| Northbrook Community Nursery School | Po Box 2204, Northbrook, IL 60065 | Preschool |
| Northeastern Illinois University Child Care | 5500 N Saint Louis Ave, Chicago, IL 60625 | Center |
| Northfield Community Nursery School | 400 Wagner Rd, Winnetka, IL 60093 | Preschool |
| Northminster Nursery School | 2515 Central Park Ave, Evanston, IL 60201 | Center |
| Northshore Academy For Children | 6711 N Sheridan Rd, Chicago, IL 60626 | Preschool |
| Northside Catholic Academy Preschool | 5525 N Magnolia Ave, Chicago, IL 60640 | Preschool |
| Northside Catholic Academy Preschool | 6216 N Glenwood Ave, Chicago, IL 60660 | Preschool |
| Northwest Institute For Contemp Academy Preschool | 5108 W Division St, Chicago, IL 60651 | Preschool |
| Northwest Institute For Contemporary Learning | 4040 W Division St, Chicago, IL 60651 | Center |
| Northwest Suburban Day Care Center | 1755 Howard Ave, Des Plaines, IL 60018 | Center |
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| Norwood Park Elementary School Preschool | 5900 N Nina Ave, Chicago, IL 60631 | Preschool |
| Oak Park Friends Academy | 1192 S CUYLER AVE, Oak Park, IL 60304 | Center |
| Oak Park Montessori School Preschool | 937 Garfield St, Oak Park, IL 60304 | Preschool |
| Oak Park and River Forest Day Nursery | 1139 Randolph St, Oak Park, IL 60302 | Center |
| Oakton Comm Coll Early Care & Ed Center | 7701 Lincoln Ave, Skokie, IL 60077 | Center |
| Oliver W Holmes Elementary School Preschool | 508 N Kenilworth Ave, Oak Park, IL 60302 | Preschool |
| Onahan Elementary School Preschool | 6634 W Raven St, Chicago, IL 60631 | Preschool |
| One Leap Ahead Learning Center and Child Care | 3588 Milwaukee Ave, Northbrook, IL 60062 | Center |
| Open Arms Christian Child Development Center | 1850 Chestnut Ave, Glenview, IL 60025 | Center |
| Open Space Early Learning Center | 4846 N Clark St, Ste 200, Chicago, IL 60640 | Center |
| Orchard Place Elementary School Preschool | 2727 Maple St, Des Plaines, IL 60018 | Preschool |
| Oriole Park Elementary School Preschool | 5424 N Oketo Ave, Chicago, IL 60656 | Preschool |
| Orr Infant and Family Development | 730 N. Pulaski Rd., Chicago, IL 60606 | Center |
| Our Lady Immaculate Academy Preschool | 410 Washington Blvd, Oak Park, IL 60302 | Preschool |
| Our Lady of Destiny Preschool | 1880 Ash St, Des Plaines, IL 60018 | Preschool |
| Our Lady of Grace School Preschool | 2446 N Ridgeway Ave, Chicago, IL 60647 | Preschool |
| Our Lady of Lourdes Preschool | 4641 N Ashland Ave, Chicago, IL 60640 | Preschool |
| Our Lady of Perpetual Help Preschool | 1123 Church St, Glenview, IL 60025 | Preschool |
| Our Lady of Victory Preschool | 4434 N Laramie Ave, Chicago, IL 60630 | Preschool |
| Our Saviour Preschool | 7151 W Cornelia Ave, Chicago, IL 60634 | Preschool |
| PLCCA Ceda Head Start | Po Box 950, Maywood, IL 60153 | Preschool |
| PLCCA Debra Ann Porter 24/7 Childcare | Po Box 950, Maywood, IL 60153 | Center |
| PLCCA Proviso-Leyden Council | Po Box 950, Maywood, IL 60153 | Center |
| Paec Education Center Preschool | 1636 S 10th Ave, Maywood, IL 60153 | Preschool |
| Palmer Elementary School Preschool | 5051 N Kenneth Ave, Chicago, IL 60630 | Preschool |
| Panda Montessori Academy | 6921 N Ridge Blvd, Chicago, IL 60645 | Center |
| Parent Day Out | 1420 Maple Ave, Evanston, IL 60201 | Center |
| Park Ridge Intercultural Montessori | 8800 W Ballard Rd, Des Plaines, IL 60016 | Center |
| Park Ridge Recreation & Park District Pre-School | 2701 W Sibley St, Park Ridge, IL 60068 | Center |
| Park School Preschool | 828 Main St, Evanston, IL 60202 | Preschool |
| Park View Elementary School Preschool | 6200 Lake St, Morton Grove, IL 60053 | Preschool |
| Park View Lutheran School Preschool | 3919 N Monticello Av, Chicago, IL 60618 | Preschool |
| Park View Montessori | 805 N Burning Bush, Mount Prospect, IL 60056 | Preschool |
| Park View Montessori School | 805 N Burning Bush Ln, Mount Prospect, IL 60056 | Preschool |
| Park View Montessori School III | 640 W Irving Park Rd, Chicago, IL 60613 | Preschool |
| Passages Elementary Charter School Preschool | 1643 W Bryn Mawr Ave, Chicago, IL 60660 | Preschool |
| Passow Elementary School Preschool | 2838 Calwagner St, Franklin Park, IL 60131 | Preschool |
| Peace Infant and Toddler Center | 6242 N CLARK ST, Chicago, IL 60660 | Center |
| Pedia Learning Center - Luv "N" Care | 5776 N Lincoln Ave # 78, Chicago, IL 60659 | Center |
| Pee Wee's Day Care & Pre-School | 30 N 5th Ave, Maywood, IL 60153 | Preschool |
