Iron Workers Local Union No. 21 Jurisdiction

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Counties covered by Local 21: Adams, Arthur, Boone, Buffalo, Burt, Butler, Cass, Chase, Clay, Colfax, Custer, Dawson, Dodge, Douglas, Dundy, Fillmore, Franklin, Frontier, Furnas, Gage, Gosper, Greeley, Hall, Hamilton, Harlan, Hayes, Hitchcock, Howard, Jefferson, Johnson, Kearney, Keith, Lancaster, Lincoln, Logan, McPherson, Merrick, Nance, Nemaha, Nuckolls, Otoe, Pawnee, Perkins, Phelps, Platte, Polk, Red Willow, Richardson, Saline, Sarpy, Saunders, Seward, Sherman, Thayer, Valley, Washington, Webster and York counties in Nebraska.  Audubon, Cass, Fremont, Harrison, Mills, Montgomery, Pottawattamie, Page and Shelby counties in Iowa.

Counties covered by Local 21A: Antelope, Blaine, Boyd, Brown, Cedar, Cherry, Cuming, Dakota, Dixon, Garfield, Grant, Hooker, Holt, Keya Paha, Knox, Loup, Madison, Pierce, Rock, Stanton, Thomas, Thurston, Wayne and Wheeler counties in Nebraska.  Buena Vista, Cherokee, Clay, Crawford, Dickinson, Emmet, Ida, Lyon, Monona, O'Brien, Osceola, Palo Alto, Plymouth, Pocahontas, Sac, Sioux and Woodbury in counties Iowa.  Aurora, Beadle, Bennett, Bon Homme, Brookings, Brown, Brule, Buffalo, Campbell, Charles Mix, Clark, Clay, Codington, Corson, Davison, Day, Deuel, Dewey, Douglas, Edmunds, Faulk, Grant, Gregory, Haakon, Hamlin, Hand, Hanson, Hughes, Hutchinson, Hyde, Jackson, Jerauld, Jones, Kingsbury, Lake, Lincoln,  Lyman, Marshall. McCook, McPherson, Mellette, Miner, Minnehaha, Moody, Potter, Roberts, Sanborn, Spink, Stanley, Sully, Todd, Tripp, Turner, Union, Walworth, Yankton and Ziebach counties in South Dakota.