Union Membership, Coverage, Density and Employment by Combined Statistical Area (CSA) and MSA, 2005  (details in table note)
Note: Sample size (Obs) for many cells are small and should be used with care.  
Area definitions beginning May 2004 do not match prior definitions.
Codes Metropolitan Area  Sector Obs Employment Members Covered %Mem %Cov
CSAs (combination of 2 or more Metropolitan Statistical Areas, shown below):
CSA Code
715 Boston-Worcester-Manchester, MS-NH-CT-ME Total 3,427 2,383,386 310,453 335,045 13 14.1
Private 3,001 2,098,872 149,243 161,432 7.1 7.7
Public 426 284,514 161,210 173,612 56.7 61.0
Priv Const 167 117,049 18,700 18,858 16 16.1
Priv Manuf 439 235,806 14,351 15,383 6.1 6.5
720 Bridgeport-New Haven-Stamford, CT Total 1,978 776,565 120,377 128,979 15.5 16.6
Private 1,696 666,005 49,149 53,334 7.4 8.0
Public 282 110,560 71,229 75,646 64.4 68.4
Priv Const 100 39,457 6,739 6,739 17.1 17.1
Priv Manuf 266 100,896 7,539 7,787 7.5 7.7
176 Chicago-Naperville-Michigan City, IL-IN-WI Total 4,223 4,034,363 693,812 718,101 17.2 17.8
Private 3,693 3,524,820 436,445 448,764 12.4 12.7
Public 530 509,543 257,367 269,336 50.5 52.9
Priv Const 245 240,594 94,724 97,175 39.4 40.4
Priv Manuf 583 547,647 100,817 104,079 18.4 19.0
184 Cleveland-Akron-Elyria, OH Total 1,329 1,231,232 190,824 199,249 15.5 16.2
Private 1,169 1,081,897 115,139 123,564 10.6 11.4
Public 160 149,334 75,685 75,685 50.7 50.7
Priv Const 52 47,203 14,252 14,252 30.2 30.2
Priv Manuf 214 200,862 38,148 39,134 19 19.5
212 Dayton-Springfield-Greenville, OH Total 428 397,875 60,129 67,984 15.1 17.1
Private 352 328,934 31,571 33,407 9.6 10.2
Public 76 68,941 28,558 34,578 41.4 50.2
Priv Const 17 16,558 1,845 1,845 11.1 11.1
Priv Manuf 84 79,045 13,842 13,842 17.5 17.5
216 Denver-Aurora-Boulder, CO Total 2,295 1,244,536 105,978 119,578 8.5 9.6
Private 1,933 1,051,634 53,550 59,133 5.1 5.6
Public 362 192,902 52,428 60,446 27.2 31.3
Priv Const 163 90,047 5,197 6,431 5.8 7.1
Priv Manuf 202 109,397 4,160 4,160 3.8 3.8
220 Detroit-Warren-Flint, MI Total 2,558 2,404,779 536,611 557,327 22.3 23.2
Private 2,218 2,086,866 343,404 357,994 16.5 17.2
Public 340 317,913 193,207 199,333 60.8 62.7
Priv Const 107 104,214 30,657 31,492 29.4 30.2
Priv Manuf 547 520,949 171,505 173,245 32.9 33.3
260 Fresno-Madera, CA Total 342 403,189 61,643 74,121 15.3 18.4
Private 285 328,262 31,266 35,158 9.5 10.7
Public 57 74,927 30,377 38,962 40.5 52.0
Priv Const 27 35,628 5,707 5,707 16 16.0
Priv Manuf 16 17,407 2,064 2,064 11.9 11.9
268 Greensboro--Winston-Salem-High Point, NC Total 557 572,024 13,656 15,414 2.4 2.7
Private 487 498,619 6,560 7,275 1.3 1.5
