| Business | Phone |
| Williston Park Village Justice 494 Willis Ave, Williston Park 11596 | (516) 248-5150 |
| Williston Park Village Office 494 Willis Ave, Williston Park 11596 | (516) 746-2193 |
| Williston Park Water District William & Campbell Aveamp;, Williston Park 11596 | (516) 873-7670 |