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 | 1,027 ft (313 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 | 0461154 |
St. Marys is a city in Warren County, Iowa, United States. The population was 108 at the time of the 2020 census.
St. Marys is part of the Des Moines–West Des Moines Metropolitan Statistical Area.
Demographics
| 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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2010 census
At the 2010 census there were 127 people in 42 households, including 34 families, in the city. The population density was 907.1 inhabitants per square mile (350.2/km2). There were 46 housing units at an average density of 328.6 per square mile (126.9/km2). The racial makup of the city was 99.2% White and 0.8% from two or more races. Hispanic or Latino of any race were 1.6%.
Of the 42 households 50.0% had children under the age of 18 living with them, 59.5% were married couples living together, 19.0% had a female householder with no husband present, 2.4% had a male householder with no wife present, and 19.0% were non-families. 16.7% of households were one person and 11.9% were one person aged 65 or older. The average household size was 3.02 and the average family size was 3.35.
The median age was 37.6 years. 35.4% of residents were under the age of 18; 6.4% were between the ages of 18 and 24; 21.3% were from 25 to 44; 29.2% were from 45 to 64; and 7.9% were 65 or older. The gender makeup of the city was 44.1% male and 55.9% female.
See also
In Spanish: St. Marys (Iowa) para niños
