41 players hit at least 30 home runs in 2017.

In 1997 the majors expanded to 30 teams. Before that 30 players had never hit at least 30 home runs in a season. Starting that season:

Year	Count	Max
2000	47	50
1999	45	65
1996	43	52
2001	41	73
2016	38	47
2004	37	48
2006	34	58
1998	33	70
1997	31	58
2009	30	47
2003	30	47

In 2017 41 players hit at least 30 home runs. That ties for the fourth most. Two hit more than 50.

Rk	Player	HR	Year	Age	Tm	Lg	G	PA	AB	R	H	2B	3B	RBI	BB	IBB	SO	HBP	SH	SF	GDP	SB	CS	BA	OBP	SLG	OPS	Pos
1	Giancarlo Stanton	59	2017	27	MIA	NL	159	692	597	123	168	32	0	132	85	13	163	7	0	3	13	2	2	.281	.376	.631	1.007	*9/HD
2	Aaron Judge	52	2017	25	NYY	AL	155	678	542	128	154	24	3	114	127	11	208	5	0	4	15	9	4	.284	.422	.627	1.049	*9D/H
3	J.D. Martinez	45	2017	29	TOT	ML	119	489	432	85	131	26	3	104	53	8	128	0	0	4	23	4	0	.303	.376	.690	1.066	*9/DH
4	Khris Davis	43	2017	29	OAK	AL	153	652	566	91	140	28	1	110	73	1	195	6	0	7	20	4	0	.247	.336	.528	.864	*7D/H
5	Joey Gallo	41	2017	23	TEX	AL	145	532	449	85	94	18	3	80	75	1	196	8	0	0	3	7	2	.209	.333	.537	.869	537/HD
6	Nelson Cruz	39	2017	36	SEA	AL	155	645	556	91	160	28	0	119	70	7	140	12	0	7	15	1	1	.288	.375	.549	.924	*D/9H
7	Cody Bellinger	39	2017	21	LAD	NL	132	548	480	87	128	26	4	97	64	13	146	1	0	3	5	10	3	.267	.352	.581	.933	*37/9H8D
8	Mike Moustakas	38	2017	28	KCR	AL	148	598	555	75	151	24	0	85	34	7	94	3	0	6	18	0	0	.272	.314	.521	.835	*5D/H
9	Justin Smoak	38	2017	30	TOR	AL	158	637	560	85	151	29	1	90	73	3	128	2	0	2	17	0	1	.270	.355	.529	.883	*3/HD
10	Logan Morrison	38	2017	29	TBR	AL	149	601	512	75	126	22	1	85	81	8	149	5	0	3	12	2	0	.246	.353	.516	.868	*3DH
11	Edwin Encarnacion	38	2017	34	CLE	AL	157	669	554	96	143	20	1	107	104	5	133	5	0	5	18	2	0	.258	.377	.504	.881	*D3/H
12	Marcell Ozuna	37	2017	26	MIA	NL	159	679	613	93	191	30	2	124	64	4	144	0	0	2	18	1	3	.312	.376	.548	.924	*7/H8D9
13	Nolan Arenado	37	2017	26	COL	NL	159	680	606	100	187	43	7	130	62	9	106	4	1	6	21	3	2	.309	.373	.586	.959	*5/H
14	Charlie Blackmon	37	2017	30	COL	NL	159	725	644	137	213	35	14	104	65	9	135	10	3	3	4	14	10	.331	.399	.601	1.000	*8/H
15	Jay Bruce	36	2017	30	TOT	ML	146	617	555	82	141	29	2	101	57	0	139	2	0	3	11	1	1	.254	.324	.508	.832	*93/DH
16	Ryan Zimmerman	36	2017	32	WSN	NL	144	576	524	90	159	33	0	108	44	1	126	3	0	5	16	1	0	.303	.358	.573	.930	*3/HD
17	Joey Votto	36	2017	33	CIN	NL	162	707	559	106	179	34	1	100	134	20	83	8	0	6	16	5	1	.320	.454	.578	1.032	*3
18	Paul Goldschmidt	36	2017	29	ARI	NL	155	665	558	117	166	34	3	120	94	15	147	8	0	4	14	18	5	.297	.404	.563	.966	*3/HD
19	Justin Upton	35	2017	29	TOT	AL	152	635	557	100	152	44	0	109	74	3	180	3	0	1	9	14	5	.273	.361	.540	.901	*7/H
20	George Springer	34	2017	27	HOU	AL	140	629	548	112	155	29	0	85	64	1	111	11	0	4	11	5	7	.283	.367	.522	.889	*8*9/DH
21	Brian Dozier	34	2017	30	MIN	AL	152	705	617	106	166	30	4	93	78	6	141	8	0	2	11	16	7	.269	.357	.496	.853	*4/H
22	Gary Sanchez	33	2017	24	NYY	AL	122	525	471	79	131	20	0	90	40	1	120	10	0	4	9	2	1	.278	.345	.531	.876	*2D/H3
23	Mike Trout	33	2017	25	LAA	AL	114	507	402	92	123	25	3	72	94	15	90	7	0	4	8	22	4	.306	.442	.629	1.071	*8/D