Public 70 73,405 7,096 8,139 9.7 11.1
Priv Const 45 48,938 1,203 1,203 2.5 2.5
Priv Manuf 113 112,309 2,374 2,374 2.1 2.1
290 Huntsville-Decatur, AL Total 327 285,073 27,258 28,156 9.6 9.9
Private 263 230,592 11,366 11,366 4.9 4.9
Public 64 54,481 15,893 16,791 29.2 30.8
Priv Const 23 20,321 551 551 2.7 2.7
Priv Manuf 72 63,811 7,680 7,680 12 12.0
294 Indianapolis-Anderson-Columbus, IN Total 917 851,217 88,803 100,158 10.4 11.8
Private 802 746,689 57,536 63,847 7.7 8.6
Public 115 104,527 31,267 36,311 29.9 34.7
Priv Const 60 58,361 5,612 5,612 9.6 9.6
Priv Manuf 142 132,764 28,720 30,503 21.6 23.0
304 Johnson City-Kingsport-Bristol, VA Total 127 123,246 8,873 8,873 7.2 7.2
Private 96 93,488 5,119 5,119 5.5 5.5
Public 31 29,758 3,755 3,755 12.6 12.6
Priv Const 8 7,630 0 0 0 0.0
Priv Manuf 23 21,804 2,489 2,489 11.4 11.4
348 Los Angeles-Long Beach-Riverside, CA Total 6,459 7,010,100 1,088,056 1,181,928 15.5 16.9
Private 5,588 6,075,461 559,114 618,943 9.2 10.2
Public 871 934,640 528,941 562,985 56.6 60.2
Priv Const 453 516,608 63,919 68,449 12.4 13.2
Priv Manuf 835 898,153 67,399 73,393 7.5 8.2
356 Macon-Warner-Robins-Fort Valley, GA Total 124 139,920 13,423 15,065 9.6 10.8
Private 98 112,263 9,581 9,581 8.5 8.5
Public 26 27,657 3,842 5,484 13.9 19.8
Priv Const 7 6,943 955 955 13.7 13.7
Priv Manuf 9 12,949 6,429 6,429 49.6 49.6
376 Milwaukee-Racine-Waukesha, WI Total 1,157 827,705 132,378 139,026 16 16.8
Private 1,039 743,119 89,086 93,409 12 12.6
Public 118 84,586 43,293 45,617 51.2 53.9
Priv Const 59 44,129 9,885 10,494 22.4 23.8
Priv Manuf 244 172,641 31,503 32,865 18.2 19.0
378 Minneapolis-St. Paul-St. Cloud, MN-WI Total 2,816 1,597,420 252,617 264,101 15.8 16.5
Private 2,455 1,393,131 141,676 145,525 10.2 10.4
Public 361 204,289 110,941 118,576 54.3 58.0
Priv Const 119 67,075 18,194 19,669 27.1 29.3
Priv Manuf 413 233,063 23,344 23,804 10 10.2
408 New York-Newark-Bridgeport, NY-NJ-CT-PA Total 8,146 8,434,183 2,068,527 2,187,275 24.5 25.9
Private 6,708 6,955,031 1,064,077 1,133,240 15.3 16.3
Public 1,438 1,479,152 1,004,450 1,054,035 67.9 71.3
Priv Const 394 415,617 97,788 104,566 23.5 25.2
Priv Manuf 671 672,762 95,429 100,263 14.2 14.9
428 Philadelphia-Camden-Vineland, PA-NJ-DE-MD Total 4,232 2,567,436 406,238 429,845 15.8 16.7
Private 3,656 2,222,667 223,550 236,216 10.1 10.6
Public 576 344,769 182,688 193,630 53 56.2
Priv Const 242 131,183 31,126 32,212 23.7 24.6
Priv Manuf 485 300,492 49,577 52,417 16.5 17.4
450 Raleigh-Durham-Cary, NC Total 711 701,391 19,449 26,690 2.8 3.8
Private 567 566,943 11,074 15,255 2 2.7
Public 144 134,448 8,375 11,435 6.2 8.5
Priv Const 78 78,313 0 0 0 0.0
