St. Mary, Missouri Population & 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

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).