Representative samples of fourth- and eighth-grade public school students from 21 urban districts participated in the 2011 National Assessment of Educational Progress (NAEP) in reading. Eighteen of the districts participating in the 2011 NAEP Trial Urban District Assessment (TUDA) participated in earlier assessment years, while three districts participated for the first time in 2011. Between 900 and 2,700 students in each district were assessed at grades 4 and 8. Findings include: (1) No significant change in scores for most districts compared to 2009. At grade 4, average reading scores did not change significantly from 2009 to 2011 for public school students in the nation, large cities, or any of the 18 urban districts that participated in both years (figure A). At grade 8, average reading scores were higher in 2011 than in 2009 for public school students in the nation and large cities; (2) Among the 21 urban districts that participated in the 2011 reading assessment, scores for both fourth- and eighth-graders in 5 districts were higher than the scores for public school students attending schools in large cities (i.e., cities with populations of 250,000 or more) overall; and (3) Compared to large cities, scores for lower-income students are higher in six districts at grade 4 and four districts at grade 8. At grade 4, average scores for both higher- and lower-income students in Charlotte, Hillsborough County, Jefferson County, Miami-Dade, and New York City were higher than the scores for their peers in large cities (figure B). At grade 8, average scores for both higher- and lower-income students in Charlotte and Hillsborough County were higher than the scores for their peers in large cities. (Contains 22 figures and 25 tables.)