Priv Manuf 75 72,189 1,560 2,731 2.2 3.8
482 Salt Lake City-Ogden-Clearfield, UT Total 1,558 638,580 33,052 39,886 5.2 6.2
Private 1,299 536,027 15,153 18,635 2.8 3.5
Public 259 102,553 17,899 21,251 17.5 20.7
Priv Const 109 46,875 3,699 4,227 7.9 9.0
Priv Manuf 184 74,041 2,003 2,003 2.7 2.7
488 San Jose-San Francisco-Oakland, CA Total 2,995 3,453,206 571,791 595,712 16.6 17.3
Private 2,565 2,967,769 295,828 312,646 10 10.5
Public 430 485,437 275,963 283,066 56.8 58.3
Priv Const 169 194,696 47,875 48,987 24.6 25.2
Priv Manuf 376 439,048 26,476 26,476 6 6.0
500 Seattle-Tacoma-Olympia, WA part Total 1,937 1,715,789 317,782 347,069 18.5 20.2
Private 1,551 1,383,545 155,141 165,762 11.2 12.0
Public 386 332,244 162,642 181,307 49 54.6
Priv Const 96 88,298 15,185 15,185 17.2 17.2
Priv Manuf 208 188,231 32,346 33,039 17.2 17.6
548 Washington-Baltimore-Northern Virginia, DC-MD-VA-WV Total 7,213 3,790,554 387,263 448,610 10.2 11.8
Private 5,448 2,875,972 169,262 191,225 5.9 6.6
Public 1,765 914,582 218,001 257,385 23.8 28.1
Priv Const 461 289,331 25,856 27,916 8.9 9.6
Priv Manuf 293 183,392 21,264 22,001 11.6 12.0
MSAs (sorted alphabetically):
FIPS Code
10420 Akron, OH Total 348 323,840 44,973 46,776 13.9 14.4
Private 298 276,200 23,700 25,503 8.6 9.2
Public 50 47,640 21,273 21,273 44.7 44.7
10500 Albany, GA Total 65 64,234 4,050 6,398 6.3 10.0
Private 48 48,003 3,197 5,545 6.7 11.6
Public 17 16,231 853 853 5.3 5.3
10580 Albany-Schenectady-Troy, NY Total 433 423,866 133,690 138,032 31.5 32.6
Private 319 314,531 56,622 57,578 18 18.3
Public 114 109,335 77,068 80,454 70.5 73.6
10740 Albuquerque, NM Total 739 349,006 32,698 39,225 9.4 11.2
Private 577 274,702 12,643 14,941 4.6 5.4
Public 162 74,304 20,055 24,283 27 32.7
10900 Allentown-Bethlehem-Easton, PA-NJ Total 516 480,361 62,496 66,590 13 13.9
Private 468 438,104 37,663 38,672 8.6 8.8
Public 48 42,257 24,832 27,917 58.8 66.1
11020 Altoona, PA Total 58 51,672 8,802 8,802 17 17.0
Private 46 41,066 3,781 3,781 9.2 9.2
Public 12 10,606 5,021 5,021 47.3 47.3
11300 Anderson, IN Total 76 74,957 14,418 14,418 19.2 19.2
Private 64 63,876 10,487 10,487 16.4 16.4
Public 12 11,081 3,931 3,931 35.5 35.5
11460 Ann Arbor, MI Total 214 202,551 44,288 45,323 21.9 22.4
Private 159 147,664 20,912 20,912 14.2 14.2
Public 55 54,887 23,375 24,410 42.6 44.5
11500 Anniston-Oxford, AL Total 89 83,185 11,373 16,771 13.7 20.2
Private 60 54,538 2,087 4,651 3.8 8.5
Public 29 28,648 9,287 12,120 32.4 42.3
11700 Asheville, NC Total 155 154,399 7,802 10,177 5.1 6.6
Private 129 128,758 2,961 2,961 2.3 2.3
Public 26 25,641 4,841 7,216 18.9 28.1
12020 Athens-Clark County, GA Total 64 63,611 0 0 0 0.0
