| 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]
As of the census of 2020,[3] there were 297 people, 146 households, and 124 families residing in the community. The population density was 208.4 inhabitants per square mile (80.4/km2). There were 149 housing units at an average density of 104.5 per square mile (40.4/km2). The racial makeup of the community was 92.9% White, 0.0% Black or African American, 0.3% Native American, 0.7% Asian, 0.0% Pacific Islander, 1.0% from other races and 5.1% from two or more races. Hispanic or Latino persons of any race comprised 1.7% of the population.
Of the 146 households, 26.0% of which had children under the age of 18 living with them, 65.1% were married couples living together, 9.6% were cohabitating couples, 17.8% had a female householder with no spouse or partner present and 7.5% had a male householder with no spouse or partner present. 15.1% of all households were non-families. 8.2% of all households were made up of individuals, 2.1% had someone living alone who was 65 years old or older.
The median age in the community was 49.9 years. 16.5% of the residents were under the age of 20; 3.7% were between the ages of 20 and 24; 24.6% were from 25 and 44; 31.3% were from 45 and 64; and 23.9% were 65 years of age or older. The gender makeup of the community was 60.6% male and 39.4% female.
Founded in the 1800s, Sandusky's population was 85 in 1902,[4] and 60 in 1925.[5]