Regional Chapter Map
Chapters
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Florida
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Great Plans Tornado Alley
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Hudson-Mohawk
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Michigan
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Mid-Atlantic
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Minnesota
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New England
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New Mexico
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Northern California
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Ohio
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Pacific Northwest
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Prairie
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Rocky Mountain
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Southern California
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Tennessee Valley
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Texas
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Western Pennsylvania
| Chapter | Geographical Area | Usual Meeting Places |
|---|---|---|
| Florida | FL,LA, MS | Clearwater, St. Petersburg, Tampa |
| Great Plans Tornado Alley | AR, KS, NE, OK | |
| Hudson-Mohawk | NY (zips 10500-12800) | Niskayuna, Troy |
| Michigan | MI | Detroit |
| Mid-Atlantic | DC, NC, MD, VA, WV | Newport News, Washington DC, Raleigh |
| Minnesota | MN, ND, SD, WI (zips 540, or 544-548) | Minneapolis, St. Paul |
| New England | MA, ME, VT, NH, RI, CT, NY (1000-10499, 11000-11999) | Northwest Suburban Boston |
| New Mexico | NM, AZ and parts of TX in Mountain Time | Albuquerque, Santa Fe |
| Northern California | CA (zip 93700-96099), NV | San Francisco Bay Area |
| Ohio | OH | Cleveland |
| Pacific Northwest | WA, OR, ID, B.C | Portland, Albany, Seattle, Richland |
| Prairie | IA, IL, IN, MO, WI, (zip 530-539, 541-543, and 549) | Chicago |
| Rocky Mountain | MT, WY, UT, CO | Denver, Boulder |
| Southern California | CA (zips 90000-93599) | Los Angeles |
| Tennessee Valley | TN, KY, AL, GA, SC | Oak Ridge, Atlanta, others |
| Texas | TX | Dallas-Fort Worth, Austin, Houston |
| Western Pennsylvania | Western PA (zips 15000-16899) | Pittsburgh, State College |
States with No Chapters: Alaska, Hawaii, NY (zips 14999), Canada (except B.C. and see above)