St. Mary, MO Demographics

Statistic St. Mary Missouri National
Population 261 6,137,428 328,239,523
Population density (sq mi) 436 90 91
Median age 39.9 38.3 37.7
Male/Female ratio 0.8:1 1.0:1 1.0:1
Married (15yrs & older) 52% 57% 55%
Families w/ Kids under 18 38% 42% 43%
Speak English 100% 94% 79%
Speak Spanish 0% 3% 13%
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Demographics Quick Facts

  • The population density in St. Mary is 384% higher than Missouri
  • The median age in St. Mary is 4% higher than Missouri
  • In St. Mary 99.62% of the population is White
  • In St. Mary 0.00% of the population is Black
  • In St. Mary 0.00% of the population is Asian

Compare St. Mary, MO Demographics

      vs

      St. Mary racial demographics

      Race St. Mary Missouri National
      White 99.62% 82.53% 73.35%
      Black 0.00% 11.58% 12.63%
      Asian 0.00% 1.78% 5.22%
      American Indian 0.00% 0.42% 0.82%
      Native Hawaiian 0.00% 0.11% 0.18%
      Mixed race 0.38% 2.44% 3.06%
      Other race 0.00% 1.13% 4.75%
      In St. Mary, 1.1% of people are of Hispanic or Latino origin.
      Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.

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      Household income distribution

      Place of birth by citizenship

      St. Mary age breakdown

      Marital status

      Age of children in married couples

      Source: The St. Mary, MO demographics data displayed above is derived from the United States Census Bureau American Community Survey (ACS).
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