LeBron James has posted the most career points by a player younger than 21, with 4,649 points.

Interpreted as:

most career points by a player before the age of 21

	NAME	PTS	GP	MPG	PPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	MIN	REB	AST	STL	BLK	TOV	PF	+/-
1	LeBron James L. James	4,649	186	41.0	25.0	6.4	6.4	1.9	0.7	9.1	20.1	45.4	1.1	3.5	33.0	5.6	7.4	75.5	53.4	1.2	5.2	3.4	7,629	1,187	1,193	352	135	626	361	+165
2	Kevin Durant K. Durant	3,495	154	36.7	22.7	5.4	2.6	1.1	0.8	8.1	17.9	45.3	1.0	2.8	35.9	5.5	6.3	86.7	54.9	1.0	4.4	3.0	5,653	830	397	174	128	457	256	-1152
3	Carmelo Anthony C. Anthony	3,283	157	35.7	20.9	5.9	2.7	1.1	0.5	7.4	17.2	42.8	0.7	2.4	29.8	5.5	7.0	78.7	51.7	2.1	3.8	3.0	5,603	924	421	165	71	471	454	+231
4	Anthony Edwards A. Edwards	2,925	144	33.2	20.3	4.7	3.4	1.3	0.6	7.3	17.1	42.9	2.7	7.8	34.4	3.0	3.8	78.1	54.2	0.8	3.9	2.4	4,780	679	486	187	82	350	293	-40
5	Devin Booker D. Booker	2,897	160	31.5	18.1	3.0	3.1	0.8	0.3	6.4	15.0	42.4	1.6	4.5	35.5	3.8	4.5	83.5	53.3	0.5	2.5	2.6	5,033	473	494	122	43	419	481	-642
6	Luka Dončić L. Dončić	2,876	119	32.4	24.2	8.5	7.1	1.1	0.3	8.0	18.0	44.3	2.6	7.9	32.5	5.6	7.6	73.6	56.5	1.3	7.2	3.7	3,857	1,012	839	126	34	446	253	+142
7	Kobe Bryant K. Bryant	2,755	200	25.3	13.8	3.2	2.4	1.0	0.6	4.6	10.6	43.9	0.8	2.3	33.5	3.7	4.6	81.3	54.7	0.9	2.3	2.1	5,055	638	480	195	113	426	435	+416
8	Dwight Howard D. Howard	2,619	184	34.9	14.2	11.5	1.3	0.8	1.6	5.1	9.5	53.5	0.0	0.0	0.0	4.0	6.4	62.9	57.6	3.5	7.9	2.4	6,415	2,109	233	152	292	449	562	-106
9	Andrew Wiggins A. Wiggins	2,548	138	35.8	18.5	4.2	2.0	1.0	0.6	6.6	14.9	44.1	0.5	1.9	28.1	4.8	6.4	75.3	52.2	1.6	2.6	2.2	4,936	576	275	133	85	297	312	-647
10	LaMelo Ball L. Ball	2,311	126	30.9	18.3	6.4	7.0	1.6	0.4	6.6	15.3	43.1	2.5	6.6	37.8	2.7	3.2	82.6	54.9	1.4	5.0	3.1	3,890	803	884	200	48	390	373	+15
11	Jalen Green J. Green	2,279	118	33.0	19.3	3.7	3.1	0.7	0.3	6.7	15.8	42.1	2.5	7.2	34.2	3.6	4.5	78.8	54.3	0.5	3.1	2.4	3,890	432	361	81	30	282	189	-877
12	Victor Wembanyama V. Wembanyama	2,273	100	30.6	22.7	10.5	3.9	1.2	3.7	8.2	17.4	47.2	2.3	6.6	34.0	4.0	5.0	81.6	58.0	2.2	8.4	3.6	3,060	1,053	386	118	366	363	215	-10
13	Zion Williamson Z. Williamson	2,187	85	31.7	25.7	7.0	3.2	0.9	0.6	9.9	16.4	60.4	0.2	0.6	33.3	5.7	8.3	68.3	64.0	2.7	4.2	2.7	2,694	591	276	73	48	226	177	+151
14	Kevin Garnett K. Garnett	2,144	157	33.7	13.7	7.1	2.4	1.2	1.9	5.8	11.7	49.6	0.1	0.3	28.6	2.0	2.7	73.6	53.1	2.3	4.8	1.8	5,288	1,119	381	191	294	285	388	+116
15	Jayson Tatum J. Tatum	2,132	143	30.8	14.9	5.6	1.7	1.1	0.8	5.4	11.7	46.5	1.4	3.5	40.2	2.7	3.2	84.3	57.1	0.8	4.8	1.5	4,407	797	244	152	108	212	307	+673
16	Tracy McGrady T. McGrady	2,122	192	24.7	11.1	5.5	2.5	1.0	1.4	4.2	9.4	44.8	0.2	0.7	28.4	2.4	3.4	71.2	50.7	2.2	3.3	1.6	4,747	1,048	474	191	278	306	381	-262
17	Kyrie Irving K. Irving	2,071	100	32.8	20.7	3.7	5.5	1.3	0.4	7.7	16.4	46.7	1.7	4.1	40.7	3.7	4.4	85.6	56.5	0.7	3.0	3.2	3,279	373	552	133	37	315	238	-274
18	RJ Barrett	2,067	128	32.9	16.1	5.4	2.8	0.8	0.3	5.9	14.0	42.5	1.5	4.0	37.0	2.8	4.1	68.3	51.2	0.9	4.5	2.1	4,215	693	360	108	37	263	310	-188
19	Jabari Smith Jr. J. Smith Jr.	2,054	155	31.4	13.3	7.6	1.4	0.6	0.9	4.8	11.1	43.0	1.7	5.0	33.5	2.0	2.5	79.8	54.1	1.7	6.0	1.2	4,874	1,185	222	95	135	193	427	-639
20	Bradley Beal B. Beal	2,029	129	33.1	15.7	3.8	2.9	0.9	0.4	5.9	14.2	41.6	1.8	4.5	39.6	2.1	2.7	78.7	51.0	0.8	3.0	1.7	4,275	484	380	121	47	218	266	+21
21	Stephon Marbury S. Marbury	2,028	118	36.3	17.2	2.7	8.0	1.2	0.2	5.9	14.2	41.5	1.4	4.1	33.5	4.0	5.6	71.5	51.5	0.7	2.0	3.2	4,286	322	939	141	23	375	301	-75
22	Anthony Davis A. Davis	2,001	119	31.9	16.8	9.1	1.2	1.3	2.3	6.5	12.6	51.9	0.0	0.1	15.4	3.7	4.9	76.2	57.0	2.9	6.2	1.5	3,802	1,084	148	153	272	184	330	-242
23	Collin Sexton C. Sexton	1,987	116	31.5	17.1	2.9	2.8	0.7	0.1	6.5	14.9	43.7	1.3	3.5	37.3	2.8	3.3	83.2	52.2	0.8	2.2	2.2	3,652	342	322	77	8	257	258	-912
24	Tony Parker T. Parker	1,974	159	31.7	12.4	2.6	4.8	1.0	0.1	4.7	10.6	44.7	0.9	2.7	33.1	2.1	2.8	72.7	52.5	0.4	2.2	2.2	5,041	413	766	160	11	349	340	+627
25	Cliff Robinson C. Robinson	1,955	123		15.9					6.7			0.0			2.5	3.6	69.6