Population by Age in St. Mary's
*Base on 2010 Data
| Total population | 283 | 100.00% |
| Under 5 years | 19 | 6.71% |
| 5 to 9 years | 17 | 6.01% |
| 10 to 14 years | 15 | 5.30% |
| 15 to 19 years | 13 | 4.59% |
| 20 to 24 years | 2 | 0.71% |
| 25 to 29 years | 10 | 3.53% |
| 30 to 34 years | 20 | 7.07% |
| 35 to 39 years | 38 | 13.43% |
| 40 to 44 years | 30 | 10.60% |
| 45 to 49 years | 31 | 10.95% |
| 50 to 54 years | 30 | 10.60% |
| 55 to 59 years | 27 | 9.54% |
| 60 to 64 years | 14 | 4.95% |
| 65 to 69 years | 9 | 3.18% |
| 70 to 74 years | 7 | 2.47% |
| 75 to 79 years | 1 | 0.35% |
| 80 to 84 years | 0 | 0.00% |
| 85 years and over | 0 | 0.00% |
Male Population in St. Mary's
*Base on 2010 Data
| Male population | 160 | 56.54% |
| Under 5 years | 8 | 2.83% |
| 5 to 9 years | 12 | 4.24% |
| 10 to 14 years | 8 | 2.83% |
| 15 to 19 years | 10 | 3.53% |
| 20 to 24 years | 1 | 0.35% |
| 25 to 29 years | 5 | 1.77% |
| 30 to 34 years | 15 | 5.30% |
| 35 to 39 years | 18 | 6.36% |
| 40 to 44 years | 17 | 6.01% |
| 45 to 49 years | 16 | 5.65% |
| 50 to 54 years | 20 | 7.07% |
| 55 to 59 years | 16 | 5.65% |
| 60 to 64 years | 5 | 1.77% |
| 65 to 69 years | 4 | 1.41% |
| 70 to 74 years | 5 | 1.77% |
| 75 to 79 years | 0 | 0.00% |
| 80 to 84 years | 0 | 0.00% |
| 85 years and over | 0 | 0.00% |
Female Population in St. Mary's
*Base on 2010 Data
| Female population | 123 | 43.46% |
| Under 5 years | 11 | 3.89% |
| 5 to 9 years | 5 | 1.77% |
| 10 to 14 years | 7 | 2.47% |
| 15 to 19 years | 3 | 1.06% |
| 20 to 24 years | 1 | 0.35% |
| 25 to 29 years | 5 | 1.77% |
| 30 to 34 years | 5 | 1.77% |
| 35 to 39 years | 20 | 7.07% |
| 40 to 44 years | 13 | 4.59% |
| 45 to 49 years | 15 | 5.30% |
| 50 to 54 years | 10 | 3.53% |
| 55 to 59 years | 11 | 3.89% |
| 60 to 64 years | 9 | 3.18% |
| 65 to 69 years | 5 | 1.77% |
| 70 to 74 years | 2 | 0.71% |
| 75 to 79 years | 1 | 0.35% |
| 80 to 84 years | 0 | 0.00% |
| 85 years and over | 0 | 0.00% |
Median Age in St. Mary's
*Base on 2010 Data
| Both | 41.30% | |
| Male | 40.60% | |
| Female | 42.80% |
Race in St. Mary's
*Base on 2010 Data
| Total | 283 | 100.00% |
| Population of one race | 280 | 98.94% |
| White | 276 | 97.53% |
| Black or African American | 1 | 0.35% |
| American Indian and Alaska Native | 1 | 0.35% |
| Asian | 1 | 0.35% |
| Asian Indian | 0 | 0.00% |
| Chinese | 0 | 0.00% |
| Filipino | 1 | 0.35% |
| Japanese | 0 | 0.00% |
| Korean | 0 | 0.00% |
| Vietnamese | 0 | 0.00% |
| Other Asian | 0 | 0.00% |
| Native Hawaiian and Other Pacific Islander | 0 | 0.00% |
| Native Hawaiian | 0 | 0.00% |
| Guamanian or Chamorro | 0 | 0.00% |
| Samoan | 0 | 0.00% |
| Other Pacific Islander | 0 | 0.00% |
| Some Other Race | 1 | 0.35% |
| Population of Two or More Races | 3 | 1.06% |
| White; American Indian and Alaska Native | 1 | 0.35% |
| White; Asian | 1 | 0.35% |
| White; Black or African American | 1 | 0.35% |
| White; Some Other Race | 0 | 0.00% |
The Population 16 Years in St. Mary's
*Base on 2010 Data
| Total | 231 | 100.00% |
| Male | 131 | 56.71% |
| Female | 100 | 43.29% |
The Population 18 Years in St. Mary's
*Base on 2010 Data
| Total | 223 | 100.00% |
| Male | 125 | 56.05% |
| Female | 98 | 43.95% |
The Population 21 Years in St. Mary's
*Base on 2010 Data
| Total | 219 | 100.00% |
| Male | 122 | 55.71% |
| Female | 97 | 44.29% |
The Population 62 Years in St. Mary's
*Base on 2010 Data
| Total | 24 | 100.00% |
| Male | 11 | 45.83% |
| Female | 13 | 54.17% |
The Population 65 Years in St. Mary's
*Base on 2010 Data
| Total | 17 | 100.00% |
| Male | 9 | 52.94% |
| Female | 8 | 47.06% |
Race (total races tallied) in St. Mary's
*Base on 2010 Data
| White alone or in combination with one or more other races | 279 | 97.55% |
| Black or African American alone or in combination with one or more other races | 2 | 0.70% |
| American Indian and Alaska Native alone or in combination with one or more other races | 2 | 0.70% |
| Asian alone or in combination with one or more other races | 2 | 0.70% |
| Native Hawaiian and Other Pacific Islander alone or in combination with one or more other races | 0 | 0.00% |
