Towns
| State | City/Town | Town Title |
|---|---|---|
| Illinois | Hamel | Hamel, IL |
| Illinois | Hamilton | Hamilton, IL |
| Illinois | Hammond | Hammond, IL |
| Illinois | Hampshire | Hampshire, IL |
| Illinois | Hampton | Hampton, IL |
| Illinois | Hanna City | Hanna City, IL |
| Illinois | Hanover | Hanover, IL |
| Illinois | Hanover Park | Hanover Park, IL |
| Illinois | Hardin | Hardin, IL |
| Illinois | Harmon | Harmon, IL |
| Illinois | Harrisburg | Harrisburg, IL |
| Illinois | Harristown | Harristown, IL |
| Illinois | Hartford | Hartford, IL |
| Illinois | Hartsburg | Hartsburg, IL |
| Illinois | Harvard | Harvard, IL |
| Illinois | Harvel | Harvel, IL |
| Illinois | Harvey | Harvey, IL |
| Illinois | Harwood Heights | Harwood Heights, IL |
| Illinois | Havana | Havana, IL |
| Illinois | Hazel Crest | Hazel Crest, IL |
| Illinois | Hebron | Hebron, IL |
| Illinois | Hecker | Hecker, IL |
| Illinois | Henderson | Henderson, IL |
| Illinois | Hennepin | Hennepin, IL |
| Illinois | Henning | Henning, IL |