Order		Cross- jurisdiction significant difference	Number of Jurisdictions Significantly			All students average scale score
			higher	not different	lower	2009
			higher	not different	lower
1 Austin	Austin	x	0	0	16	149
National public	National public		0	1	17	149
2 Jefferson County (KY)	Jefferson County (KY)	<	1	0	15	145
3 Charlotte	Charlotte	<	2	2	12	141
4 Houston	Houston	<	2	3	11	138
5 San Diego	San Diego	<	2	3	11	138
6 Miami-Dade	Miami-Dade	<	3	2	11	137
Large city	Large city	<	6	1	11	134
7 Boston	Boston	<	6	2	8	130
8 New York City	New York City	<	6	2	8	129
9 Atlanta	Atlanta	<	6	4	6	127
10 Fresno	Fresno	<	8	6	2	124
11 Los Angeles	Los Angeles	<	8	6	2	123
12 Milwaukee	Milwaukee	<	9	5	2	122
13 Cleveland	Cleveland	<	9	5	2	121
14 Chicago	Chicago	<	9	5	2	121
15 Philadelphia	Philadelphia	<	9	7	0	119
16 Baltimore City	Baltimore City	<	14	2	0	113
17 Detroit	Detroit	<	14	2	0	113
NOTE: 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.