There are 3 zip codes in Hardin County, Illinois. The most populated is 62931, located in Elizabethtown. * 2024 populations estimated based on the latest ACS 5-year data.
Zip Code | City | Population |
---|---|---|
62931 | Elizabethtown | 1,335 |
62982 | Rosiclare | 1,131 |
62919 | Cave In Rock | 731 |