List of county routes in St. Lawrence County, New York

	CR 3 in the hamlet of Rossie
Highway names
Interstates	Interstate X (I-X)
US Highways	U.S. Route X (US X)
State	New York State Route X (NY X)
County:	County Route X (CR X)
System links
	New York Highways; Interstate; US; State; Reference; Parkways;

County routes in St. Lawrence County, New York, are signed with the Manual on Uniform Traffic Control Devices-standard yellow-on-blue pentagon route marker.

Routes 1–30

Route	Length (mi)^[1]	Length (km)	From	Via	To	OSM relation	Notes
CR 1	1.65	2.66	NY 37	Webster Road in Hammond	CR 6	3128234
CR 2	2.68	4.31	NY 37	Brier Hill–Longs Corners Road in Morristown	NY 58	3128238
CR 3 (1)	11.19	18.01	CR 10 in Rossie	Oxbow–Rossie–Hammond Road	NY 37 in Hammond	3128242	Part north of CR 8 was formerly NY 185
CR 3 (2)	2.40	3.86	CR 6	Old Oak Creek Road in Hammond	Chippewa Creek Road	5583338
CR 4	5.80	9.33	CR 6	Eel Weir Road in Oswegatchie	NY 68	3690333
CR 5	2.34	3.77	CR 6	Black Lake–Brier Hill Road in Morristown	NY 37	3691728
CR 6	28.66	46.12	Jefferson County line in Hammond (becomes CR 111)	Hammond–Ogdensburg Road	NY 37 in Oswegatchie	3128270	Discontinuous at Hammond village limits
CR 7	4.33	6.97	CR 10	Macomb–Pope Mills Road in Macomb	NY 184	3128271
CR 8	4.30	6.92	CR 3 in Rossie	Brasie Corners–Rossie Road	NY 58 in Macomb	3128272
CR 9	4.40	7.08	Jefferson County line in Rossie (becomes CR 26)	Spragueville Road	US 11 in Gouverneur	3687589
CR 10 (1)	24.12	38.82	Jefferson County line in Rossie (becomes CR 25)	Rossie–Heuvelton Road	NY 184 in De Peyster	3128265
CR 10 (2)	9.34	15.03	Heuvelton village line in Oswegatchie	Rossie–Heuvelton Road	CR 27 in Lisbon	3128266
CR 11	14.90	23.98	Gouverneur village line in Gouverneur	Gouverneur–De Peyster Road	CR 10 in De Peyster	3128267
CR 12	6.96	11.20	Jefferson County line in Rossie (becomes CR 25)	Oxbow–Gouverneur Road	Gouverneur village line in Gouverneur	3128268
CR 13	2.20	3.54	Small Flats Road	Baker Corners–Barnum School Road in Hermon	CR 19	3120275
CR 14 (1)	7.15	11.51	NY 812 in De Kalb	Rensselaer Falls–Madrid Road	NY 68 in Canton	3132082	Discontinuous at Rensselaer Falls village limits; designated NY 186 from c. 1931^[2]^[3] to 1982^[4]
CR 14 (2)	10.44	16.80	NY 68 in Canton	Rensselaer Falls–Madrid Road	NY 345 in Madrid	3128237	Part north of south junction with CR 27 is a former routing of NY 345
CR 14 (3)	11.62	18.70	NY 345 in Madrid	Rensselaer Falls–Madrid Road	NY 37 in Louisville	3132083
