| Algonac, Michigan | |
| Official Name: | City of Algonac |
| Settlement Type: | City |
| Pushpin Map: | Michigan#USA |
| Pushpin Label Position: | left |
| Pushpin Label: | Algonac |
| Pushpin Map Caption: | Location within the state of Michigan##Location within the United States |
| Mapsize: | 250 |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Michigan |
| Subdivision Type2: | County |
| Subdivision Name2: | St. Clair |
| Government Type: | Mayor–council |
| Leader Title: | Mayor |
| Leader Name: | Rocky Gillis |
| Leader Title1: | Clerk |
| Leader Name1: | Lisa Borgacz |
| Leader Title2: | Manager |
| Leader Name2: | Denice Gerstenberg |
| Established Title: | Settled |
| Established Date: | 1805 |
| Established Title1: | Incorporated |
| Established Date1: | 1867 (village) 1967 (city) |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 4.47 |
| Area Land Km2: | 3.68 |
| Area Water Km2: | 0.79 |
| Area Total Sq Mi: | 1.73 |
| Area Land Sq Mi: | 1.42 |
| Area Water Sq Mi: | 0.31 |
| Population As Of: | 2020 |
| Population Total: | 4196 |
| Population Density Sq Mi: | 2954.93 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation M: | 177 |
| Elevation Ft: | 581 |
| Coordinates: | 42.6217°N -82.5336°W |
| Postal Code Type: | ZIP code(s) |
| Postal Code: | 48001 |
| Area Code: | 810 |
| Blank Name: | FIPS code |
| Blank Info: | 26-01180[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1624342 |
Algonac (