Average scale scores and percentages for grade 8 mathematics, by all students and jurisdiction: 2009, 2007, 2005, and 2003
Year	Jurisdiction	All students
Year	Jurisdiction	Average scale score	Standard Error	Percentage	Standard Error
— Not available. † Not applicable. NOTE: DCPS = District of Columbia Public Schools. The NAEP Mathematics scale ranges from 0 to 500. Detail may not sum to totals because of rounding. Some apparent differences between estimates may not be statistically significant. Analyze results with NAEP Data Explorer. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2003, 2005, 2007, and 2009 Mathematics Assessments.
2009	National public	282	(0.3)	100	(†)
2009	Large city	271	(0.7)	100	(†)
2009	Atlanta	259	(1.6)	100	(†)
2009	Austin	287	(0.9)	100	(†)
2009	Baltimore City	257	(1.9)	100	(†)
2009	Boston	279	(1.3)	100	(†)
2009	Charlotte	283	(0.9)	100	(†)
2009	Chicago	264	(1.4)	100	(†)
2009	Cleveland	256	(1.0)	100	(†)
2009	Detroit	238	(2.7)	100	(†)
2009	District of Columbia (DCPS)	251	(1.3)	100	(†)
2009	Fresno	258	(1.2)	100	(†)
2009	Houston	277	(1.2)	100	(†)
2009	Jefferson County (KY)	271	(0.9)	100	(†)
2009	Los Angeles	258	(1.0)	100	(†)
2009	Miami-Dade	273	(1.1)	100	(†)
2009	Milwaukee	251	(1.5)	100	(†)
2009	New York City	273	(1.5)	100	(†)
2009	Philadelphia	265	(2.0)	100	(†)
2009	San Diego	280	(2.0)	100	(†)
2007	National public	280	(0.3)	100	(†)
2007	Large city	269	(0.7)	100	(†)
2007	Atlanta	256	(1.5)	100	(†)
2007	Austin	283	(1.1)	100	(†)
2007	Baltimore City	—	(†)	—	(†)
2007	Boston	276	(1.0)	100	(†)
2007	Charlotte	283	(1.2)	100	(†)
2007	Chicago	260	(1.9)	100	(†)
2007	Cleveland	257	(1.7)	100	(†)
2007	Detroit	—	(†)	—	(†)
2007	District of Columbia (DCPS)	248	(0.9)	100	(†)
2007	Fresno	—	(†)	—	(†)
2007	Houston	273	(1.2)	100	(†)
2007	Jefferson County (KY)	—	(†)	—	(†)
2007	Los Angeles	257	(1.1)	100	(†)
2007	Miami-Dade	—	(†)	—	(†)
2007	Milwaukee	—	(†)	—	(†)
2007	New York City	270	(1.8)	100	(†)
2007	Philadelphia	—	(†)	—	(†)
2007	San Diego	272	(1.4)	100	(†)
2005	National public	278	(0.2)	100	(†)
2005	Large city	265	(0.6)	100	(†)
2005	Atlanta	245	(1.7)	100	(†)
2005	Austin	281	(1.4)	100	(†)
2005	Baltimore City	—	(†)	—	(†)
2005	Boston	270	(1.5)	100	(†)
2005	Charlotte	281	(1.2)	100	(†)
2005	Chicago	258	(1.4)	100	(†)
2005	Cleveland	249	(1.6)	100	(†)
2005	Detroit	—	(†)	—	(†)
2005	District of Columbia (DCPS)	245	(0.9)	100	(†)
2005	Fresno	—	(†)	—	(†)
2005	Houston	267	(1.0)	100	(†)
2005	Jefferson County (KY)	—	(†)	—	(†)
2005	Los Angeles	250	(1.3)	100	(†)
2005	Miami-Dade	—	(†)	—	(†)
2005	Milwaukee	—	(†)	—	(†)
2005	New York City	267	(1.6)	100	(†)
2005	Philadelphia	—	(†)	—	(†)
2005	San Diego	270	(1.5)	100	(†)
2003	National public	276	(0.3)	100	(†)
2003	Large city	262	(0.7)	100	(†)
2003	Atlanta	244	(1.0)	100	(†)
2003	Austin	—	(†)	—	(†)
2003	Baltimore City	—	(†)	—	(†)
2003	Boston	262	(0.9)	100	(†)
2003	Charlotte	279	(1.2)	100	(†)
2003	Chicago	254	(1.5)	100	(†)
2003	Cleveland	253	(1.3)	100	(†)
2003	Detroit	—	(†)	—	(†)
2003	District of Columbia (DCPS)	243	(0.8)	100	(†)
2003	Fresno	—	(†)	—	(†)
2003	Houston	264	(1.1)	100	(†)
2003	Jefferson County (KY)	—	(†)	—	(†)
2003	Los Angeles	245	(1.2)	100	(†)
2003	Miami-Dade	—	(†)	—	(†)
2003	Milwaukee	—	(†)	—	(†)
2003	New York City	266	(1.7)	100	(†)
2003	Philadelphia	—	(†)	—	(†)
2003	San Diego	264	(1.2)	100	(†)