CR 15	9.63	15.50	US 11 in Canton	Route 11–Rensselaer Falls and Rensselaer Falls–Heuvelton roads	Heuvelton village line in Oswegatchie	3132084	Discontinuous at Rensselaer Falls village limits
CR 16	2.96	4.76	NY 812 in De Kalb	McAdoo Road	CR 15 in Canton	3132085
CR 17 (1)	4.66	7.50	CR 11 in De Peyster	Degrasse–De Peyster Road	NY 812 in De Kalb	3132086
CR 17 (2)	12.11	19.49	NY 812 in De Kalb	Degrasse–De Peyster Road	CR 24	3132087	Discontinuous at Hermon village limits; formerly part of NY 87
CR 17 (3)	5.69	9.16	CR 24	Degrasse–De Peyster Road	CR 27	3132088
CR 18	3.73	6.00	CR 20	De Kalb–Richville Road in De Kalb	CR 19	3132089
CR 19	12.80	20.60	Edwards village line in Edwards	Edwards–De Kalb Road	US 11 in De Kalb	3120277
CR 20	8.65	13.92	Richville village line in De Kalb	Richville–Hermon Road	Hermon village line in Hermon	3132093
CR 21	15.30	24.62	CR 24 in Edwards	Edwards–Hermon–Canton Road	CR 25 in Canton	3132094	Discontinuous at Hermon village limits
CR 22 (1)	6.94	11.17	Jefferson County line in Rossie	Spragueville–Emeryville Road	NY 58 / NY 812 in Fowler	3132095	Locally known as Farm-to-Market Rd.
CR 22 (2)	1.68	2.70	Little York Road	Spragueville–Emeryville Road in Fowler	Oswegatchie River bridge	3132096
CR 23	5.66	9.11	NY 3 in Pitcairn	East Pitcairn–South Edwards Road	NY 58 in Edwards	3132097
CR 23A	0.73	1.17	NY 3	East Pitcairn–South Edwards Road in Pitcairn	CR 23	3132098
CR 24 (1)	7.86	12.65	Jefferson and Lewis county lines in Fowler	Russell–Pierrepont Road	NY 58 in Edwards	3132099
CR 24 (2)	23.51	37.84	NY 58 in Edwards	Russell–Pierrepont Road	NY 56 in Pierrepont	3120278	Discontinuous at Edwards village limits; part south of north junction with CR 17 was formerly part of NY 87
CR 25	10.18	16.38	CR 24 in Russell	Russell–Martin Corners and Pike roads	NY 68 in Canton	3132100
CR 26	1.28	2.06	NY 812	Pitcairn–Fowler Road in Pitcairn	NY 3	3132101
CR 27 (1)	28.22	45.42	NY 3	Fine–Canton–Lisbon Road	Canton village line	3120279
CR 27 (2)	5.22	8.40	Canton village line	Fine–Canton–Lisbon Road	CR 14	3128240	Former routing of NY 345
CR 27 (3)	9.49	15.27	CR 14	Fine–Canton–Lisbon Road	CR 28	3132102
CR 27A	1.86	2.99	NY 58	Fine–Canton–Lisbon Road in Fine	CR 27	5583337
CR 28	15.05	24.22	NY 37 in Lisbon	Ogdensburg–Waddington Road	NY 37 in Waddington	3128241	Formerly NY 37A
CR 28A	3.11	5.01	NY 68 in Oswegatchie	Arnold Wagner Road	CR 28 in Lisbon
CR 29	4.23	6.81	CR 27 in Canton	Waterman Hill–Pierrepont Road	CR 24 in Pierrepont	3132103
CR 30	5.93	9.54	CR 27 in Lisbon	Lisbon–Madrid Road	CR 31 in Madrid	3128243