Private 52 53,061 0 0 0 0.0
Public 12 10,550 0 0 0 0.0
12060 Atlanta-Sandy Springs-Marietta, GA Total 1,891 2,161,220 96,513 113,850 4.5 5.3
Private 1,630 1,870,540 64,206 73,527 3.4 3.9
Public 261 290,680 32,307 40,324 11.1 13.9
12100 Atlantic City, NJ Total 147 136,546 31,118 31,118 22.8 22.8
Private 128 119,927 20,653 20,653 17.2 17.2
Public 19 16,618 10,465 10,465 63 63.0
12260 Augusta-Richmond County, GA-SC Total 215 205,225 2,799 2,799 1.4 1.4
Private 189 179,607 1,010 1,010 0.6 0.6
Public 26 25,618 1,789 1,789 7 7.0
12420 Austin-Round Rock, TX Total 633 714,440 29,876 32,076 4.2 4.5
Private 501 563,830 6,962 7,867 1.2 1.4
Public 132 150,609 22,914 24,209 15.2 16.1
12540 Bakersfield, CA Total 272 306,130 74,872 78,913 24.5 25.8
Private 209 236,080 45,925 45,925 19.5 19.5
Public 63 70,050 28,946 32,988 41.3 47.1
12580 Baltimore-Towson, MD Total 1,853 1,164,715 172,591 195,882 14.8 16.8
Private 1,456 908,236 76,655 85,119 8.4 9.4
Public 397 256,479 95,936 110,764 37.4 43.2
70750 Bangor, ME Total 237 40,577 4,406 5,673 10.9 14.0
Private 199 34,394 2,170 2,314 6.3 6.7
Public 38 6,183 2,236 3,359 36.2 54.3
70900 Barnstable Town, MA Total 63 62,484 11,738 11,738 18.8 18.8
Private 55 54,769 6,960 6,960 12.7 12.7
Public 8 7,715 4,778 4,778 61.9 61.9
12940 Baton Rouge, LA Total 290 325,527 20,984 25,902 6.4 8.0
Private 229 260,197 14,065 17,012 5.4 6.5
Public 61 65,330 6,918 8,890 10.6 13.6
13140 Beaumont-Port Author, TX Total 126 134,763 12,192 13,062 9 9.7
Private 103 109,167 7,171 8,042 6.6 7.4
Public 23 25,596 5,021 5,021 19.6 19.6
13380 Bellingham, WA Total 133 91,613 17,759 17,759 19.4 19.4
Private 110 76,813 11,162 11,162 14.5 14.5
Public 23 14,801 6,597 6,597 44.6 44.6
13460 Bend, OR Total 108 72,398 5,615 5,615 7.8 7.8
Private 97 65,296 3,715 3,715 5.7 5.7
Public 11 7,102 1,900 1,900 26.8 26.8
13740 Billings, MT Total 190 42,491 5,509 6,094 13 14.3
Private 157 35,784 2,113 2,314 5.9 6.5
Public 33 6,707 3,396 3,780 50.6 56.4
13780 Binghamton, NY Total 90 88,281 17,494 17,494 19.8 19.8
Private 72 71,003 6,413 6,413 9 9.0
Public 18 17,278 11,081 11,081 64.1 64.1
13820 Birmingham-Hoover, AL Total 592 560,969 47,603 52,399 8.5 9.3
Private 501 478,106 28,086 29,887 5.9 6.3
Public 91 82,863 19,517 22,512 23.6 27.2
14020 Bloomington, IN Total 118 116,508 15,301 15,301 13.1 13.1
Private 78 77,903 6,571 6,571 8.4 8.4
Public 40 38,606 8,730 8,730 22.6 22.6
14060 Bloomington-Normal IL Total 118 115,569 11,780 11,780 10.2 10.2
Private 100 98,533 5,895 5,895 6 6.0
Public 18 17,036 5,885 5,885 34.5 34.5
14260 Boise City-Nampa, ID Total 804 234,757 10,237 11,029 4.4 4.7
Private 675 198,734 4,599 4,842 2.3 2.4
