Order		Cross- jurisdiction significant difference	Number of Jurisdictions Significantly			White average scale score	Black average scale score	White - Black Gap average scale score
			higher	not different	lower	2009
			higher	not different	lower
1 Houston	Houston	x	0	8	5	172	128	43
2 Charlotte	Charlotte	x	0	8	5	167	126	41
3 Austin	Austin	x	0	9	4	178	138	40
4 Boston	Boston	x	0	9	4	160	120	40
5 Chicago	Chicago	x	0	10	3	150	110	40
6 Los Angeles	Los Angeles	x	0	10	3	152	113	39
Large city	Large city		0	10	5	159	120	39
National public	National public	x	0	12	3	161	125	36
7 Miami-Dade	Miami-Dade	x	0	13	0	159	123	36
8 Fresno	Fresno	x	0	13	0	151	117	34
9 San Diego	San Diego	x	0	13	0	158	125	33
10 New York City	New York City	<	2	11	0	151	119	32
11 Jefferson County (KY)	Jefferson County (KY)	<	6	7	0	157	128	29
12 Milwaukee	Milwaukee	<	4	9	0	143	115	28
13 Cleveland	Cleveland	<	6	7	0	144	117	27
14 Philadelphia	Philadelphia	<	6	7	0	139	112	27
N/A Detroit	Detroit	‡	‡	‡	‡	‡	113	‡
N/A Baltimore City	Baltimore City	‡	‡	‡	‡	‡	110	‡
N/A Atlanta	Atlanta	‡	‡	‡	‡	‡	123	‡
‡ Reporting standards not met.
NOTE: Black includes African American, Hispanic includes Latino, and Pacific Islander includes Native Hawaiian. Race categories exclude Hispanic origin. Prior to 2011, students in the “two or more races” category were categorized as “unclassified”. National public and Large city are not included in sorting the jurisdictions. Score differences are calculated based on differences between unrounded scores.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Science Assessment.