Order		Cross- jurisdiction significant difference	Number of Jurisdictions Significantly			Not eligible percent at or above Basic
			higher	not different	lower	2009
			higher	not different	lower
1 Austin	Austin	>	0	0	15	86
2 Jefferson County (KY)	Jefferson County (KY)	x	1	4	10	77
National public	National public		1	4	12	76
3 Houston	Houston	x	1	8	6	70
4 Fresno	Fresno	x	1	9	5	69
5 Charlotte	Charlotte	<	2	7	6	69
6 San Diego	San Diego	x	1	11	3	68
Large city	Large city	<	3	10	4	65
7 Miami-Dade	Miami-Dade	<	2	10	3	63
8 Atlanta	Atlanta	<	2	11	2	63
9 Boston	Boston	<	4	9	2	59
10 Los Angeles	Los Angeles	<	5	8	2	56
11 New York City	New York City	<	2	11	2	56
12 Chicago	Chicago	<	5	8	2	53
13 Philadelphia	Philadelphia	<	1	14	0	52
14 Milwaukee	Milwaukee	<	7	6	2	50
15 Baltimore City	Baltimore City	<	13	2	0	35
16 Detroit	Detroit	<	13	2	0	31
N/A Cleveland	Cleveland	‡	‡	‡	‡	‡
‡ Reporting standards not met.
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.