Public 129 36,023 5,638 6,186 15.7 17.2
71650 Boston-Cambridge-Quincy, MA-NH Total 3,125 2,092,449 264,563 284,388 12.6 13.6
Private 2,754 1,860,106 129,649 139,084 7 7.5
Public 371 232,343 134,914 145,304 58.1 62.5
14500 Boulder, CO Total 282 153,129 8,431 8,431 5.5 5.5
Private 223 121,384 2,599 2,599 2.1 2.1
Public 59 31,746 5,832 5,832 18.4 18.4
14540 Bowling Green, KY Total 34 24,993 2,372 3,046 9.5 12.2
Private 30 21,696 2,372 3,046 10.9 14.0
Public 4 3,297 0 0 0 0.0
14740 Bremerton-Silverdale, WA Total 105 95,105 19,112 27,664 20.1 29.1
Private 75 66,791 7,738 9,390 11.6 14.1
Public 30 28,313 11,374 18,275 40.2 64.5
71950 Bridgeport-Stamford-Norwalk, CT Total 901 353,410 53,396 58,808 15.1 16.6
Private 772 302,470 19,693 22,764 6.5 7.5
Public 129 50,940 33,703 36,044 66.2 70.8
15180 Brownsville-Harlingen, TX Total 94 102,925 3,390 4,340 3.3 4.2
Private 74 81,293 1,185 1,185 1.5 1.5
Public 20 21,632 2,205 3,154 10.2 14.6
15380 Buffalo-Niagara Falls, NY Total 498 490,159 132,242 138,193 27 28.2
Private 402 397,953 68,262 70,006 17.2 17.6
Public 96 92,207 63,980 68,186 69.4 73.9
72400 Burlington-South Burlington, VT Total 863 92,072 9,789 11,162 10.6 12.1
Private 727 77,911 4,862 4,862 6.2 6.2
Public 136 14,161 4,928 6,300 34.8 44.5
15940 Canton-Massillon, OH Total 196 179,642 34,406 34,406 19.2 19.2
Private 168 155,433 23,047 23,047 14.8 14.8
Public 28 24,209 11,358 11,358 46.9 46.9
15980 Cape Coral-Fort Myers, FL Total 221 227,605 11,139 25,476 4.9 11.2
Private 190 196,022 2,779 4,842 1.4 2.5
Public 31 31,583 8,360 20,634 26.5 65.3
16300 Cedar Rapids, IA Total 205 80,968 9,460 10,624 11.7 13.1
Private 187 73,815 6,658 7,443 9 10.1
Public 18 7,152 2,802 3,181 39.2 44.5
16580 Champaign-Urbana, IL Total 117 115,046 16,353 17,181 14.2 14.9
Private 82 82,169 5,979 5,979 7.3 7.3
Public 35 32,876 10,373 11,201 31.6 34.1
16620 Charleston, WV Total 369 132,224 25,405 28,043 19.2 21.2
Private 283 102,305 14,997 16,748 14.7 16.4
Public 86 29,919 10,408 11,296 34.8 37.8
16700 Charleston-North Charleston, SC Total 332 263,560 4,371 7,054 1.7 2.7
Private 267 211,484 1,325 3,372 0.6 1.6
Public 65 52,076 3,046 3,681 5.8 7.1
16740 Charlotte-Gastonia-Concord, NC-SC Total 750 769,434 15,925 24,437 2.1 3.2
Private 674 695,225 9,436 14,111 1.4 2.0
Public 76 74,209 6,489 10,326 8.7 13.9
16860 Chattanooga, TN-GA Total 226 233,498 14,301 17,780 6.1 7.6
Private 190 197,156 6,214 8,284 3.2 4.2
Public 36 36,342 8,087 9,497 22.3 26.1
16980 Chicago-Naperville-Joliet, IN-IN-WI Total 4,030 3,837,962 664,896 688,093 17.3 17.9
Private 3,524 3,354,041 412,838 425,157 12.3 12.7
Public 506 483,921 252,058 262,935 52.1 54.3