National Model Railroad Association

United States
| AL | AK | AZ | CA | CO | FL | IA | IN | KS | KY | LA | MI | MN | MO | NC | NJ | NM | NY | OH | OR | TX | UT | VA | WA |

Canada
| BC | PQ |

Alabama:

• Magic City Railroad Club: Bessemer, AL.
• The Wrecking Crew: Birmingham, AL.

Alaska:

• Tanana Valley Model Railroad Club, Inc.: Fairbanks, AK

Arizona:

• Thunderbird Model Railroad Club: Phoenix, AZ.

California:

• Hemet San Jacinto Railroad Club: Hemet, CA.
• Lake County Model Railroad Club: Lakeport, CA
• Western Prototype Modelers: Irvine, CA.
• West Bay Model Railroad Association: Menlo Park, CA.
• Slim Gauge Guild: Pasadena, CA
• Northern California Free-Mo: San Francisco, CA
• Walnut Creek Model Railroad Society: Walnut Creek, CA

Colorado:

• Moffat Modelers: Denver, CO.
• Pikes Peak & Southern Railroad: Limon, CO.
• Pikemaster Railroad Club of Colorado Springs:Colorado Springs, CO

Florida:

• Martin County Model Railroaders: Palm Cty, FL.
• Scale Rails of Southwest Florida, Inc.: North Fort Meyers, FL.

Indiana:

Maumee Valley Railroad Club: Leo, IN.

Iowa:

• Warren County Modular Railroaders: Indianola, IA

Kansas:

• Emporia Model Railroad Club: Emporia, KS.
• Lawrence Model Railroad Club: Lawrence, KS.

Kentucky:

• Pennyrile Model Railroaders: Hopkinsville, KY.
• K&I Model Railroad Club: Louisville, KY.

Louisiana:

• Crescent City Model Railroad Club, Inc.: Metairie, LA.
• Greater Baton Rouge Model Railroad Club: Baton Rouge, LA.
• MidSouth Model Railroad Club: Baton Rouge, LA.

Michigan:

• Michigan Small Scale Live Steamers: Lake Orion, MI.
• Stoney Creek Model Railroad Club: Rochester, MI.
• Society of N Scalers: Royal Oak, MI.

Minnesota:

• Luce Line Railroad Club: Hutchinson, MN.
• Lakes Model Railroad Association: Glenwood, MN.
• Monticello Society of Model Railroaders: Monticello, MN.

Missouri:

• Friday Boomers: St. Louis, MO.

New Jersey:

• Garden State Central Model Railroad Club: Asbury Park, NJ.

New Mexico:

• Central New Mexico Operators: Albuquerque, NM.
• Southwest Free-Mo: Rio Rancho, NM.

New York:

• Binghamton Society of Model Engineers: Binghamton, NY.

North Carolina:

• Cape Fear Railroaders: Fayetteville, NC.

Ohio:

• Cincinnati Model Railway Club: Cincinnati, OH.
• Erie Mad River Railroad Club: Sandusky, OH.

Oregon:

• Portland Area N Trak: Portland, OR

Texas:

• East Texas Model Railroad Club: Commerce, TX

Texas Western Model Railroad Club: Fort Worth, TX

San Jacinto Model Rails: Houston, TX

Utah:

• Ophir, Tintic & Western Model Railroad Club: Eagle Mountain, UT.

Virginia:

• Great Lakes & Southeastern: Chesapeake, VA.

Washington:

• Tri-City Model Railroaders: Kennewick, WA.
• Inland Northwest Society of HO Modular Engineers: Spokane Valley, WA
• River City Modelers: Spokane Valley, WA

British Columbia:

• Chilliwack Model Railway Club: Chilliwack, British Columbia.

Quebec:

• Free-Modu-Rail de la Capitale: Quebec City, Quebec.