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Characteristics of the 100 Largest School Districts in the United States: 1999-2000
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Table 4.-Distribution of regular public elementary and secondary schools with assigned membership in the 100 largest school districts in the United States*, by membership size: School year 1999-2000 - Part 2  ||  Part 1
Name of reporting district State Regular schools having mem-
bership
Mean Mem-
bership
Standard deviation Distribution of schools, by membership size
Min-
imum
10th per-
centile
25th per-
centile
Median 75th per-
centile
90th per-
centile
Max-
imum
Davis School District UT 71 817.9 442.0 348 423 534 694 914 1,322 2,312
Atlanta City School District GA 96 604.6 299.2 214 293 417 550 672 964 2,039
Seminole County School District FL 57 1,027.5 657.1 4 86 770 907 1,144 2,088 2,897
Greenville County School District SC 85 695.0 336.6 165 302 468 671 848 1,162 1,993
Santa Ana Unified CA 46 1,245.1 622.2 431 763 935 1,072 1,281 1,779 3,449
   
San Antonio Independent School District TX 91 624.4 414.2 19 282 382 512 685 1,192 2,219
Arlington Independent School District TX 64 873.5 596.5 14 521 663 740 874 1,019 3,393
Lee County School District FL 63 873.6 441.7 39 321 556 898 956 1,477 1,950
East Baton Rouge Parish School Board LA 91 578.1 271.7 173 301 373 504 697 1,003 1,341
Oakland Unified CA 85 633.7 473.5 18 243 335 508 794 1,070 2,320
   
Washoe County School District NV 81 666.3 425.4 50 352 452 555 678 980 2,461
Portland School District OR 91 537.0 340.8 13 226 322 475 618 878 1,912
Knox County School District TN 77 680.0 405.3 13 276 367 609 900 1,172 2,122
Fort Bend Independent School District TX 50 1,051.8 645.9 20 531 664 777 1,402 2,067 3,060
Prince William County Public Schools VA 61 860.7 591.3 364 458 514 637 1,015 1,308 3,073
   
Sacramento City Unified CA 73 690.9 523.6 234 346 424 563 709 998 3,112
Jefferson Parish School Board LA 79 652.2 421.3 110 278 411 560 759 1,013 2,771
Cumberland County Schools NC 75 677.1 468.4 9 216 352 558 834 1,227 2,527
Aldine Independent School District TX 61 825.9 401.4 25 262 617 818 941 1,071 2,211
Chesterfield County Public Schools VA 56 903.5 424.4 393 524 602 740 1,133 1,487 2,312
   
San Bernardino City Unified CA 53 922.4 586.4 378 440 568 789 964 1,224 2,980
Cincinnati City School District OH 77 605.2 360.3 216 345 416 509 651 925 2,103
Anchorage School District AK 83 580.9 440.5 39 213 404 476 579 906 2,346
North East Independent School District TX 52 937.8 559.6 35 493 558 805 996 1,938 2,739
Shelby County School District TN 43 988.5 507.7 40 327 620 1,019 1,146 1,682 2,448
   
Garland Independent School District TX 61 796.6 505.4 14 377 476 699 860 1,120 2,350
Minneapolis MN 92 498.3 377.9 1 47 252 452 640 778 1,955
San Juan Unified CA 75 626.9 400.6 13 370 425 486 655 1,044 1,943
Garden Grove Unified CA 61 778.3 395.8 352 448 537 674 799 1,542 2,052
Seattle WA 82 520.6 343.3 203 272 308 385 555 1,027 1,743
   
Wichita KS 94 504.5 398.6 11 165 277 372 600 916 2,181
Pasco County School District FL 48 988.7 507.8 205 526 680 876 1,193 1,512 3,331
Ysleta Independent School District TX 54 838.2 491.8 3 413 569 721 901 1,432 2,706
Buffalo City School District NY 69 608.1 256.0 15 282 424 589 786 923 1,171
Caddo Parish School Board LA 70 649.4 394.6 118 228 411 565 829 1,130 1,956
   
Alpine School District UT 51 882.9 376.6 18 487 636 819 1,078 1,557 1,731
St. Louis City MO 108 420.2 262.7 17 193 305 381 475 567 1,825
Escambia County School District FL 68 648.7 493.9 3 125 268 604 782 1,402 2,215
Clayton County School District GA 48 943.0 353.0 422 543 751 885 1,043 1,450 2,189
St. Paul MN 77 560.7 441.3 1 43 318 507 689 963 2,142
- Not applicable.

*Includes outlying areas, Bureau of Indian Affairs, and Department of Defense schools.
How to read this table: Using Dade County as an example, the table shows that 25 percent of the schools have a pupil membership of 584 or less, and 25 percent have a membership of 1,289 or more. If all the regular schools in Dade County were listed by size, the school at the mid-point on the list (the median) would have 877 pupils in membership. Dividing all students in regular schools by the number of such schools yields a mean, or average, size of 1,074.6 students. The standard deviation is a measure of how schools in the district are distributed between the minimum and maximum compared to the mean. Smaller standard deviations indicate that schools in the district are closer to the mean value while larger standard deviations indicate that school size is spread more widely across the range of possible values.

SOURCE: U.S. Department of Education, National Center for Education Statistics, Common Core of Data, "Public Elementary/Secondary School Universe Survey," 1999-2000, and "Local Education Agency Universe Survey," 1999-2000.

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