| Official Name: | Sun Valley Lake, Iowa |
| Settlement Type: | Census-designated place |
| Pushpin Map: | Iowa |
| Pushpin Label: | Sun Valley Lake |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Iowa |
| Subdivision Type2: | County |
| Subdivision Name2: | Ringgold |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 7.01 |
| Area Land Km2: | 5.31 |
| Area Water Km2: | 1.70 |
| Area Total Sq Mi: | 2.71 |
| Area Land Sq Mi: | 2.05 |
| Area Water Sq Mi: | 0.66 |
| Population As Of: | 2020 |
| Population Total: | 187 |
| Population Density Km2: | 35.19 |
| Population Density Sq Mi: | 91.13 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 1139 |
| Coordinates: | 40.85°N -94.0683°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 50074[2] |
| Area Code: | 641 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 2585488 |
Sun Valley Lake is an unincorporated community and census-designated place in Ringgold County, Iowa, United States. Its population was 161 as of the 2010 census.[3] The community is located in northeastern Ringgold County on the shores of its namesake lake.
According to the U.S. Census Bureau, the community has an area of, of which is land and is water.[3]