24	Manny Machado	33	2017	24	BAL	AL	156	690	630	81	163	33	1	95	50	3	115	1	0	9	17	9	4	.259	.310	.471	.782	*5
25	Jose Abreu	33	2017	30	CHW	AL	156	675	621	95	189	43	6	102	35	6	119	15	0	4	21	3	0	.304	.354	.552	.906	*3D
Rk	Player	HR	Year	Age	Tm	Lg	G	PA	AB	R	H	2B	3B	RBI	BB	IBB	SO	HBP	SH	SF	GDP	SB	CS	BA	OBP	SLG	OPS	Pos
26	Francisco Lindor	33	2017	23	CLE	AL	159	723	651	99	178	44	4	89	60	6	93	4	5	3	11	15	3	.273	.337	.505	.842	*6/D
27	Josh Donaldson	33	2017	31	TOR	AL	113	496	415	65	112	21	0	78	76	1	111	3	0	2	5	2	2	.270	.385	.559	.944	*5/D6H
28	Jonathan Schoop	32	2017	25	BAL	AL	160	675	622	92	182	35	0	105	35	0	142	11	0	7	20	1	0	.293	.338	.503	.841	*4/6
29	Anthony Rizzo	32	2017	27	CHC	NL	157	691	572	99	156	32	3	109	91	11	90	24	0	4	21	10	4	.273	.392	.507	.899	*34/H75
30	Adam Duvall	31	2017	28	CIN	NL	157	647	587	78	146	37	3	99	39	1	170	10	0	11	11	5	3	.249	.301	.480	.782	*7/H3D
31	Eric Thames	31	2017	30	MIL	NL	138	551	469	83	116	26	4	63	75	5	163	7	0	0	6	4	2	.247	.359	.518	.877	*37H/9D
32	Travis Shaw	31	2017	27	MIL	NL	144	606	538	84	147	34	1	101	60	6	138	4	1	3	20	10	0	.273	.349	.513	.862	*5/HD3
33	Lucas Duda	30	2017	31	TOT	ML	127	491	423	50	92	28	0	64	60	6	135	6	0	2	9	0	0	.217	.322	.496	.818	*3DH
34	Steven Souza	30	2017	28	TBR	AL	148	617	523	78	125	21	2	78	84	2	179	7	2	1	9	16	4	.239	.351	.459	.810	*9/DH8
35	Rougned Odor	30	2017	23	TEX	AL	162	651	607	79	124	21	3	75	32	5	162	8	0	4	13	15	6	.204	.252	.397	.649	*4/HD
36	Scott Schebler	30	2017	26	CIN	NL	141	531	473	63	110	25	2	67	39	5	125	14	0	5	7	5	3	.233	.307	.484	.791	*98H
37	Domingo Santana	30	2017	24	MIL	NL	151	607	525	88	146	29	0	85	73	2	178	6	0	3	12	15	4	.278	.371	.505	.875	*9/H
38	Wil Myers	30	2017	26	SDP	NL	155	649	567	80	138	29	3	74	70	3	180	5	0	7	15	20	6	.243	.328	.464	.792	*3/H4D
39	Jake Lamb	30	2017	26	ARI	NL	149	635	536	89	133	30	4	105	87	13	152	7	0	5	15	6	4	.248	.357	.487	.844	*5/HD
40	Mark Reynolds	30	2017	33	COL	NL	148	593	520	82	139	22	1	97	69	0	175	1	0	3	12	2	1	.267	.352	.487	.839	*3/HD7
41	Kyle Schwarber	30	2017	24	CHC	NL	129	486	422	67	89	16	1	59	59	1	150	5	0	0	6	1	1	.211	.315	.467	.782	*7H/D23

Maybe the most surprising is the last name on the list, Kyle Schwarber, whom many had given up as a lost cause early in the season.

Among the 41 with at least 30 homers:
- most AB: Francisco Lindor: 651, 33 HR
- fewest AB: Mike Trout: 402; 33 HR

- highest BA: Charlie Blackmon: .331; 37 HR
- lowest BA: Rougned Odor: .204; 30 HR

- highest OBP: Joey Votto: .454; 36 HR
- highest OBP: Mike Trout: .442; 33 HR
- Lowest OBP: Rougned Odor: .252; 30 HR

- highest SLG: JD Martine: .690; 45 HR in two "leagues"
- highest SLG: Giancarlo Stanton .631, 59 HR
- highest SLG: Mike Trout: .629, 33 HR
- lowest SLG: Rougned Odor: .397; 30 HR

- highest OPS: Mike Trout: 1.071, 33 HR
- lowest OPS: Rougned Odor:  .649; 30 HR

- most BB: Joey Votto: 134; 36 HR
- most BB: Aaron Judge 127; 52 HR
- fewest BB: Rougned Odor: 32; 30 HR

- most SO: Aaron Judge: 208; 52 HR
- fewest SO: Joey Votto: 83 SO; 36 HR

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