| Abbreviation | Definition |
|---|---|
| IMCPL | Indianapolis Marion County Public Library |
| INMC | Interfaith Network of Montgomery County |
| ISCC | Islamic Society of Chester County |
| ISDOC | Independent Special Districts of Orange County |
| ISOC | Islamic Society of Orange County |
| JAOC | Junior Achievement of Orange County |
| JCAN | Juneau County Adolescent Needs |
| JCAP | Jefferson County Academy of Pharmacy |
| JCAP | Juneau County Adolescent Program |
| JCAP | Juneau County Alternative Programs |
| JCAR | Jackson County Amateur Radio |
| JCAR | Jackson County ARES RACES |
| JCB | Jackson County Bank |
| JCBA | Jackson County Bar Association |
| JCBA | Jefferson County Bar Association |
| JCBS | Johnson County Board of Services |
| JCCAC | Jackson County Child Advocacy Center |
| JCCAC | Jackson County Civic Action Committee |
| JCCB | Johnson County Christmas Bureau |
| JCCC | Johnson County Community College |