St. Marys, Iowa facts for kids
Quick facts for kids
St. Marys, Iowa
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Location of St. Marys, Iowa
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| Country |  United States |
| State |  Iowa |
| County | Warren |
| Area | |
| • Total | 0.14 sq mi (0.37 km2) |
| • Land | 0.14 sq mi (0.37 km2) |
| • Water | 0.00 sq mi (0.00 km2) |
| Elevation | 1,037 ft (316 m) |
| Population
(2020)
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| • Total | 108 |
| • Density | 765.96/sq mi (295.33/km2) |
| Time zone | UTC-6 (Central (CST)) |
| • Summer (DST) | UTC-5 (CDT) |
| FIPS code | 19-70095 |
| GNIS feature ID | 2396506 |
St. Marys or Saint Marys is a small city in Warren County, Iowa, United States. It is a part of the larger Des Moines metropolitan area. In 2020, the city had a population of 108 people.
Contents
History of St. Marys
St. Marys was first established around the year 1870. When it was first created, its name was spelled with an apostrophe: St. Mary's.
Geography of St. Marys
St. Marys is a very small city. It covers a total area of about 0.14 square miles (0.37 square kilometers). All of this area is land, meaning there are no large lakes or rivers within the city limits.
Population and People
| Historical populations | ||
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| Year | Pop. | ±% |
| 1880 | 35 | — |
| 1930 | 89 | +154.3% |
| 1940 | 84 | −5.6% |
| 1950 | 89 | +6.0% |
| 1960 | 94 | +5.6% |
| 1970 | 105 | +11.7% |
| 1980 | 111 | +5.7% |
| 1990 | 113 | +1.8% |
| 2000 | 134 | +18.6% |
| 2010 | 127 | −5.2% |
| 2020 | 108 | −15.0% |
| Source: and Iowa Data Center Source: |
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St. Marys in 2020
According to the 2020 census, 108 people lived in St. Marys. There were 44 households and 36 families in the city. The population density was about 767 people per square mile.
Most residents (96.3%) were White. About 2.8% of the population identified as Hispanic or Latino.
The average age of people in St. Marys was 37.5 years. About 21.3% of residents were under 20 years old. People aged 65 or older made up 20.4% of the population. Slightly more than half of the residents (53.7%) were female.
St. Marys in 2010
The 2010 census showed that 127 people lived in St. Marys. There were 42 households, with 34 of them being families. The population density was about 907 people per square mile.
Almost all residents (99.2%) were White. About 1.6% of the population was Hispanic or Latino.
Many households (50%) had children under 18 living with them. The average age in the city was 37.6 years. About 35.4% of residents were under 18 years old. Females made up 55.9% of the population.
See also
In Spanish: St. Marys (Iowa) para niños
