| Jensen Elementary Scholastic Academy Preschool | 3030 W Harrison St, Chicago, IL 60612 | Preschool |
| Jewish Council For Youth Orchard Branch | 957 W Grace St, Chicago, IL 60613 | Center |
| Jewish Council For Youth Services - Lakeview | 957 W Grace St, Chicago, IL 60613 | Preschool |
| Joan Dachs Bais Yaakov Elementary Preschool | 3200 W Peterson Ave, Chicago, IL 60659 | Preschool |
| John F Kennedy Elementary School Preschool | 3945 Wehrman Ave, Schiller Park, IL 60176 | Preschool |
| Johnson Elementary School Preschool | 1420 S Albany Ave, Chicago, IL 60623 | Preschool |
| Jolly Fun House Playschools | 7559 W Addison St, Chicago, IL 60634 | Preschool |
| Joyful Noise Christian Daycare | 4243 N North Ave, Chicago, IL 60639 | Center |
| Jungman Elementary School Preschool | 1746 S Miller St, Chicago, IL 60608 | Preschool |
| Kacs Early Childhood Center | 4300 N California Ave, Chicago, IL 60618 | Preschool |
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| Kaleidoscope Kids Academy | 6958 Windsor Ave, Berwyn, IL 60402 | Center |
| Kalina Preschool & Kindergarten | 4100 N California Ave, Chicago, IL 60618 | Preschool |
| Kangaroo Korner Day Care Center | 900 Beloit Ave, Forest Park, IL 60130 | Preschool |
| Kanoon Elementary Magnet School Preschool | 2233 S Kedzie Ave, Chicago, IL 60623 | Preschool |
| Kc's Academy & Early Childhood Education | 835 W Sheridan Rd, Chicago, IL 60613 | Preschool |
| Keeper's Institute | 2718 W 59th St, Chicago, IL 60629 | Center |
| Kellman Corporate Community Elementary Preschool | 751 S Sacramento Blv, Chicago, IL 60612 | Preschool |
| Kensington School | 2215 York Rd Ste 204, Oak Brook, IL 60523 | Center |
| Kensington School of The Highlands | 2215 York Rd Ste 203, Oak Brook, IL 60523 | Center |
| Kensington School of Western Springs | 1500 Walker St, Western Springs, IL 60558 | Center |
| Ketchings Cradle | 35 S 19th Ave, Maywood, IL 60153 | Center |
| Key Steps To Success | 4945 W Division St Fl 1, Chicago, IL 60651 | Center |
| Keystone Montessori School | Po Box 5548, River Forest, IL 60305 | Preschool |
| Kid'z Colony Day Care | 6287 S Archer Ave # 95, Chicago, IL 60638 | Preschool |
| Kid'z Imaginations Day Care | 5334 S Archer Ave, Chicago, IL 60632 | Center |
| Kiddie Academy of Carpentersville | 1000 W Adams St Apt 412, Chicago, IL 60607 | Preschool |
| Kiddie Garden Little Angels Child Care Center | 4235 S Kedzie Ave, Chicago, IL 60632 | Center |
| Kiddie Kollege | 6025 N California Ave, Chicago, IL 60659 | Center |
| Kiddie Korner Academy | 7730 W North Ave, Elmwood Park, IL 60707 | Center |
| Kiddie Korral Academy | Po Box 23020, Chicago, IL 60623 | Center |
| Kiddy Comfort Zone #1 Day Care Center | 817 N Hamlin Ave, Chicago, IL 60651 | Center |
| Kiddy Comfort Zone Day Care Center | 6441 North Ave Ste 103, Oak Park, IL 60302 | Center |
| Kiddy Kare Pre-School | 4444 46 South Kedzie, Chicago, IL 60632 | Preschool |
| Kids Academy | 3509 S King Dr, Chicago, IL 60653 | Center |
| Kids Corner Academy | 2416 S Michigan Ave, Chicago, IL 60616 | Center |
| Kids Count Too Daycare Center | 1106 W 63rd St # 08, Chicago, IL 60621 | Center |
| Kids Hope Child Development Center | 514 W 31st St, Chicago, IL 60616 | Preschool |
| Kids In Harmony Day School | 5039 W Berenice Ave, Chicago, IL 60641 | Center |
| Kids Work Chicago | 3842 N Claremont Ave, Chicago, IL 60618 | Preschool |
| Kids World Day Care | 5910 W Montrose Ave # 12, Chicago, IL 60634 | Center |
| Kidslife Daycare Center | 4447 W Fullerton Ave # 55, Chicago, IL 60639 | Preschool |
| Kidwatch Plus | 3901 N Ridgeway Ave, Chicago, IL 60618 | Preschool |
| Kidwatch Plus Inc | 3901 N Ridgeway Ave, Chicago, IL 60618 | Preschool |
| King Elementary School Preschool | 740 S Campbell Ave, Chicago, IL 60612 | Preschool |
| Kinzie Elementary School Preschool | 5625 S Mobile Ave, Chicago, IL 60638 | Preschool |
| Komarek Elementary School Preschool | 8940 W 24th St, Riverside, IL 60546 | Preschool |
| Kove Learning Academy | 3137 W 71st St, Chicago, IL 60629 | Center |
| La Progresiva Pre-School | 2609 N Kimball Ave, Chicago, IL 60647 | Preschool |
| Lafayette Elementary School Preschool | 2714 W Augusta Blvd, Chicago, IL 60622 | Preschool |
| Lake Shore Preparatory School Preschool | 300 W Hill St, Chicago, IL 60610 | Preschool |
