States & territories ranked by routing-number count

All 54 US states and territories side by side, ranked by how many records in the Federal Reserve FedACH Participant directory carry that two-letter state code. States and territories are ranked by position once sorted by routing-number count, highest first; ties are broken by state slug A to Z. The counts come from the same state field that drives the existing state pages, and together they account for 18,176 routing numbers.

54 states and territories, ranked

Rank	State / Territory	Routing Numbers	Share of all records
1	Texas	1,328	7.31%
2	Illinois	1,133	6.23%
3	California	942	5.18%
4	Pennsylvania	851	4.68%
5	New York	801	4.41%
6	Ohio	783	4.31%
7	Minnesota	768	4.23%
8	Virginia	594	3.27%
9	Missouri	581	3.20%
10	Georgia	514	2.83%
11	Iowa	504	2.77%
12	Michigan	503	2.77%
13	Florida	490	2.70%
14	Kansas	465	2.56%
15	Wisconsin	460	2.53%
16	Tennessee	434	2.39%
17	Louisiana	416	2.29%
18	Massachusetts	415	2.28%
19	Oklahoma	403	2.22%
20	Alabama	372	2.05%
21	New Jersey	367	2.02%
22	Indiana	362	1.99%
23	Arkansas	338	1.86%
24	Mississippi	325	1.79%
25	Kentucky	317	1.74%
26	Nebraska	316	1.74%
27	North Carolina	292	1.61%
28	Colorado	278	1.53%
29	Washington	269	1.48%
30	Connecticut	234	1.29%
31	South Carolina	186	1.02%
32	Maryland	182	1.00%
33	South Dakota	177	0.97%
34	West Virginia	173	0.95%
35	Maine	157	0.86%
36	Montana	155	0.85%
37	North Dakota	153	0.84%
38	Puerto Rico	139	0.76%
39	Utah	138	0.76%
40	Oregon	132	0.73%
41	New Mexico	92	0.51%
42	Arizona	89	0.49%
43	Hawaii	85	0.47%
44	Wyoming	69	0.38%
45	Rhode Island	64	0.35%
46	Delaware	63	0.35%
47	Idaho	58	0.32%
48	District of Columbia	44	0.24%
49	New Hampshire	43	0.24%
50	Vermont	42	0.23%
51	Nevada	41	0.23%
52	Alaska	28	0.15%
53	Guam	6	0.03%
54	US Virgin Islands	5	0.03%