| Berkshire Drive KinderCare | 14 Berkshire Dr, Crystal Lake, IL 60014 | Preschool |
| Cary Grove KinderCare | 324 Crystal St, Cary, IL 60013 | Preschool |
| Crystal Lake KinderCare | 645 Dakota St, Crystal Lake, IL 60012 | Preschool |
| La Petite Academy of Crystal Lake | 190 N Il Route 31, Crystal Lake, IL 60014 | Center |
| La Petite Academy of Lake In The Hills | 4540 W Algonquin Rd, Lake In The Hills, IL 60156 | Center |
| McHenry KinderCare | 4717 W Crystal Lake Rd, Mchenry, IL 60050 | Preschool |
| Randall Road KinderCare | 501 Rolls Rd, Algonquin, IL 60102 | Preschool |
| A Child's Place Learning Center | 1159 Adams Dr, Mchenry, IL 60051 | Center |
| Algonquin Preschool | 109 Washington St, Algonquin, IL 60102 | Preschool |
| Algonquin Road Elementary School Preschool | 975 Algonquin Rd, Fox River Grove, IL 60021 | Preschool |
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| Barlina House Preschool | 1 E Crystal Lake Ave, Crystal Lake, IL 60014 | Preschool |
| Bethany Lutheran Preschool | 76 W Crystal Lake Ave, Crystal Lake, IL 60014 | Preschool |
| Briargate Elementary School Preschool | 100 S Wulff St, Cary, IL 60013 | Preschool |
| Bright Horizons Child Care & Early Education | 290 Memorial Ct, Crystal Lake, IL 60014 | Center |
| Cary Head Start | 100 N Benton St Ste 3, Woodstock, IL 60098 | Preschool |
| Cary United Methodist Pre School | 500 1st St, Cary, IL 60013 | Preschool |
| Chesterbrook Academy | 8525 Redtail Dr, Crystal Lake, IL 60014 | Center |
| Childrens Gate Montessori | 3419 Walkup Rd, Crystal Lake, IL 60012 | Preschool |
| Childrens World | 40 W Acorn Ln, Lake In The Hills, IL 60156 | Center |
| Childtime of Mchenry - CLOSED | 4201 W Medical Center Dr, Mchenry, IL 60050 | Center |
| Childworks Preschool | 1203 Crystal Lake Rd, Lake In The Hills, IL 60156 | Preschool |
| Community Montessori Preschool Daycare | 640 McHenry Ave, Woodstock, IL 60098 | Preschool |
| Cotton Creek School Preschool | 545 Newport Ct, Island Lake, IL 60042 | Preschool |
| Crystal Lake Head Start | 100 N Benton St, Woodstock, IL 60098 | Preschool |
| Crystal Lake Montessori Preschool | 3013 S Country Club, Woodstock, IL 60098 | Preschool |
| Deer Path Elementary School Preschool | 2211 Crystal Lake Rd, Cary, IL 60013 | Preschool |
| Edgebrook Elementary School Preschool | 701 N Green St, Mchenry, IL 60050 | Preschool |
| Enrichment Preschool | 210 S McHenry Ave, Crystal Lake, IL 60014 | Preschool |
| Faith Community Preschool | 10547 Faiths Way, Huntley, IL 60142 | Preschool |
| First United Methodist Nursery School | 236 W Crystal Lake Ave, Crystal Lake, IL 60014 | Center |
| First United Methodist Preschool | 207 S Fleming Rd, Woodstock, IL 60098 | Preschool |
| Foundations Montessori School Preschool | 2651 W Algonquin Rd, Algonquin, IL 60102 | Preschool |
| Friendship House | 100 S Main St Ste 400, Crystal Lake, IL 60014 | Center |
| Glacier Ridge Elementary School Preschool | 1120 Village Rd, Crystal Lake, IL 60014 | Preschool |
| Goddard School | 801 Georgetown Dr, Cary, IL 60013 | Center |
| Grace Lutheran Preschool | 1300 Kishwaukee Valley Rd, Woodstock, IL 60098 | Preschool |
| Harrison Elementary School Preschool | 6809 Mccullom Lk Rd, Wonder Lake, IL 60097 | Preschool |
| Harvard Head Start | 100 N Benton St, Woodstock, IL 60098 | Preschool |
| Holy Cross Preschool & Kindergarten | 2107 3 Oaks Rd, Cary, IL 60013 | Preschool |
| House of Children | 2521 Harding Ln, Woodstock, IL 60098 | Center |
| I Am| I Can| Learning Center | 3707 Grant Rd, Mchenry, IL 60051 | Center |
| Immanuel Lutheran School Preschool | 300 S Pathway Ct, Crystal Lake, IL 60014 | Preschool |
| Joy Foundations Christian Preschool & Daycare | 108 S Lakewood Rd, Lake In The Hills, IL 60156 | Preschool |
| Kiddie Campus | 6610 W Rt 120, Mchenry, IL 60050 | Center |
| Kids Unlimited Preschool | 330 E Jackson St, Woodstock, IL 60098 | Preschool |
| Lake Barrington Academy of Stars | 22102 N Pepper Rd, Barrington, IL 60010 | Preschool |
| Leaps and Bounds Preschool and Day Care | 9243 Route 31, Lake In The Hills, IL 60156 | Preschool |
| Learning Tree Preschool of Crystal Lake | 485 W Woodstock St, Crystal Lake, IL 60014 | Preschool |
| Light of Christ Preschool | 100 Hanson Rd, Algonquin, IL 60102 | Preschool |
| Lilliput Island | 6415 South Rte 31, Crystal Lake, IL 60014 | Center |
