| Official Name: | Bonneau Beach, South Carolina |
| Settlement Type: | Census-designated place |
| Pushpin Map: | South Carolina |
| Pushpin Label: | Bonneau Beach |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location within the state of South Carolina |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | South Carolina |
| Subdivision Type2: | County |
| Subdivision Name2: | Berkeley |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Sq Mi: | 2.39 |
| Area Land Sq Mi: | 2.35 |
| Area Water Sq Mi: | 0.04 |
| Population As Of: | 2020 |
| Population Footnotes: | [2] |
| Population Total: | 1982 |
| Population Density Sq Mi: | 844.84 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 75 |
| Coordinates: | 33.3197°N -80.0006°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 29431 |
| Area Codes: | 843, 854 |
| Blank Name: | FIPS code |
| Blank Info: | 45-07535[3] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1231071[4] |
| Area Total Km2: | 6.18 |
| Area Land Km2: | 6.08 |
| Area Water Km2: | 0.11 |
| Population Density Km2: | 326.25 |
Bonneau Beach is a census-designated place (CDP) in Berkeley County, South Carolina, United States. The population was 1,929 at the 2010 census.[5] It is located on the shore of Lake Moultrie.