| Pegasus Children's Center | 7321 N Kildare Ave, Lincolnwood, IL 60712 | Center |
| Peirce Elementary International Studies School Preschool | 1423 W Bryn Mawr Ave, Chicago, IL 60660 | Preschool |
| Pennoyer Elementary School Preschool | 5200 N Cumberland, Harwood Heights, IL 60706 | Preschool |
| Peterson Elementary School Preschool | 5510 N Christiana Av, Chicago, IL 60625 | Preschool |
| Piccolo Elementary Specialty School Preschool | 1040 N Keeler Ave, Chicago, IL 60651 | Preschool |
| Picket Fence Day Care & Learning Center | 36 W Conti Pkwy, Elmwood Park, IL 60707 | Center |
| Pilgrim Community Nursery School | 460 Lake St, Oak Park, IL 60302 | Center |
| Pilgrim Lutheran School Preschool | 4300 N Winchester Av, Chicago, IL 60613 | Preschool |
| Pinocchio Child Care | 5932 W Gunnison St, Chicago, IL 60630 | Center |
| Pixi & Dixi Day Care Center | 1054 Fairway Dr, Bensenville, IL 60106 | Center |
| Plainfield Elementary School Preschool | 1850 Plainfield Dr, Des Plaines, IL 60018 | Preschool |
| Plato Academy Preschool | 733 Lee St Ste 200, Des Plaines, IL 60016 | Preschool |
| Pleasant Ridge Elementary School Preschool | 1730 Sunset Ridge Rd, Glenview, IL 60025 | Preschool |
| Poko Loko Child Care Center | 404 S Elmhurst Rd, Wheeling, IL 60090 | Center |
| Poko Loko Day Nursery School | 300 Waukegan Rd, Glenview, IL 60025 | Preschool |
| Poko Loko Infant / Toddler Center | 320 Waukegan Rd, Glenview, IL 60025 | Center |
| Poko Loko Nursery School | 300 Waukegan Rd, Glenview, IL 60025 | Preschool |
| Pope John XXIII School Preschool | 1120 Washington St, Evanston, IL 60202 | Preschool |
| Portage Park Elementary School Preschool | 5330 W Berteau Ave, Chicago, IL 60641 | Preschool |
| Positive Attitudes Working Daycare Preschool | 112 Chicago Ave, Oak Park, IL 60302 | Center |
| Precious Heart Day Care Center | 2301 W Roosevelt Rd, Broadview, IL 60155 | Preschool |
| Prescott Elementary School Preschool | 1632 W Wrightwood Av, Chicago, IL 60614 | Preschool |
| Prieto Math-Science Elementary School Preschool | 2231 N Central Ave, Chicago, IL 60639 | Preschool |
| Prince of Peace Child Development Center | 1210 N Waller Ave, Chicago, IL 60651 | Center |
| Pritzker Elementary School Preschool | 2009 W Schiller St, Chicago, IL 60622 | Preschool |
| Procare Early Headstart Center | 330 Eastern Ave, Bellwood, IL 60104 | Preschool |
| Proviso Area Except Child Center | 1000 Van Buren St, Maywood, IL 60153 | Preschool |
| Prussing Elementary School Preschool | 4650 N Menard Ave, Chicago, IL 60630 | Preschool |
| Puerta Abierta Preschool | 9023 Lincolnwood Dr, Evanston, IL 60203 | Preschool |
| Pulaski Elementary Fine Arts Academy Preschool | 2230 W Mclean Ave, Chicago, IL 60647 | Preschool |
| Pythagoras Childrens Academy Preschool | 893 N Church Rd, Elmhurst, IL 60126 | Preschool |
| Queen of All Saints School Preschool | 6230 N Lemont Ave, Chicago, IL 60646 | Preschool |
| Queen of Angels School Preschool | 4520 N Western Ave, Chicago, IL 60625 | Preschool |
| Queen of The Rosary School Preschool | 690 W Elk Grove Blvd, Elk Grove Village, IL 60007 | Preschool |
| RFCC at Oak Park River Forest High School | 201 N Scoville Ave, Oak Park, IL 60302 | Center |
| Rainbow Day Care | 3250 W Irving Park Rd, Chicago, IL 60618 | Center |
| Ram Little Lambs Learning Center | 3339 W Chicago Ave # 41, Chicago, IL 60651 | Center |
| Ravenswood Community Child Care Center | 4900 N Damen Ave, Chicago, IL 60625 | Preschool |
| Ravenswood Elementary School Preschool | 4332 N Paulina St, Chicago, IL 60613 | Preschool |
| Ravenswood Manor Child Care Center | 2756 W Montrose Ave # 58, Chicago, IL 60618 | Center |
| Reba Early Learning Center | 740 Custer Ave, Evanston, IL 60202 | Center |
| Red Wagon Child Care Center | 1225 E Davis St, Arlington Heights, IL 60005 | Center |
| Reilly Elementary School Preschool | 3650 W School St, Chicago, IL 60618 | Preschool |
| Reinberg Elementary School Preschool | 3425 N Major Ave, Chicago, IL 60634 | Preschool |
| Resurrection Behavioral Health at Procare | 1204 Van Buren St, Maywood, IL 60153 | Center |
| Resurrection Pre-School and After School | 3309 N Seminary Ave, Chicago, IL 60657 | Preschool |
| Rhodes Elementary School Preschool | 8931 Fullerton Ave, River Grove, IL 60171 | Preschool |
| Ridge Family Center For Learning | 650 Ridge Ave, Elk Grove Village, IL 60007 | Preschool |
| River Forest Community Center Preschool | 8020 Madison Street/gale Plaza, River Forest, IL 60305 | Preschool |
| Robert Frost Elementary School Preschool | 1308 S Cypress Dr, Mount Prospect, IL 60056 | Preschool |