| Business | Phone |
| Delton Kellogg School 327 N Grove St, Delton 49046 | (269) 623-9275 |
| Delton Kellogg High School 327 N Grove St, Delton 49046 | (269) 623-9200 |
| Delton Kellogg Middle School 6325 Delton Rd, Delton 49046 | (269) 623-9251 |
| Delton Kellogg Superintendent 327 N Grove St, Delton 49046 | (269) 623-9225 |