North America: United States Regions

STATE CITY/COUNTY/PARISH US SPE REGION
Alabama All Eastern North America Region
Alaska All Western North America
Arizona All Southwestern North America
Arkansas All Mid-Continent North America
California All Western North America
Colorado Baca and Prowers counties Mid-Continent North America
Colorado All counties not listed in the other regions for this state Rocky Mountain North America
Colorado Archuleta, Dolores, La Plata, and Montezuma counties Southwestern North America
Connecticut All Eastern North America Region
Delaware All Eastern North America Region
District of Columbia All Eastern North America Region
Florida All Eastern North America Region
Georgia All Eastern North America Region
Hawaii All Western North America
Idaho All Rocky Mountain North America
Illinois All Mid-Continent North America
Indiana All counties not listed in the other regions for this state Eastern North America Region
Indiana Benton, Boone, Carroll, Cass, Clay, Clinton, Daviess,Elkhart, Fountain, Fulton, Gibson, Grant, Hamilton, Howard, Huntington, Jasper, Knox, Kosciusko, LaGrange, Lake, LaPorte,Marshall, Miami, Montgomery, Newton, Noble, Parke, Pike, Porter, Posey, Pulaski, St. Joseph, Starke, Sullivan, Tippecanoe, Vermillion, Tipton, Vanderburgh, Vigo, Wabash, Warren, Warrick, White, and Whitley counties Mid-Continent North America
Iowa All Mid-Continent North America
Kansas All Mid-Continent North America
Kentucky All counties not listed in the other regions for this state Eastern North America Region
  Adair, Allen, Anderson, Ballard, Barren, Brackinridge, Bullitt, Butler, Calloway, Caldwell, Carlisle, Carroll, Christian, Casey, Clinton, Crittendon, Cumberland, Daviess, Edmonson, Franklin, Fulton, Graves, Grayson, Green, Hancock, Hardin, Hart,Henderson, Henry, Hickman, Hopkins, Jefferson, Larue, Lyon, Livingston, Logan, Marion, Marshall, McCracken, McLean,
Meade, Metcalfe, Monroe, Muhlenberg, Nelson, Ohio, Oldham, Russell, Shelby, Simpson, Spencer, Taylor, Todd, Trigg, Trimble,Union, Warren, Washington, and Webster counties
Mid-Continent North America
Louisiana All Parishes not listed in the other regions for this state Eastern North America Region
Louisiana Avoyelles Bienville, Bossier, Caddo, Franklin, Grant, Jackson, LaSalle, Rapides, Red River, Richland, and Sabine Parishes Mid-Continent North America
Maine All Eastern North America Region
Maryland All Eastern North America Region
Massachusetts All Eastern North America Region
Michigan All Eastern North America Region
Minnesota All Mid-Continent North America
Mississippi All Eastern North America Region
Missouri All Mid-Continent North America
Montana All Rocky Mountain North America
Nebraska All Rocky Mountain North America
Nevada All Western North America
New Hampshire All Eastern North America Region
New Jersey All Eastern North America Region
New Mexico All Southwestern North America
New York All Eastern North America Region
North Carolina All Eastern North America Region
North Dakota All Rocky Mountain North America
Ohio All Eastern North America Region
Oklahoma All counties not listed in the other regions for this state Mid-Continent North America
Oklahoma Beaver, Cimarron, Harper, and Texas counties Southwestern North America
Oregon All Western North America
Pennsylvania All Eastern North America Region
Rhode Island All Eastern North America Region
South Carolina All Eastern North America Region
South Dakota All Rocky Mountain North America
Tennessee All counties not listed in the other regions for this state Eastern North America Region
  Benton, Carroll, Cheatham, Chester, Crockett, Davidson, Decatur, Dickson, Dyer, Fayette, Gibson, Giles, Hardeman, Hardin, Haywood, Henderson, Henry, Hickman, Houston, Humphreys, Lake,Lauderdale, Lawrence, Lewis, Madison, Marshall, Maury, McNairy, Montgomery, Obion, Perry, Robertson, Shelby, Stewart, Tipton, Wayne, Weakley, and Williamson counties Mid-Continent North America
Texas Corpus Christi, Houston Gulf Coast North America
Texas Dallas, Fort Worth, Tyler Mid-Continent North America
Texas Amarillo, Austin, Midland, Odessa, San Antonio, Wichita Falls Southwestern North America
Utah All Counties except San Juan Rocky Mountain North America
Utah San Juan County Southwestern North America
Vermont All Eastern North America Region
Virginia All Eastern North America Region
Washington All Western North America
West Virginia All Eastern North America Region
Wisconsin All Mid-Continent North America
Wyoming All Rocky Mountain North America