Kansas City Royals: 30 Home Run seasons only 11 times. High: Steve Balboni 36 in 1985.

In 1969 the American League added two teams:
- Kansas City Royals; zero HR league leaders
- Seattle Pilots, who moved to Milwaukee and became the Brewers and changed leagues; currently in the National League; seven HR league leaders

The Royals players have hit at least 30 Home Runs in a season only 11 times. Brewers have done it 38 times, including eight times at least 40 and even one 50 HR season. See below.

Royals:

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	Steve Balboni	36	1985	28	KCR	AL	160	662	600	74	146	28	2	88	52	4	166	5	0	5	14	1	1	.243	.307	.477	.783	*3/H
2	Gary Gaetti	35	1995	36	KCR	AL	137	578	514	76	134	27	0	96	47	6	91	8	3	6	7	3	3	.261	.329	.518	.846	*53/DH
3	Dean Palmer	34	1998	29	KCR	AL	152	639	572	84	159	27	2	119	48	3	134	6	0	13	18	8	2	.278	.333	.510	.844	*5D/H
4	Danny Tartabull	34	1987	24	KCR	AL	158	667	582	95	180	27	3	101	79	2	136	1	0	5	14	9	4	.309	.390	.541	.931	*9/DH
5	John Mayberry	34	1975	26	KCR	AL	156	683	554	95	161	38	1	106	119	16	73	4	1	5	8	5	3	.291	.416	.547	.963	*3D
6	Jermaine Dye	33	2000	26	KCR	AL	157	679	601	107	193	41	2	118	69	6	99	3	0	6	12	0	1	.321	.390	.561	.951	*9D/H
7	Bo Jackson	32	1989	26	KCR	AL	135	561	515	86	132	15	6	105	39	8	172	3	0	4	10	26	9	.256	.310	.495	.805	*7D/H8
8	Danny Tartabull	31	1991	28	KCR	AL	132	557	484	78	153	35	3	100	65	6	121	3	0	5	9	6	3	.316	.397	.593	.990	*9/DH
9	Kendrys Morales	30	2016	33	KCR	AL	154	618	558	65	147	24	0	93	48	2	120	7	0	5	20	0	0	.263	.327	.468	.795	*D/3H9
10	Chili Davis	30	1997	37	KCR	AL	140	567	477	71	133	20	0	90	85	16	96	1	0	4	15	6	3	.279	.386	.509	.896	*D/H
11	George Brett	30	1985	32	KCR	AL	155	665	550	108	184	38	5	112	103	31	49	3	0	9	12	9	1	.335	.436	.585	1.022	*5/HD

Brewers:

