(CO-99-4) County Population Estimates for July 1, 1999 and Demographic Components of Population Change: April 1, 1990 to July 1, 1999 (includes revised April 1, 1990 Population Estimates Base) Two additional components of demographic change--net federal movement and a residual--are not included in this table. Source: Population Estimates Program, Population Division, U.S. Census Bureau, Washington, DC 20233 Contact: Demographic Call Center Staff, 1-866-758-1060 Internet Release Date: March 9, 2000 4/1/90 Net Net Population International Domestic 7/1/99 Estimates Births Deaths Migration Migration FIPS State/County Code and Area Name Estimate Base 1990-99 1990-99 1990-99 1990-99 25 Massachusetts..................... 6,175,169 6,016,425 778,803 506,880 147,834 -244,494 25001 Barnstable County, MA............. 212,519 186,605 20,283 22,468 1,100 27,605 25003 Berkshire County, MA.............. 132,218 139,352 14,248 14,047 600 -7,517 25005 Bristol County, MA................ 520,258 506,325 65,050 44,477 -656 -4,258 25007 Dukes County, MA.................. 14,048 11,639 1,455 1,090 170 1,899 25009 Essex County, MA.................. 704,407 670,080 92,246 58,109 18,179 -15,829 25011 Franklin County, MA............... 70,806 70,086 7,584 6,090 380 -930 25013 Hampden County, MA................ 438,279 456,310 58,446 42,498 7,925 -40,570 25015 Hampshire County, MA.............. 150,892 146,568 13,434 10,554 1,376 580 25017 Middlesex County, MA.............. 1,426,606 1,398,468 181,530 106,085 39,416 -83,230 25019 Nantucket County, MA.............. 8,206 6,012 936 652 267 1,652 25021 Norfolk County, MA................ 643,580 616,087 78,286 51,587 15,218 -12,628 25023 Plymouth County, MA............... 473,026 435,276 60,553 33,921 4,485 7,937 25025 Suffolk County, MA................ 641,695 663,906 90,236 54,840 49,062 -104,942 25027 Worcester County, MA.............. 738,629 709,711 94,516 60,462 10,312 -14,263