| Official Name: | Mona, Iowa |
| Settlement Type: | Census-designated place |
| Pushpin Map: | Iowa#USA |
| Pushpin Label: | Mona |
| Pushpin Label Position: | bottom |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Iowa |
| Subdivision Type2: | County |
| Subdivision Name2: | Mitchell |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 5.89 |
| Area Land Km2: | 5.89 |
| Area Water Km2: | 0.00 |
| Area Total Sq Mi: | 2.27 |
| Area Land Sq Mi: | 2.27 |
| Area Water Sq Mi: | 0.00 |
| Population As Of: | 2020 |
| Population Footnotes: | [2] |
| Population Total: | 35 |
| Population Density Km2: | 5.94 |
| Population Density Sq Mi: | 15.38 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 1165 |
| Coordinates: | 43.4872°N -92.9414°W |
| Postal Code Type: | ZIP Code |
| Postal Code: | 50472 (St. Ansgar) |
| Area Code: | 641 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 459167 |
| Blank1 Name: | FIPS code |
| Blank1 Info: | 18-53085 |
Mona is an unincorporated community and census-designated place in Mitchell County, Iowa, United States. As of the 2020 census the population of Mona was 35.[2]
Mona got its start in 1869, following construction of the Illinois Central Railroad through that territory. Mona was platted May 30, 1870, in sections 11 and 14, by Mary C. Agard, Benjamin Agard, Edward Gregory, and Charles Gregory.[3]
Mona had one school building, with an enrollment of 56 students, with two teachers, in 1917.[3]
Around that time, Mona had begun to decline in importance when most railroading business had been transferred to Lyle, Minnesota, across the Iowa-Minnesota border.[3]
Mona is located in the northern portion of Mitchell County; the community's northern border is the Minnesota state line. The city of Lyle, Minnesota, abuts Mona to the north. U.S. Route 218 runs along the northeast edge of the community, leading south 8miles to St. Ansgar, the post office serving Mona, and to Osage, the Mitchell county seat. To the north US 218 leads to Austin, Minnesota.
According to the U.S. Census Bureau, the Mona CDP has an area of 2.28sqmi, all land.[1] Otter Creek runs through the east side of the community, flowing southwest to the Cedar River at Otranto.