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	Prince Fielder	50	2007	23	MIL	NL	158	681	573	109	165	35	2	119	90	21	121	14	0	4	9	2	2	.288	.395	.618	1.013	*3/DH
2	Prince Fielder	46	2009	25	MIL	NL	162	719	591	103	177	35	3	141	110	21	138	9	0	9	14	2	3	.299	.412	.602	1.014	*3
3	Richie Sexson	45	2003	28	MIL	NL	162	718	606	97	165	28	2	124	98	7	151	9	0	5	18	2	3	.272	.379	.548	.927	*3
4	Richie Sexson	45	2001	26	MIL	NL	158	667	598	94	162	24	3	125	60	5	178	6	0	3	20	2	4	.271	.342	.547	.889	*3
5	Gorman Thomas	45	1979	28	MIL	AL	156	668	557	97	136	29	0	123	98	6	175	2	5	6	8	1	5	.244	.356	.539	.895	*8/D
6	Chris Carter	41	2016	29	MIL	NL	160	644	549	84	122	27	1	94	76	1	206	9	0	10	18	3	1	.222	.321	.499	.821	*3/HD
7	Ryan Braun	41	2012	28	MIL	NL	154	677	598	108	191	36	3	112	63	15	128	11	0	5	12	30	7	.319	.391	.595	.987	*7/DH
8	Ben Oglivie	41	1980	31	MIL	AL	156	660	592	94	180	26	2	118	54	19	71	5	0	9	5	11	9	.304	.362	.563	.925	*7/D98
9	Gorman Thomas	39	1982	31	MIL	AL	158	666	567	96	139	29	1	112	84	5	143	4	5	6	10	3	7	.245	.343	.506	.850	*8/H
10	Prince Fielder	38	2011	27	MIL	NL	162	692	569	95	170	36	1	120	107	32	106	10	0	6	17	1	1	.299	.415	.566	.981	*3/D
11	Jeromy Burnitz	38	1998	29	MIL	NL	161	691	609	92	160	28	1	125	70	7	158	4	1	7	9	7	4	.263	.339	.499	.838	*9/H8
12	Gorman Thomas	38	1980	29	MIL	AL	162	697	628	78	150	26	3	105	58	4	170	2	3	6	7	8	5	.239	.303	.471	.774	*8/D
13	Ryan Braun	37	2008	24	MIL	NL	151	663	611	92	174	39	7	106	42	4	129	6	0	4	13	14	4	.285	.335	.553	.888	*7/HD
14	George Scott	36	1975	31	MIL	AL	158	675	617	86	176	26	4	109	51	7	97	3	1	3	26	6	5	.285	.341	.515	.857	*3D/5H
15	Bill Hall	35	2006	26	MIL	NL	148	608	537	101	145	39	4	85	63	6	162	1	3	4	12	8	9	.270	.345	.553	.899	*65/8H4
16	Prince Fielder	34	2008	24	MIL	NL	159	694	588	86	162	30	2	102	84	19	134	12	0	10	12	3	2	.276	.372	.507	.879	*3/D
17	Ryan Braun	34	2007	23	MIL	NL	113	492	451	91	146	26	6	97	29	1	112	7	0	5	13	15	5	.324	.370	.634	1.004	*5/H
18	Jeromy Burnitz	34	2001	32	MIL	NL	154	651	562	104	141	32	4	100	80	9	150	5	0	4	8	0	4	.251	.347	.504	.851	*9/H
19	Geoff Jenkins	34	2000	25	MIL	NL	135	564	512	100	155	36	4	94	33	6	135	15	0	4	9	11	1	.303	.360	.588	.948	*7/H
20	John Jaha	34	1996	30	MIL	AL	148	636	543	108	163	28	1	118	85	1	118	5	0	3	16	3	1	.300	.398	.543	.941	*3D/H
21	Ben Oglivie	34	1982	33	MIL	AL	159	677	602	92	147	22	1	102	70	13	81	4	0	1	6	3	5	.244	.326	.453	.780	*7/H
22	Larry Hisle	34	1978	31	MIL	AL	142	600	520	96	151	24	0	115	67	3	90	5	3	5	14	10	6	.290	.374	.533	.906	7D8/H9
23	Ryan Braun	33	2011	27	MIL	NL	150	629	563	109	187	38	6	111	58	2	93	5	0	3	9	33	6	.332	.397	.597	.994	*7/HD
24	Jeromy Burnitz	33	1999	30	MIL	NL	130	580	467	87	126	33	2	103	91	7	124	16	0	6	11	7	3	.270	.402	.561	.963	*9/D
25	Rob Deer	33	1986	25	MIL	AL	134	546	466	75	108	17	3	86	72	3	179	3	2	3	4	5	2	.232	.336	.494	.830	*9/3H7
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	Prince Fielder	32	2010	26	MIL	NL	161	714	578	94	151	25	0	83	114	17	138	21	0	1	12	1	0	.261	.401	.471	.871	*3/D
27	Ryan Braun	32	2009	25	MIL	NL	158	708	635	113	203	39	6	114	57	1	121	13	0	3	6	20	6	.320	.386	.551	.937	*7/H
28	Carlos Lee	32	2005	29	MIL	NL	162	688	618	85	164	41	0	114	57	7	87	2	0	11	8	13	4	.265	.324	.487	.811	*7
29	Cecil Cooper	32	1982	32	MIL	AL	155	696	654	104	205	38	3	121	32	7	53	0	4	6	4	2	3	.313	.342	.528	.870	*3/D
30	Gorman Thomas	32	1978	27	MIL	AL	137	536	452	70	111	24	1	86	73	4	133	2	6	3	6	3	4	.246	.351	.515	.866	*8/H
31	Corey Hart	31	2010	28	MIL	NL	145	614	558	91	158	34	4	102	45	2	140	6	0	5	14	7	6	.283	.340	.525	.865	*9/H
32	Jeromy Burnitz	31	2000	31	MIL	NL	161	686	564	91	131	29	2	98	99	10	121	14	0	9	12	6	4	.232	.356	.456	.811	*9/HD
33	Greg Vaughn	31	1996	30	MIL	AL	102	442	375	78	105	16	0	95	58	4	99	4	0	5	6	5	2	.280	.378	.571	.948	*7/8HD
34	Tommy Harper	31	1970	29	MIL	AL	154	692	604	104	179	35	4	82	77	5	107	4	3	4	8	38	16	.296	.377	.522	.899	*54/78H9
35	Ryan Braun	30	2016	32	MIL	NL	135	564	511	80	156	23	3	91	46	10	98	4	0	3	20	16	5	.305	.365	.538	.903	*7/HD9
36	Corey Hart	30	2012	30	MIL	NL	149	622	562	91	152	35	4	83	44	5	151	11	2	3	13	5	0	.270	.334	.507	.841	*39/H
37	Greg Vaughn	30	1993	27	MIL	AL	154	667	569	97	152	28	2	97	89	14	118	5	0	4	6	10	7	.267	.369	.482	.850	*7D/H
38	Cecil Cooper	30	1983	33	MIL	AL	160	710	661	106	203	37	3	126	37	7	63	1	3	8	17	2	1	.307	.341	.508	.849	*3/DH