New York players 30 Home Runs home or road in a season.

Yankees home

Rk	I	Player	Split	Year	G	HR	GS	PA	AB	R	H	2B	3B	RBI	SB	CS	BB	SO	BA	OBP	SLG	OPS	TB	GDP	HBP	SH	SF	IBB	ROE	BAbip	tOPS+	sOPS+
1		Babe Ruth	Home	1921	78	32	77	339	256	94	103	24	7	80	11	7	80	34	.402	.545	.926	1.470	237		0	3				.374	116	276
2		Roger Maris	Home	1961	79	30	78	325	280	59	80	6	0	73	0	0	39	31	.286	.372	.629	1.001	176	9	2	0	4	0	3	.224	101	165
3		Lou Gehrig	Home	1934	77	30	77	340	290	68	120	20	4	98	4	3	49	17	.414	.500	.821	1.321	238		1	0		5	2	.370	124	244

Provided by Baseball-Reference.com: View Play Index Tool Used
Generated 1/23/2017.

Yankees road

Rk	I	Player	Split	Year	G	HR	GS	PA	AB	R	H	2B	3B	RBI	SB	CS	BB	SO	BA	OBP	SLG	OPS	TB	GDP	HBP	SH	SF	IBB	ROE	BAbip	tOPS+	sOPS+
1		Babe Ruth	Away	1927	78	32	78	374	287	76	98	19	4	94	3	2	76	47	.341	.479	.770	1.249	221		0	11				.317	98	247
2		Roger Maris	Away	1961	82	31	82	373	310	73	79	10	4	68	0	0	55	36	.255	.373	.613	.986	190	9	5	0	3	0	6	.195	99	173
3		Mickey Mantle	Away	1961	79	30	78	347	284	68	87	8	0	69	6	2	60	68	.306	.424	.651	1.075	185	0	0	0	3	3	5	.302	89	198

Provided by Baseball-Reference.com: View Play Index Tool Used
Generated 1/23/2017.

No New York Giant, Brooklyn Dodger or Met ever hit 30 home runs either home or road.