Iona, South Dakota
Iona: unincorporated community in South Dakota
About
Iona is a city located in the county of Lyman in the U.S. state of South Dakota. Its population at the 2010 census was 81 and a population density of 1 people per km². After 10 years in 2020 city had an estimated population of 81 inhabitants.
Quick Facts about Iona
| Population | 81 (2020) |
| Country | United States of America |
| State | South Dakota (United States) |
| County | Lyman County |
| Area | 137.8 km2 |
| Latitude & Longitude | 43.5431,-99.4248 |
| Altitude | 1,693 feet / 516 meters |
| Time Zone | America/Chicago |
| Local time | 00:28:53 (2nd June 2026) |
| Density | 1 Pop. per km² as of 2020 |
| Population growth | 0% (2010-2020) |
| Weather | 82℉ Chance Showers And Thunderstorms 7-days weather |
Geography
Iona is located at 43°32'35"N 99°25'29"W (43.5430600, -99.4248200).
Iona map
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Weather
A slight chance of rain showers between 7am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 82. Southeast wind 13...
7-Day ForecastDemographics
The population of Iona increased by 0% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 81 | - | census |
| 2011 | 82 | 1.22% | estimation process |
| 2012 | 81 | -1.23% | estimation process |
| 2013 | 82 | 1.22% | estimation process |
| 2014 | 82 | 0% | estimation process |
| 2015 | 82 | 0% | estimation process |
| 2016 | 83 | 1.2% | estimation process |
| 2017 | 82 | -1.22% | estimation process |
| 2018 | 81 | -1.23% | estimation process |
| 2019 | 81 | 0% | estimation process |
| 2020 | 81 | 0% | estimation process |
Closest post offices linked to Iona.
| Post Office Name | City | ZIP |
|---|---|---|
| Hamill Post Office | Hamill (SD) | 57534 |
Other places with the same name (3)
- Iona, Idaho city in Idaho, United States with a population of 2,354 people.
- Iona, Minnesota city in Minnesota, United States with a population of 490 people.
- Iona, Florida census-designated place in Lee County, Florida with a population of 177 people.
Other cities in Lyman County
Cities, towns, neighborhoods & other populated places in Lyman County , SD.
| City Name | Population | Title |
|---|---|---|
| Lower Brule | 613 | Township in Lyman County, South Dakota |
| Presho | 489 | Human settlement in Lyman County, South Dakota, United States of America |
| Kennebec | 247 | City in and county seat of Lyman County, South Dakota, United States |
| Reliance | 210 | Town in Lyman County, South Dakota, United States |
| Vivian | 145 | Census-designated place in Lyman County, South Dakota, United States |
| Oacoma | 70 | Township in Lyman County, South Dakota |