| Official Name: | Sandusky, Iowa |
| Settlement Type: | Census-designated place |
| Pushpin Map: | Iowa#USA |
| Pushpin Label: | Sandusky |
| Coordinates: | 40.4644°N -91.3869°W |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Name1: | Iowa |
| Subdivision Type2: | County |
| Subdivision Name2: | Lee |
| Subdivision Type3: | Townships |
| Subdivision Name3: | Jackson Montrose |
| Area Footnotes: | [1] |
| Area Total Sq Mi: | 2.67 |
| Area Land Sq Mi: | 1.43 |
| Area Water Sq Mi: | 1.24 |
| Area Total Km2: | 6.91 |
| Area Land Km2: | 3.69 |
| Area Water Km2: | 3.22 |
| Population As Of: | 2020 |
| Population Density Km2: | 80.45 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 543 |
| Postal Code Type: | ZIP Code |
| Postal Code: | 52632 (Keokuk) |
| Area Code: | 319 |
| Blank Name: | FIPS code |
| Blank Info: | 19-70545 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2804144 |
| Population Total: | 297 |
| Unit Pref: | Imperial |
| Population Density Sq Mi: | 208.42 |
Sandusky is an unincorporated community and census-designated place (CDP) in Lee County, Iowa, United States. It is in the southeast part of the county, on the west bank of the Mississippi River 4miles north of Keokuk, the county seat, and 6miles south of Montrose.
Sandusky was first listed as a CDP prior to the 2020 census. As of the 2020 census, its population was 297.[2]
Founded in the 1800s, Sandusky's population was 85 in 1902,[3] and 60 in 1925.[4]