Top Trains & Public Transportation subreddits

Largest Trains & Public Transportation subreddits

Largest Trains & Public Transportation subreddits

#	Subreddit	Members	12-mo growth	Commenters / mo
1	r/trains	659,555	+7.4%	6,766
2	r/indianrailways	416,311	+18%	9,719
3	r/nycrail	179,227	+16%	3,637
4	r/transit	139,869	+23%	4,271
5	r/LondonUnderground	127,280	+21%	2,185
6	r/Amtrak	102,094	+32%	3,620
7	r/TrainPorn	101,713	+16%	441
8	r/uktrains	77,788	–	4,308
9	r/drehscheibe	71,816	+27%	3,651
10	r/TTC	68,540	+29%	2,281
11	R r/rustyrails	66,852	+29%	351
12	r/MelbourneTrains	47,710	+31%	2,233
13	r/cta	46,897	+42%	1,464
14	r/TransitDiagrams	46,803	+28%	739
15	r/mbta	43,471	+43%	1,845
16	r/LAMetro	35,654	+53%	2,404
17	r/SMRTRabak	33,942	+75%	3,555
18	r/NJTransit	32,636	+46%	1,332
19	r/highspeedrail	30,822	+38%	701
20	W r/WaitingForATrain	29,508	+20%	216
21	r/WMATA	26,693	–	2,122
22	r/Bart	26,378	+31%	552
23	r/Trams	24,135	+28%	253
24	r/SydneyTrains	23,951	–	1,700
25	r/gotransit	20,932	–	834

Fastest growing Trains & Public Transportation subreddits

Member growth over 12 months, among subreddits that had at least 18,251 members a year ago.

Fastest growing Trains & Public Transportation subreddits

#	Subreddit	12-mo growth	Members gained	Members	Commenters / mo
1	r/SMRTRabak	+75%	+14,537	33,942	3,555
2	r/LAMetro	+53%	+12,409	35,654	2,404
3	r/NJTransit	+46%	+10,242	32,636	1,332
4	r/mbta	+43%	+13,145	43,471	1,845
5	r/cta	+42%	+13,855	46,897	1,464
6	r/highspeedrail	+38%	+8,513	30,822	701
7	r/Amtrak	+32%	+24,831	102,094	3,620
8	r/MelbourneTrains	+31%	+11,393	47,710	2,233
9	r/Bart	+31%	+6,182	26,378	552
10	R r/rustyrails	+29%	+15,198	66,852	351
11	r/TTC	+29%	+15,475	68,540	2,281
12	r/Trams	+28%	+5,347	24,135	253
13	r/TransitDiagrams	+28%	+10,217	46,803	739
14	r/drehscheibe	+27%	+15,418	71,816	3,651
15	r/transit	+23%	+26,385	139,869	4,271
16	r/LondonUnderground	+21%	+22,211	127,280	2,185
17	W r/WaitingForATrain	+20%	+4,901	29,508	216
18	r/indianrailways	+18%	+64,201	416,311	9,719
19	r/TrainPorn	+16%	+13,902	101,713	441
20	r/nycrail	+16%	+24,405	179,227	3,637
21	r/trains	+7.4%	+45,504	659,555	6,766

Most members gained

Trains & Public Transportation subreddits that gained the most members

#	Subreddit	Members gained	12-mo growth	Members	Commenters / mo
1	r/indianrailways	+64,201	+18%	416,311	9,719
2	r/trains	+45,504	+7.4%	659,555	6,766
3	r/transit	+26,385	+23%	139,869	4,271
4	r/Amtrak	+24,831	+32%	102,094	3,620
5	r/nycrail	+24,405	+16%	179,227	3,637
6	r/LondonUnderground	+22,211	+21%	127,280	2,185
7	r/TTC	+15,475	+29%	68,540	2,281
8	r/drehscheibe	+15,418	+27%	71,816	3,651
9	R r/rustyrails	+15,198	+29%	66,852	351
10	r/SMRTRabak	+14,537	+75%	33,942	3,555
11	r/TrainPorn	+13,902	+16%	101,713	441
12	r/cta	+13,855	+42%	46,897	1,464
13	r/mbta	+13,145	+43%	43,471	1,845
14	r/LAMetro	+12,409	+53%	35,654	2,404
15	r/MelbourneTrains	+11,393	+31%	47,710	2,233
16	r/NJTransit	+10,242	+46%	32,636	1,332
17	r/TransitDiagrams	+10,217	+28%	46,803	739
18	r/highspeedrail	+8,513	+38%	30,822	701
19	r/Bart	+6,182	+31%	26,378	552
20	r/Trams	+5,347	+28%	24,135	253
21	W r/WaitingForATrain	+4,901	+20%	29,508	216

Most active Trains & Public Transportation subreddits

People who comment in a month, the average of the three months ending September 2026.

Most active Trains & Public Transportation subreddits

#	Subreddit	Commenters / mo	Posts / mo	Members
1	r/indianrailways	9,719	1,649	416,311
2	r/trains	6,766	1,481	659,555
3	r/uktrains	4,308	701	77,788
4	r/transit	4,271	660	139,869
5	r/drehscheibe	3,651	891	71,816
6	r/nycrail	3,637	737	179,227
7	r/Amtrak	3,620	743	102,094
8	r/SMRTRabak	3,555	411	33,942
9	r/LAMetro	2,404	469	35,654
10	r/TTC	2,281	230	68,540
11	r/MelbourneTrains	2,233	470	47,710
12	r/LondonUnderground	2,185	235	127,280
13	r/WMATA	2,122	357	26,693
14	r/mbta	1,845	399	43,471
15	r/LIRR	1,809	194	14,847
16	r/SydneyTrains	1,700	203	23,951
17	r/cta	1,464	183	46,897
18	r/NJTransit	1,332	316	32,636
19	r/soundtransit	1,013	118	11,111
20	r/ViaRail	945	136	20,177
21	r/Translink	898	126	12,428
22	r/gotransit	834	190	20,932
23	r/TransportForLondon	784	146	11,808
24	r/TransitDiagrams	739	249	46,803
25	r/highspeedrail	701	92	30,822

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How these lists are made

• Members are the member counts measured in October 2026.
• Activity (commenters and posts per month) is the average of the three months ending September 2026. Posts by known bots are not counted.
• 12-month growth compares members now with members a year earlier. A subreddit is ranked by growth only if it already had at least 18,251 members a year ago (the median for subreddits with a known growth), so brand-new communities don't top the list from a base of zero. Subreddits with more monthly active users than 0.808 per member, a sign of inflated activity, are left out of the growth and activity lists.
• NSFW communities are excluded: those Reddit marks as 18+, those where most posts are NSFW, and the Adult Content topic.
• Topics follow Reddit's own community categories.
• The lists are rebuilt every month. Each list shows the top 25 (100 for the largest subreddits overall). Download all lists as CSV (free to reuse under CC BY 4.0, with a link to this page).