The Dallas Morning News ran an article on March 21, 2010 that listed the percent of students who went to community college in Dallas (DCCC) and Collin County (CCCC) that needed at least one remediation class before taking college level classes and the local high school these students attended.
http://www.dallasnews.com/sharedcontent/dws/dn/latestnews/stories/032110dnmetremedial.417d43c.html
% who needed remediation - School/District - # who went to DCCC or CCCC from graduation class/total no. of grads in high school class ("unk" if not known)
26% - Frisco High/Frisco ISD - 127/389
27% - North/McKinney ISD - 115/378
27% - Hebron/Lewisville ISD - 113/unk
28% - Prosper High/Prosper ISD - 46/unk
28% - Centennial/Frisco ISD - 94/541
28% - Liberty/Frisco ISD - 119/unk
29% - The Colony/Lewisville ISD - 85/unk
35% - McKinney/McKinney ISD - 96/342
36% - Allen High/Allen ISD - 388/1,133
39% - Plano Sr. High/Plano ISD - 391/1,186
41% - Plano West/Plano ISD - 186/958
42% - Wakeland/Frisco ISD - 86/194
42% - Boyd/McKinney ISD - 126/315
45% - Plano East/Plano ISD - 391/1,171
45% - Flower Mound High/Lewisville ISD - 71/690
46% - Rowlett High/Garland ISD - 131/556
46% - Melissa High/Melissa ISD - 13/unk
46% - Royse City High/ Royse City ISD - 13/unk
46% - Rockwall-Heath/Rockwall ISD - 39/unk
48% - Little Elm High/Little Elm ISD - 58/unk
50% - Blue Ridge High/Blue Ridge ISD - 14/unk
52% - Wylie High/Wylie ISD - 218/500
53% - Celina High/Celina ISD - 36/unk
55% - out of state homeschoolers - 11/unk
55% - JJ Pearce/Richardson ISD - 67/459
55% - Poteet/Mesquite ISD - 85/378
56% - Horn/Mesquite ISD - 131/459
57% - Coppell High/Coppell ISD - 94/711
57% - N. Garland/Garland ISD - 126/423
59% - Mesquite High/Mesquite ISD - 120/504
60% - Richardson High/Richardson ISD - 86/391
62% - Berkner/Richardson ISD - 134/590
63% - Texas homeschoolers - 75/unk
65% - Garland High/Garland ISD - 111/489
66% - Sachse/Garland ISD - 119/512
66% - N. Mesquite/Mesquite ISD - 116/451
67% - Lake Highlands/Richardson ISD - 94/479
68% - MacArthur/Irving ISD - 82/421
68% - Rockwall High/Rockwall ISD - 40/459
68% - Pope John Paul II/private - 19/unk
70% - Booker T. arts magenet/Dallas ISD - 27/158
71% - Lewisville High/Lewisville ISD - 62/691
72% - White/Dallas ISD - 82/427
73% - Newman Smith/Carrollton-Farmers Branch - 70/365
73% - Anna High/Anna ISD - 22/unk
75% - Spruce/Dallas ISD - 32/190
75% - Woodrow/Dallas ISD - 63/234
75% - Highland Park High/Highland Park ISD - 16/520
76% - Bryan Adams/Dallas ISD - 59/277
78% - Creekview/Carrollton-Farmers Branch - 58/429
81% - Skyline/Dallas ISD - 210/862
81% - S. Oak Cliff/Dallas ISD - 42/243
81% - DeSoto High/De Soto ISD - 94/442
81% - GED recipients - 74/unk
82% - Willow Bend Academy/private - 22/unk
82% - Duncanville High/Duncanville ISD - 146/585
82% - Grand Prairie/Grand Prairie ISD - 100/432
82% - Hillcrest/Dallas ISD - 57/247
83% - Sunset/Dallas ISD - 116/393
83% - Nimitz/Irving ISD - 76/371
84% - Cedar Hill High/Cedar Hill ISD - 62/442
87% - Molina/Dallas ISD - 121/457
89% - Samuell/Dallas ISD - 35/252
90% - Irving High/Irving ISD - 62/363
91% - North Dallas/Dallas ISD - 67/230
95% - Lancaster High/Lancaster ISD - 39/237
98% - Kimball/Dallas ISD - 40/226
Community colleges can determine which students need remediation based on its own policies so there may be some differences with how DCCC and CCCC determine which students need remediation.