| Some Other Race alone or in combination with one or more other races | 1 | 0.35% |
Hispanic or Latino by Specific Origin in St. Mary's
*Base on 2010 Data
| Total | 283 | 100.00% |
| Hispanic or Latino (of any race) | 12 | 4.24% |
| Mexican | 11 | 3.89% |
| Puerto Rican | 1 | 0.35% |
| Cuban | 0 | 0.00% |
| Other Hispanic or Latino | 0 | 0.00% |
| Not Hispanic or Latino | 271 | 95.76% |
Hispanic or Latino and Race in St. Mary's
*Base on 2010 Data
| Total | 283 | 100.00% |
| Hispanic or Latino | 12 | 4.24% |
| White alone | 10 | 3.53% |
| Black or African American alone | 0 | 0.00% |
| American Indian and Alaska Native alone | 0 | 0.00% |
| Asian alone | 0 | 0.00% |
| Native Hawaiian and Other Pacific Islander alone | 0 | 0.00% |
| Some Other Race alone | 1 | 0.35% |
| Two or More Races | 1 | 0.35% |
| Not Hispanic or Latino | 271 | 95.76% |
| White alone | 266 | 93.99% |
| Black or African American alone | 1 | 0.35% |
| American Indian and Alaska Native alone | 1 | 0.35% |
| Asian alone | 1 | 0.35% |
| Native Hawaiian and Other Pacific Islander alone | 0 | 0.00% |
| Some Other Race alone | 0 | 0.00% |
| Two or More Races | 2 | 0.71% |
Relationship in St. Mary's
*Base on 2010 Data
| Total | 283 | 100.00% |
| In households | 283 | 100.00% |
| Householder | 139 | 49.12% |
| Spouse | 64 | 22.61% |
| Child | 65 | 22.97% |
| Own child under 18 years | 58 | 20.49% |
| Other relatives | 2 | 0.71% |
| Under 18 years | 0 | 0.00% |
| 65 years and over | 0 | 0.00% |
| Nonrelatives | 13 | 4.59% |
| Under 18 years | 2 | 0.71% |
| 65 years and over | 0 | 0.00% |
| Unmarried partner | 9 | 3.18% |
| In group quarters | 0 | 0.00% |
| Institutionalized population | 0 | 0.00% |
| Male | 0 | 0.00% |
| Female | 0 | 0.00% |
| Noninstitutionalized population | 0 | 0.00% |
| Male | 0 | 0.00% |
| Female | 0 | 0.00% |
Households by Type in St. Mary's
*Base on 2010 Data
| Subject | Number | Percent |
|---|---|---|
| Total | 139 | 100.00% |
| Family households (families) | 75 | 53.96% |
| With own children under 18 years | 33 | 23.74% |
| Husband-wife family | 64 | 46.04% |
| With own children under 18 years | 23 | 16.55% |
| Male householder, no wife present | 4 | 2.88% |
| With own children under 18 years | 4 | 2.88% |
| Female householder, no husband present | 7 | 5.04% |
| With own children under 18 years | 6 | 4.32% |
| Nonfamily households | 64 | 46.04% |
| Householder living alone | 56 | 40.29% |
| Male | 41 | 29.50% |
| 65 years and over | 4 | 2.88% |
| Female | 15 | 10.79% |
| 65 years and over | 3 | 2.16% |
Households with individuals under 18 years in St. Mary's
*Base on 2010 Data
| Total | 35 | 25.18% |
Households with individuals under 65 years in St. Mary's
*Base on 2010 Data
| Total | 15 | 10.79% |
Average Household Size in St. Mary's
*Base on 2010 Data
| Average household size | 2 | % |
Average Family Size in St. Mary's
*Base on 2010 Data
| Average family size | 3 | % |
Housing Occupancy(Total housing units) in St. Mary's
*Base on 2010 Data
| Total | 310 | 100.00% |
| Occupied housing units | 139 | 44.84% |
| Vacant housing units | 171 | 55.16% |
| For rent | 6 | 1.94% |
| Rented, not occupied | 1 | 0.32% |
| For sale only | 7 | 2.26% |
| Sold, not occupied | 2 | 0.65% |
| For seasonal, recreational, or occasional use | 150 | 48.39% |
| All other vacants | 5 | 1.61% |
Homeowner Vacancy Rate in St. Mary's
*Base on 2010 Data
| Homeowner vacancy rate (percent) | 5.70% |
Rental Vacancy Rate in St. Mary's
*Base on 2010 Data
| Rental vacancy rate (percent) | 18.80% |
Housing Tenure(Occupied housing units) in St. Mary's
*Base on 2010 Data
| Total | 139 | 100.00% |
| Owner-occupied housing units | 114 | 82.01% |
| Renter-occupied housing units | 25 | 17.99% |
Population in Occupied Housing Units by Tenure(Population in occupied housing units) in St. Mary's
*Base on 2010 Data
| Owner-occupied housing units | 237 | 83.75% |
| Renter-occupied housing units | 46 | 16.25% |
Average Household Size of Occupied Housing Units by Tenure in St. Mary's
*Base on 2010 Data
| Owner occupied | 2 | % |
| Renter occupied | 2 | % |