| Fire | 847-272-2141 |
| Police | 847-564-2060 |
| Village Hall | 847-272-5050 |
| Northfield Township | 847-724-8300 |
| Cook County | 312-603-5656 |
| Post Office | 847-272-0018 |
| Park District | 847-291-2960 http://www.nbparks.org/ |
| Library | 847-272-6224 http://www.northbrook.info/ |
| Train | Metra 847-272-0228 http://metrarail.com/metra/en/home.html |
| Gas | NICOR 888-642-6748 |
| Electric | ComEd 800-334-7661 |
| Water | 847-272-5050 |
| Refuse | Veolia Environmental Services 847-272-4145 |
| Telephone | AT&T 800-288-2020 |
| Cable TV | Comcast 866-594-1234 |
| Northbrook School District #27 | 847-498-2610 http://www.nb27.org/ |
| Wiki | Wikipedia |
| Northbrook School District #28 | 847-498-7900 ww1.northbrook28.net |
| Northbrook/Glenview School District #30 | 847-498-4190 www.district30.k12.il.us |
| West Northfield School District #31 | 847-272-6880 http://www.dist31.k12.il.us/site/default.aspx?PageID=1 |
| School District #225 | 847-998-6100 http://www.glenbrook225.org/ |
| Homepage | www.northbrook.il.us |