| Index, Virginia | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Virginia#USA |
| Pushpin Label: | Index |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location within Virginia and the United States |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Virginia |
| Subdivision Type2: | County |
| Subdivision Name2: | King George |
| Unit Pref: | Imperial |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Coordinates: | 38.1936°N -77.08°W |
| Postal Code Type: | ZIP codes |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
Index is an unincorporated community located in King George County, in the U. S. state of Virginia. The area became known as Index after the establishment of a Post Office in 1898 by local merchant Peyton Parker who built a General Store a few years prior. The store was at the intersection of Kings Highway and Salem Church Road and the building is still there today. The store sold everything including cloths, furniture, and seed to local farmers. The Index Post Office closed in 1965 and the store a few years later. Prior to the naming of the Index Post Office, the area was known as Johnsville.