Size Categories of Local Sections

ACS Local Sections

Membership Counts as of 12/31/13

Very Large (3,200+ members)
 LS_ID  Local Section # of members
L601 California 3370
L315 Chemical Society of Washington 3894
L501 Chicago 4391
L108 New York 3969
L303 North Jersey 4661
L109 Northeastern 6459
L304 Philadelphia 5021
Large Local Sections (1,600 - 3,199 members)
 LS_ID  Local Section # of members
L558 Colorado 2390
L102 Connecticut Valley 1810
L452 Dallas-Fort Worth 1683
L300 Delaware 1626
L414 Georgia 2023
L436 Greater Houston 2989
L233 Indiana 1692
L301 Maryland 2038
L513 Minnesota 2276
L426 North Carolina 2273
L215 Pittsburgh 1911
L621 Puget Sound 1998
L626 San Diego 2642
L628 Santa Clara Valley 2820
L633 Southern California 2680
L523 St. Louis 1602
Medium Large Local Sections (800 -1,599 members)
 LS_ID  Local Section # of members
L446 Central Texas 910
L202 Cincinnati 1455
L203 Cleveland 1070
L204 Columbus 1199
L207 Detroit 1374
L104 Eastern New York 967
L120 Lehigh Valley 917
L512 Milwaukee 819
L236 Nashville 871
L107 New Haven 926
L616 Orange County 1351
L445 Puerto Rico 1557
L623 Sacramento 886
L409 South Florida 1185
L246 Virginia 1377
L442 Western Carolinas 849
L536 Wisconsin 874
Medium Local Sections (400 - 799 members)
 LS_ID  Local Section # of members
L200 Akron 797
L400 Alabama 531
L403 Baton Rouge 536
L644 California Los Padres 661
L405 Carolina-Piedmont 756
L602 Central Arizona 740
L541 Central Arkansas 417
L101 Central Massachusetts 612
L557 Central New Mexico 790
L112 Central New York 483
L407 Central North Carolina 691
L122 Central Pennsylvania 588
L206 Dayton 460
L556 East Central Illinois 579
L218 East Tennessee 700
L413 Florida 794
L220 Huron Valley 733
L505 Iowa 426
L230 Kalamazoo 454
L508 Kansas City 663
L419 Louisiana Section 639
L231 Michigan State University 404
L211 Midland 701
L422 Mississippi 616
L545 Oklahoma 518
L617 Oregon 470
L411 Orlando 554
L620 Portland 760
L305 Princeton 671
L239 Purdue 607
L111 Rhode Island 503
L622 Richland 552
L118 Rochester 788
L624 Salt Lake 777
L447 San Antonio 487
L627 San Gorgonio 779
L435 South Carolina 725
L308 Southeastern Pennsylvania 626
L632 Southern Arizona 561
L240 St. Joseph Valley 458
L406 Tampa Bay 725
L450 Texas A&M 461
L307 Trenton 743
L205 Virginia Blue Ridge 552
L113 Western Connecticut 710
L119 Western New York 767
Medium Small Local Sections (200 - 399 members)
 LS_ID  Local Section # of members
L500 Ames 383
L402 Auburn 314
L404 Brazosport 270
L641 Central Utah 209
L217 Chattanooga 252
L410 Coastal Georgia 269
L103 Cornell 285
L116 Corning 224
L451 East Texas 213
L412 Eastern North Carolina 289
L114 Green Mountain 289
L317 Hampton Roads 329
L608 Hawaii 255
L518 Illinois Heartland 246
L502 Illinois-Iowa 202
L417 Jacksonville 253
L506 Joliet 314
L228 Lexington 358
L229 Louisville 393
L105 Maine 380
L235 Memphis 383
L106 Mid-Hudson 392
L612 Montana 299
L514 Nebraska 280
L425 North Alabama 246
L427 Northeast Georgia 382
L237 Northeast Tennessee 340
L515 Northeast Wisconsin 286
L225 Northern West Virginia 234
L548 Ozark 202
L213 Penn-Ohio Border 216
L521 Red River Valley 242
L559 Rio Grande Valley 237
L434 Savannah River 284
L524 Sioux Valley 244
L306 South Jersey 312
L448 South Texas 203
L241 Southern Indiana 293
L600 Southern Nevada 260
L121 Susquehanna Valley 294
L219 Toledo 371
L546 Tulsa 226
L531 University of Missouri 260
L530 Wakarusa Valley 300
L637 Washington-Idaho Border 213
L232 Western Michigan 386
L535 Wichita 213
Small Local Section (50-199 members)
 LS_ID  Local Section # of members
L643 Alaska 125
L100 Binghamton 185
L227 Central Ohio Valley 144
L539 Central Wisconsin 154
L540 Decatur-Springfield 196
L208 Erie 144
L453 Heart O' Texas 183
L609 Idaho 145
L209 Indiana-Kentucky Border 164
L610 Inland Northwest 127
L224 Kanawha Valley 154
L509 Kansas State University 117
L234 Kentucky Lake 192
L537 LaCrosse-Winona 130
L510 Lake Superior 134
L520 Mark Twain 103
L454 Middle Georgia 179
L423 Mobile 146
L611 Mojave Desert 190
L526 Mo-Kan-Ok, The Tri-State 111
L238 Northeastern Indiana 125
L212 Northeastern Ohio 193
L110 Northern New York 148
L544 Northern Oklahoma 181
L210 Northwest Central Ohio 134
L401 Northwest Louisiana 127
L314 Ocean County 165
L420 Ole Miss 174
L517 Omaha 199
L430 Ouachita Valley 97
L549 Panhandle Plains 66
L244 Penn-York 87
L431 Pensacola 184
L550 Permian Basin 123
L547 Rock River 189
L433 Sabine-Neches 96
L607 San Joaquin Valley 184
L629 Sierra Nevada 185
L645 Snake River 139
L525 South Central Missouri 126
L551 South Plains 159
L527 Southern Illinois 140
L416 Southwest Georgia 155
L437 Southwest Louisiana 194
L538 University of Arkansas 150
L221 Upper Ohio Valley 147
L532 Upper Peninsula 115
L243 Wabash Valley 101
L316 Western Maryland 117
L553 Wichita Falls-Duncan 99
L444 Wilson Dam 111
L223 Wooster 146
L639 Wyoming 190