| Little Learners Incorporated | 4145 Greenfield Ln, Lake In The Hills, IL 60156 | Center |
| Little Wonders Learning Center | 7407 Hancock Dr, Wonder Lake, IL 60097 | Center |
| Lord and Savior Lutheran Preschool | 9300 Ridgefield Rd, Crystal Lake, IL 60012 | Preschool |
| Lots of Tots Child Care | 202a W Burnett Rd, Island Lake, IL 60042 | Center |
| Martin Elementary School Preschool | 10920 Reed Rd, Lake In The Hills, IL 60156 | Preschool |
| Mc Henry Headstart Day Care Center | 100 N Benton St, Woodstock, IL 60098 | Preschool |
| McHenry County College Childrens Learning Center | 8900 Us Highway 14 Bldg C, Crystal Lake, IL 60012 | Center |
| McHenry Montessori School | 5213 W Elm St, Mchenry, IL 60050 | Center |
| McHenry Montessori School Preschool | 5213 W Elm St, Mchenry, IL 60050 | Preschool |
| Montessori Pathways | 133 Illinois St, Crystal Lake, IL 60014 | Preschool |
| Montessori Pathways School | 133 Illinois Str, Crystal Lake, IL 60014 | Center |
| Montini Catholic School Preschool | 1405 N Richmond Rd, Mchenry, IL 60050 | Preschool |
| My Father's World Preschool | 932 S McHenry Ave, Crystal Lake, IL 60014 | Preschool |
| Oak Hill Daycare | 2600 Crystal Lake Rd, Cary, IL 60013 | Center |
| Olson Elementary School Preschool | 720 W Judd St, Woodstock, IL 60098 | Preschool |
| Prairie Grove Elementary School Preschool | 3223 Il Route 176, Crystal Lake, IL 60014 | Preschool |
| Prairie Grove Extended Day Care | 701 Manor Rd, Crystal Lake, IL 60014 | Center |
| Prairiewood Elementary School Preschool | 3215 Hercules Rd, Woodstock, IL 60098 | Preschool |
| Ringwood School Primary Center Preschool | 4700 School Rd, Ringwood, IL 60072 | Preschool |
| Robert Crown School Preschool | 620 W Bonner Rd, Wauconda, IL 60084 | Preschool |
| Rocky Raccoon Preschool & Day Care Center | 100 Cary Algonquin Rd, Cary, IL 60013 | Preschool |
| Rogy's New Generation | 4099 W Algonquin Rd, Algonquin, IL 60102 | Center |
| Sedom Center Preschool | 1200 Claussen Dr, Woodstock, IL 60098 | Preschool |
| Shepherd of The Hills Preschool | 404 N Green St, Mchenry, IL 60050 | Preschool |
| Shining Stars Early Learning Center | 100 Country Side Dr, Algonquin, IL 60102 | Center |
| South Elementary School Preschool | 601 Golf Rd, Crystal Lake, IL 60014 | Preschool |
| St John The Baptist Catholic School | 2304 Church St, Mchenry, IL 60051 | Preschool |
| St Johns Lutheran School Preschool | 300 Jefferson St, Algonquin, IL 60102 | Preschool |
| St Margaret Mary Preschool | 119 S Hubbard St, Algonquin, IL 60102 | Preschool |
| St Paul's Christian Preschool | 485 W Woodstock St, Crystal Lake, IL 60014 | Preschool |
| St. Barnabas Christian Preschool | 8901 Cary Algonquin Rd, Cary, IL 60013 | Preschool |
| St. John's Lutheran Preschool | 401 Saint Johns Rd, Woodstock, IL 60098 | Preschool |
| St. Mark's Day School | 337 Ridge Rd, Barrington, IL 60010 | Preschool |
| Sunshine Early Learning Center | 960 E Oak St # 970, Lake In The Hills, IL 60156 | Center |
| TLC Preschool | Po Box 186, Huntley, IL 60142 | Preschool |
| The Children's Gate | 3419 Walkup Rd, Crystal Lake, IL 60012 | Center |
| The Goddard School | 4561 Princeton Ln, Lake In The Hills, IL 60156 | Center |
| The Joyful Noise Christian Preschool | 2107 W Lincoln Rd, Mchenry, IL 60051 | Preschool |
| The Learning Tree - Island Lake | 550 Newport Ct, Island Lake, IL 60042 | Preschool |
| The Learning Tree of Algonquin | 210 N Harrison St, Algonquin, IL 60102 | Center |
| The Learning Tree of Huntley | 11424 Rainsford Dr, Huntley, IL 60142 | Center |
| The Young Scholars Child Care Center | 501 Kora Ln, Island Lake, IL 60042 | Preschool |
| Three Oaks School Preschool | 1514 3 Oaks Rd, Cary, IL 60013 | Preschool |
| Thunderbird Preschool | 625 Rudat Ct, Crystal Lake, IL 60014 | Preschool |
| Transfiguration Preschool | 316 W Mill St, Wauconda, IL 60084 | Preschool |
| Trinity Oaks Christian Academy Preschool | 409 1st St, Cary, IL 60013 | Preschool |
| Turtle Express Day Care and Learning Center | 423 W Liberty St, Wauconda, IL 60084 | Preschool |
| Tutor Time Child Care & Learning Center | 2420 Harnish Dr, Algonquin, IL 60102 | Center |
| Verda Dierzen Early Learning Center | 2045 N Seminary Ave, Woodstock, IL 60098 | Preschool |
| Waters Edge Waldorf School Preschool | 150 W Bonner Rd, Wauconda, IL 60084 | Preschool |