| Lake Shore School | 5611 N Clark St, Chicago, IL 60660 | Center |
| Lake Shore School Preschool | 5611 N Clark St, Chicago, IL 60660 | Preschool |
| Lakefront Children's Academy | 400 E Randolph St Fl 6b, Chicago, IL 60601 | Preschool |
| Lakeview Development Center | 1531 W Lawrence Ave, Chicago, IL 60640 | Center |
| Langford A Elementary School Preschool | 6010 S Throop St, Chicago, IL 60636 | Preschool |
| Lara Elementary Academy Preschool | 4619 S Wolcott Ave, Chicago, IL 60609 | Preschool |
| Lasalle II Magnet Elementary School Preschool | 1148 N Honore St, Chicago, IL 60622 | Preschool |
| Lathrop Elementary School Preschool | 1440 S Christiana Av, Chicago, IL 60623 | Preschool |
| Latin School of Chicago Lower Preschool | 1531 N Dearborn Pkwy, Chicago, IL 60610 | Preschool |
| Laurance Armour Day School | 630 S Ashland Ave, Chicago, IL 60607 | Center |
| Lawndale Community Day Care | 1800 S Lawndale Ave, Chicago, IL 60623 | Center |
| Lawndale Elementary Community Academy Preschool | 3500 W Douglas Blvd, Chicago, IL 60623 | Preschool |
| Learn Charter School | 1132 S Homan Ave, Chicago, IL 60624 | Preschool |
| Learning Circle | 4250 W 63rd St, Chicago, IL 60629 | Center |
| Learning Express Child Care | 7750 W DEVON AVE # 54, Chicago, IL 60631 | Center |
| Learning Network Preschool | 5911 W Midway Park, Chicago, IL 60644 | Preschool |
| Lee Elementary School Preschool | 6448 S Tripp Ave, Chicago, IL 60629 | Preschool |
| Lee's Child Care Center | 1400 W Roosevelt Rd, Broadview, IL 60155 | Center |
| Lee's Child Care Center II | 1420 W Roosevelt Rd, Broadview, IL 60155 | Center |
| Lee's Cuddles N Care | 6106 W North Ave, Chicago, IL 60639 | Center |
| Legacy Elementary Charter School Preschool | 4217 W 18th St, Chicago, IL 60623 | Preschool |
| Leland Elementary School Preschool | 5221 W Congress Pkwy, Chicago, IL 60644 | Preschool |
| Les Finch Learning Tree Day Nursery School | 4217 W 16th St, Chicago, IL 60623 | Center |
| Let's Play Child Care Center | 6041 W 26th St, Cicero, IL 60804 | Center |
| Lewis Elementary School Preschool | 1431 N Leamington Av, Chicago, IL 60651 | Preschool |
| Lexington Elementary School Preschool | 415 Lexington St, Maywood, IL 60153 | Preschool |
| Libby Elementary School Preschool | 5300 S Loomis Blvd, Chicago, IL 60609 | Preschool |
| Liberty Elementary School Preschool | 4946 W 13th St, Cicero, IL 60804 | Preschool |
| Lifelink Bensenville Home Soc Headstart | 331 S York Rd, Bensenville, IL 60106 | Preschool |
| Lifelink Head Start Gary Ave | 331 S York Rd, Bensenville, IL 60106 | Preschool |
| Lifelink Headstart - Wheaton | 331 S York Rd, Bensenville, IL 60106 | Preschool |
| Lincoln Elementary School Preschool | 511 Park Ave, River Forest, IL 60305 | Preschool |
| Lincoln Elementary School Preschool | 811 Chicago Ave, Maywood, IL 60153 | Preschool |
| Lincoln Elementary School Preschool | 4300 Grove Ave, Brookfield, IL 60513 | Preschool |
| Lincoln Park Cooperative Nursery School | 1753 N Fern Ct, Chicago, IL 60614 | Preschool |
| Lincoln Park Preparatory | 108 W Germania Pl, Chicago, IL 60610 | Preschool |
| Lincoln Square Day Care | 4754 N Leavitt St, Chicago, IL 60625 | Center |
| Lindop Elementary School Preschool | 2400 S 18th Ave, Broadview, IL 60155 | Preschool |
| Linne Elementary School Preschool | 3221 N Sacramento Av, Chicago, IL 60618 | Preschool |
| Little Achievers Child Care Develop Center | 539 Bellwood Ave, Bellwood, IL 60104 | Center |
| Little Angels | 5117 N Lincoln Ave, Chicago, IL 60625 | Preschool |
| Little Angels DCC | 6407 N Maplewood Ave, Chicago, IL 60645 | Center |
| Little Angels Learning Center | 4247 N Austin Ave, Chicago, IL 60634 | Center |
| Little Beginnings Daycare | 847 Madison St, Oak Park, IL 60302 | Center |
| Little Folks Cottage | 5926 W Madison St # 30, Chicago, IL 60644 | Center |
| Little Fox Day Care Center | 5014 N Lincoln Ave, Chicago, IL 60625 | Center |
| Little Giant's Child Care Center | 3863 W Harrison St, Chicago, IL 60624 | Center |
| Little Green Tree House | 118 S Ashland Ave, Chicago, IL 60607 | Preschool |
| Little Harvard Academy | 2708 W Peterson Ave, Chicago, IL 60659 | Center |
| Little Kiddies Day Care Center | 1447 W Devon Ave, Chicago, IL 60660 | Center |