Routes 31 and up

Route	Length (mi)^[1]	Length (km)	From	Via	To	OSM Relations	Notes
CR 31	8.97	14.44	CR 28 in Lisbon	Madrid–Chipman Road	CR 14 in Madrid	3128244
CR 31A	4.20	6.76	CR 31	Connie Woods Road in Waddington	NY 37	3128245
CR 33	5.03	8.10	CR 31	Chipman–Waddington Road in Waddington	NY 345	3128247
CR 34	6.57	10.57	CR 14	West Potsdam Road in Potsdam	NY 345	3128248
CR 35	15.08	24.27	NY 68 in Canton	Crary Mills–Norwood Road	Norwood village line in Potsdam	3120280	Discontinuous at US 11
CR 36	8.35	13.44	CR 14	Chase Mills–Louisville Road in Louisville	NY 56	3128249	Discontinuous at CR 39
CR 37 (1)	8.03	12.92	Massena village line in Massena	Massena–Helena–Franklin County Line Road	CR 53 / CR 55 in Brasher	5586618	Discontinuous at St. Regis River
CR 37 (2)	3.76	6.05	NY 37C	Massena–Helena–Franklin County Line Road in Brasher	Franklin County line (becomes CR 9)	5586617
CR 38	13.83	22.26	NY 310 in Madrid	Norfolk–Brasher Center Road	CR 53 in Brasher	3687580	Part west of CR 38A was formerly part of NY 56A
CR 38A	0.47	0.76	CR 38	West Main Street in Norfolk	NY 56	5586619	Formerly part of NY 56A
CR 39	4.90	7.89	NY 310 in Norfolk	Raymondville–Louisville Road	NY 37 in Louisville	3128251
CR 40	3.42	5.50	NY 56 in Norfolk	North Racquette Road	Massena village line in Louisville	3687581
CR 41	2.15	3.46	NY 37	Browning Road in Louisville	NY 131	3687582
CR 42	4.46	7.18	Massena village line	Massena–Massena Center Road in Massena	Kinnie Road	3687583
CR 42A	0.44	0.71	Trippany Road	Massena–Massena Center Road in Massena	CR 42	5586620
CR 43	1.49	2.40	NY 37B	Massena–Louisville Town Line Road in Louisville	NY 131	3687584	Formerly part of NY 131
CR 44	8.76	14.10	CR 38 in Madrid	Norfolk–Waddington Road	Waddington village line in Waddington	3128252
CR 45	1.39	2.24	Roosevelt Road	Rooseveltown Access Road in Massena	Haverstock Road	5586621	Discontinuous at Raquette River
CR 46	2.65	4.26	CR 37	Massena–Racquet River Road in Massena	NY 37C	3690334
CR 47	17.76	28.58	NY 72 in Parishville	Parishville–Norfolk Road	NY 56 in Norfolk	3120281	Discontinuous at NY 11B and US 11
CR 48	3.14	5.05	Norwood village line in Potsdam	Norwood–Knapps Station Road	CR 47 in Stockholm	3687616
CR 48A	0.37	0.60	End of county maintenance	Yaleville Road in Norfolk	NY 56	3687617
CR 49 (1)	7.46	12.01	NY 11B in Hopkinton	Hopkinton–Winthrop Road	US 11 / NY 420 in Stockholm	5586622
CR 49 (2)	1.39	2.24	NY 420	Hopkinton–Winthrop Road in Stockholm	NY 420	3690335
CR 49 (3)	7.99	12.86	NY 420 in Stockholm	Hopkinton–Winthrop Road	CR 38 in Norfolk	3690336
CR 50	5.34	8.59	NY 11C	Brasher Falls–Deer River Road in Brasher	CR 55	3690337
CR 51	3.87	6.23	CR 49	Fort Jackson–Wagstaff Road in Lawrence	CR 54	3690338
CR 52	2.97	4.78	NY 11C in Lawrence	North Lawrence–Moira Road	Franklin County line in Brasher (becomes CR 6)	3690340
CR 53	9.76	15.71	NY 11C	Brasher Falls–Helena Road in Brasher	CR 37 / CR 55	3690341
CR 54	5.50	8.85	CR 49 in Stockholm	Stockholm–Lawrence Road	US 11 in Lawrence	3690342	Part east of CR 55 was formerly part of NY 195
CR 55 (1)	5.44	8.75	NY 11B	Nicholville–Helena Road in Lawrence	US 11 / NY 11C	5586623	Part south of CR 54 was formerly part of NY 195; part of CR 54 to US 11 was formerly NY 853
CR 55 (2)	8.88	14.29	NY 11C in Lawrence	Nicholville–Helena Road	CR 37 / CR 53 in Brasher	3690343
CR 56	6.05	9.74	CR 47 in Parishville	Allens Falls Road	NY 72 in Hopkinton	3690344
CR 57	0.73	1.17	Hatch Road	West Stockholm Road in Stockholm	US 11	3690345
CR 58	7.67	12.34	NY 56 in Colton	Colton–Parishville Road	NY 72 in Parishville	3120282
CR 59	3.57	5.75	NY 56 in Pierrepont	West Hannawa Road	Potsdam village line in Potsdam	3690346
CR 60	7.54	12.13	NY 3 in Fine	Oswegatchie–Newton Falls Road	NY 3 in Clifton	3690347
CR 61	1.13	1.82	Front Street	Wanakena Road in Fine	NY 3	3690348
CR 62	2.39	3.85	North Street	Conifer Road in Piercefield	NY 3	3690349