| 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 Round Lake | 2518 Route Highway 83, Round Lake, IL 60073 | Preschool |
| McHenry KinderCare | 4717 W Crystal Lake Rd, Mchenry, IL 60050 | Preschool |
| Round Lake Heights KinderCare | 700 W Rollins Rd, Round Lake, IL 60073 | Preschool |
| A Child Place of Volo | 401 E Rte 60, Round Lake, IL 60073 | Preschool |
| A Child's Place Learning Center | 1159 Adams Dr, Mchenry, IL 60051 | Center |
| Barlina House Preschool | 1 E Crystal Lake Ave, Crystal Lake, IL 60014 | Preschool |
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| Bethany Lutheran Preschool | 76 W Crystal Lake Ave, Crystal Lake, IL 60014 | Preschool |
| Big Hollow Primary School Preschool | 33335 N Fish Lake Rd, Ingleside, IL 60041 | 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 |
| Champions at Avon | 1617 N Rt 83, Round Lake, IL 60073 | Center |
| Chesterbrook Academy | 8525 Redtail Dr, Crystal Lake, IL 60014 | Center |
| Childrens Gate Montessori | 3419 Walkup Rd, Crystal Lake, IL 60012 | Preschool |
| Childtime of Mchenry - CLOSED | 4201 W Medical Center Dr, Mchenry, IL 60050 | Center |
| 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 |
| ETC Preschool - Wauconda | 924 Grand Blvd, Wauconda, IL 60084 | Preschool |
| Early Education Center | 882 W Nippersink Rd, Round Lake, IL 60073 | Preschool |
| Edgebrook Elementary School Preschool | 701 N Green St, Mchenry, IL 60050 | Preschool |
| Enrichment Preschool | 210 S McHenry Ave, Crystal Lake, IL 60014 | 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 |
| Friendship House | 100 S Main St Ste 400, Crystal Lake, IL 60014 | Center |
| Gavin South Jr High School Preschool | 25775 W Il Route 134, Ingleside, IL 60041 | Preschool |
| Goddard School | 801 Georgetown Dr, Cary, IL 60013 | Center |
| Grass Lake Elementary School Preschool | 26177 W Grass Lake, Antioch, IL 60002 | 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 |
| Kiddie Campus | 6610 W Rt 120, Mchenry, IL 60050 | Center |
| Kiddie Kottage Child Care | 608 Rollins Rd, Ingleside, IL 60041 | Center |
| Kiddie Kottage Childcare Too | 620 Rollins Rd, Ingleside, IL 60041 | Center |
| Kids Unlimited Preschool | 330 E Jackson St, Woodstock, IL 60098 | Preschool |
| Kidsuccess | Po Box 308, Ingleside, IL 60041 | Preschool |
| Kidsuccess - Spring Grove | Po Box 634, Spring Grove, IL 60081 | Center |
| 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 |
| Lilliput Island | 6415 South Rte 31, Crystal Lake, IL 60014 | Center |
| Little Saints Luthran Preschool | 5800 State Park Rd, Fox Lake, IL 60020 | Preschool |
| 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 |
| Lotus School Preschool | 29067 W Grass Lake, Spring Grove, IL 60081 | 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 |
| Messiah Lutheran Preschool | 25225 W Ivanhoe Rd, Wauconda, IL 60084 | 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 |
| Pepperment Stick Preschool | 1124 N Cedar Lake Rd, Round Lake, IL 60073 | Preschool |
| Peppermint Preschool | 2850 N Us Highway 12, Spring Grove, IL 60081 | 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 |
| Rlapd Child Development Center | 814 Hart Rd, Round Lake, IL 60073 | 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 |
| Round Lake Area Park District | 814 Hart Rd, Round Lake, IL 60073 | Preschool |
| Round Lake Area Park District Site II | 814 Hart Rd, Round Lake, IL 60073 | Preschool |
| Shepherd of The Hills Preschool | 404 N Green St, Mchenry, IL 60050 | Preschool |
| South Elementary School Preschool | 601 Golf Rd, Crystal Lake, IL 60014 | Preschool |
| St Bede Preschool | 36399 N Wilson Rd, Ingleside, IL 60041 | Preschool |
| St John The Baptist Catholic School | 2304 Church St, Mchenry, IL 60051 | Preschool |
| St Joseph Preschool | 118 Lincoln Ave, Round Lake, IL 60073 | 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 |
| The Children's Gate | 3419 Walkup Rd, Crystal Lake, IL 60012 | Center |
| The Goddard School In Round Lake | 1155 S Amarias Dr, Round Lake, IL 60073 | Preschool |
| 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 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 Lutheran Youth Services | 25519 W Il Route 134, Ingleside, IL 60041 | 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 |
| Verda Dierzen Early Learning Center | 2045 N Seminary Ave, Woodstock, IL 60098 | Preschool |
| Village Elementary School Preschool | 880 W Nippersink Rd, Round Lake, IL 60073 | Preschool |
| Waters Edge Waldorf School Preschool | 150 W Bonner Rd, Wauconda, IL 60084 | Preschool |
| Wauconda Grade School Preschool | 225 Osage St, Wauconda, IL 60084 | Preschool |