These are N Scale Clubs with an active web presence.
If you know of additions that should be here, please email me the link to nscalerailroadn@aol.com
The information here started with NTRAK
The other important N group is the N Scale Enthusiast
Formerly the N Scale Collector, this group hosts the annual National N Scale Convention with NTRAK co-ordinating the portable layouts (NTRAK, T-TRAK, oNeTrak, Free-moN, etc.)
UNITED STATES
Arizona
California
Antelope Valley N’scalers (Lancaster)
Bay Area NTRAK MRRC, Inc. (Crockett)
Belmont Shore Model Railroad Club(San Pedro)
East Valley Lines (Griffith Park)
Golden State Model Railroad Museum N Layout (Richmond)
The Orange County Engineers (Fullerton)
San Diego Society of N Scale (San Diego)
Colorado
Pikes Peak ‘N’Gineers (Colorado Springs)
Moffat Modelers Railroad Group (Denver)
Connecticut
Valley N-Trak(Oxford)
Florida
Suncoast Model Railroad Club (Largo)
Pensacola Model Railroad Club (Pensacola)
H. B. Plant Railroad Historical Society (Plant City)
Georgia
Athens Bend Track Railroad Club
Illinois
Elmhurst Model Railroad Club (Elmhurst)
GATEWAY N-TRAK (St. Louis, MO & IL)
Midwest N Pioneer Model Railroad Club (Westchester)
Mississippi Valley N Scalers (St. Louis Metro Area (MO & IL)
Indiana
Iowa
Kansas
Heartland N-Trak (Greater Kansas City)
Topeka N-Trak Model Railroad Club (Topeka & Kansas City)
Kentucky
KSONS – Kentuckiana Society of N Scalers (Louisville)
Maine
Massachusetts
Northeast N-Trak (eastern MA / southern NH)
Maryland
Michigan
Bluewater International (St. Clair County, Lambton County Ontario)
LaNTrak (Lansing / Ingham/ Livingston Counties)
Minnesota
Great River Valley System (Twin Cities)
Missouri
Heartland N-Trak (Greater Kansas City)
The Weekend ‘N’Gineers (Kansas City)
Mississippi Valley N Scalers (St. Louis)
The Nn3 Alliance (Chesterfield)
Montana
Nebrasaka
New Hampshire
Northeast N-Trak (eastern MA / southern NH)
New Jersey
Highpoint NTRAK (Northwest NJ)
Jersey Central NTRAK (Jamesburg/ Monmouth County)
New Jersey Southern NTRAK MRC (Collingswood)
Northern New Jersey N-Trak(Paterson)
New Mexico
New Mexico Rail RunNers (Albuquerque)
Nevada
Southern Nevada N-Trakers (Clark County)
New York
Albany NY N-Trak (East Greenbush)
FUNTRAK (Frankfort)
Genesee-N-Ontario model N-gineers, (Rochester)
Highpoint NTRAK (Orange County)
Niagara Orleans Model Railroad Engineers (Niagara)
Twin Tiers NTRAK Twin Tiers area (NY & PA)
Upstate Model Railroad Club (South Glens Falls)
North Carolina
Central Carolina N Scalers (Salisbury)
French Broad e’N’pire NTRAK Model Railroad Club (Hendersonville)
North Raleigh Model Railroad Club(Raleigh)
Ohio
Burning River “N” Society Cleveland area suburbs
Lake Erie N Scale Society (Cleveland)
Central Ohio N-Trak, (Columbus)
Oklahoma
Oklahoma N-Rail (Oklahoma City)
Northeast Oklahoma N-Scalers (Tulsa)
Oregon
Pacific Northwest Free-mo Group
Portland Area NTRAK (Portland)
Pennsylvania
Capital PenNScalers (Harrisburg)
Highpoint NTRAK (northeast PA)
Three Rivers Associates In NTRAK (Pittsburgh)
South Carolina
Tennessee
Texas
AustNtrak Model Railroad Club(Austin)
Northwest Crossing Model Railroad Club (Houston)
San Antonio N-TRAK Association (San Antonio)
Tex-N Modular Railroad Club (Plano)
Utah
Wasatch N-Scale (Salt Lake City)
Virginia
LyNchburg Area N-Scalers (Lynchburg)
Northern Virginia NTRAK (Springfield)
Peninsula Model Railroad Club(Newport News)
South Hampton Roads NTRAK Model Railroad Club (Norfolk)
Washington
Whatcom Skagit Model Railroad Club (Alger)
Bremerton Northern Model Railroad(Bremerton)
United NorthWest Model Railroad Club (Kirkland,)
NMRA/PNR/4th Division NTRAK (Seattle)
Inland Northwest Free-mo N (Spokane)
Mt. Rainier N Scale (Tacoma, WA
Cascade Pacific N Scalers (Seattle-Tacoma))
Wisconsin
Capitol City “N”Gineers (Madison)
KettleMoraine Ballast Scorchers (West Bend)
Milwaukee Area NTRAK (Milwaukee)
CANADA
British Columbia
Manitoba
Ontario
Bluewater International (Lambton County)
Erin Mills Model Railroad Association (Mississauga)
Windsor Model Railroad Club (Windsor)
Quebec
Montreal N-Rail / N-Rail Montréal (Montreal)
GERMANY
NTRAK German Division (Heidelberg)
ITALY
Amici Modellisti e Collezionisti San Martino (Bollate)
THE NETHERLANDS
SWEDEN
SWITZERLAND
ENGLAND
Mendip N-Trak (Frome, Somerset)