| Official Name: | Jacob, Illinois |
| Settlement Type: | Unincorporated community |
| Nickname: | God's Country |
| Pushpin Map: | Illinois#USA |
| Pushpin Label: | Jacob |
| Pushpin Label Position: | left |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Jackson |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 354 |
| Coordinates: | 37.745°N -89.5369°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 62950 |
| Area Code: | 618 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 411015[1] |
Jacob is an unincorporated community in Jackson County, Illinois, United States. Jacob is located along a railroad line 3miles northwest of Gorham. Jacob has a post office with ZIP code 62950.[2]