 0.002 16718 382 2021 42029 Chester Regular 541131 0.012 105302 383 2021 42045 Delaware Regular 577178 0.001 25086 384 2021 34015 Gloucester Regular 304700 0.007 48360 385 2021 34021 Mercer Regular 382139 -0.011 30578 386 2021 42091 Montgomery Regular 864286 0.009 113311 387 2021 42101 Philadelphia Regular 1590224 -0.007 76424 388 2022 42017 Bucks Regular 646351 -0.002 46897 389 2022 34005 Burlington Regular 467822 0.007 43275 390 2022 34007 Camden Regular 525833 0.003 18185 391 2022 42029 Chester Regular 547131 0.011 111302 392 2022 42045 Delaware Regular 576666 -0.001 24574 393 2022 34015 Gloucester Regular 306718 0.007 50378 394 2022 34021 Mercer Regular 387024 0.013 35463 395 2022 42091 Montgomery Regular 865483 0.001 114508 396 2022 42101 Philadelphia Regular 1572341 -0.011 58541 397 2023 42017 Bucks Regular 647751 0.002 48297 398 2023 34005 Burlington Regular 472273 0.010 47726 399 2023 34007 Camden Regular 529977 0.008 22329 400 2023 42029 Chester Regular 551316 0.008 115487 401 2023 42045 Delaware Regular 579086 0.004 26994 402 2023 34015 Gloucester Regular 308693 0.006 52353 403 2023 34021 Mercer Regular 391369 0.011 39808 404 2023 42091 Montgomery Regular 870108 0.005 119133 405 2023 42101 Philadelphia Regular 1565822 -0.004 52022 406 2024 42017 Bucks Regular 648416 0.001 48962 407 2024 34005 Burlington Regular 477522 0.011 52975 408 2024 34007 Camden Regular 533595 0.007 25947 409 2024 42029 Chester Regular 554530 0.006 118701 410 2024 42045 Delaware Regular 581416 0.004 29324 411 2024 34015 Gloucester Regular 311263 0.008 54923 412 2024 34021 Mercer Regular 397329 0.015 45768 413 2024 42091 Montgomery Regular 875160 0.006 124185 414 2024 42101 Philadelphia Regular 1572735 0.004 58935 415 2025 42017 Bucks Regular 647828 -0.001 48374 416 2025 34005 Burlington Regular 481439 0.008 56892 417 2025 34007 Camden Regular 535799 0.004 28151 418 2025 42029 Chester Regular 557116 0.005 121287 419 2025 42045 Delaware Regular 580937 -0.001 28845 420 2025 34015 Gloucester Regular 312638 0.004 56298 421 2025 34021 Mercer Regular 399289 0.005 47728 422 2025 42091 Montgomery Regular 877643 0.003 126668 423 2025 42101 Philadelphia Regular 1574281 0.001 60481