Population Demographics for St Mary's County, Maryland in 2019, 2018



Other Counties and Cities in Maryland


Population Demographics by Race

RacePopulation% of Total
Total Population105,151100
White82,63678
Black or African American15,03014
Hispanic or Latino3,9723
Two or More Races3,3383
Asian2,5962
Some Other Race1,0541
American Indian424Below 1%
Three or more races284Below 1%

Population Demographics by Race and gender.

MaleFemaleTotal
Total Population52,32152,830105,151
White41,47341,16382,636
Black or African American7,3187,71215,030
Hispanic or Latino2,0241,9483,972
Two or More Races1,6201,7183,338
Asian1,0901,5062,596
Some Other Race5724821,054
American Indian214210424
Three or more races126158284

Relevant Related Information

Demographic population totals

Total population in St Mary's County

 
Total Population:105,151
Male Population:52,321
Female Population:52,830

Demographic median age by sex

Median age in St Mary's County

 
Both sexes36
Male35
Female36

Demographic sex by age for the population in households

Population in households in St Mary's County

 
Total Population:102,225
Male Population:50,682
Under 5 years:3,841
5 to 9 years:3,786
10 to 14 years:3,903
15 to 17 years:2,413
18 and 19 years:1,279
20 years:591
21 years:506
22 to 24 years:1,929
25 to 29 years:3,501
30 to 34 years:3,117
35 to 39 years:3,176
40 to 44 years:3,894
45 to 49 years:4,566
50 to 54 years:3,998
55 to 59 years:3,050
60 and 61 years:1,012
62 to 64 years:1,442
65 and 66 years:800
67 to 69 years:1,007
70 to 74 years:1,251
75 to 79 years:769
80 to 84 years:495
85 years and over:356
Female Population:51,543
Under 5 years:3,728
5 to 9 years:3,837
10 to 14 years:3,750
15 to 17 years:2,300
18 and 19 years:1,208
20 years:598
21 years:500
22 to 24 years:1,976
25 to 29 years:3,375
30 to 34 years:3,230
35 to 39 years:3,466
40 to 44 years:4,107
45 to 49 years:4,408
50 to 54 years:3,896
55 to 59 years:3,107
60 and 61 years:1,106
62 to 64 years:1,455
65 and 66 years:814
67 to 69 years:1,002
70 to 74 years:1,319
75 to 79 years:972
80 to 84 years:703
85 years and over:686

Demographic average population of home by age

Average household size in St Mary's County

 
Total:2
Under 18 years:0
18 years and over:1

Demographic household type

Number of occupied homes in St Mary's County

 
Total:37,604
Family led homes:27,084
Husband-wife family:20,870
Other family:6,214
Population of male led with no wife present:1,824
Population female led with no husband present:4,390
Population of Nonfamily homes:10,520
Population living alone:8,183
Population not living alone:2,337

Demographic population of homes with people under 18 years old by type

Total occupied homes in St Mary's County with people under 18 years old:

 
Total:37,604
Population of homes with one or more people under 18 years:14,464
Population of family homes:14,300
Husband-wife family:10,142
Under 6 years only:2,382
Under 6 years and 6 to 17 years:2,298
6 to 17 years only:5,462
Other family:4,158
Male householder, no wife present:1,156
Under 6 years only:304
Under 6 years and 6 to 17 years:229
6 to 17 years only:623
Female led with no husband present:3,002
Under 6 years only:677
Under 6 years and 6 to 17 years:611
6 to 17 years only:1,714
Nonfamily households:164
Male led households:132
Under 6 years only:20
Under 6 years and 6 to 17 years:13
6 to 17 years only:99
Female led householder:32
Under 6 years only:5
Under 6 years and 6 to 17 years:4
6 to 17 years only:23
Households with no people under 18 years:23,140
Family households:12,784
Husband-wife family:10,728
Other family:2,056
Male led with no wife present:668
Female led with no husband present:1,388
Nonfamily households:10,356
Male led householder:5,548
Female led householder:4,808

Demographic type of home by age of owner-renter

Total number led homes in St Mary's County, by type

 
Total Home Population:37,604
Population of Family homes:27,084
Population of 15 to 24 year olds:725
Population of 25 to 34 year olds:4,474
Population of 35 to 44 year olds:6,305
Population of 45 to 54 year olds:7,192
Population of 55 to 59 year olds:2,515
Population of 60 to 64 year olds:2,050
Population of 65 to 74 year olds:2,547
Population of 75 to 84 year olds:1,014
Population of 85 year olds and over:262
Population of Nonfamily Homes:10,520
Population of 15 to 24 year olds:761
Population of 25 to 34 year olds:1,723
Population of 35 to 44 year olds:1,270
Population of 45 to 54 year olds:2,228
Population of 55 to 59 year olds:983
Population of 60 to 64 year olds:892
Population of 65 to 74 year olds:1,258
Population of 75 to 84 year olds:933
Population of 85 year olds and over:472

Demographic population of homes with people 60 year olds and over

households in St Mary's County containing people over 60

 
Total Population:37,604
Population of homes with one or more people 60 years and over:10,751
1-person household:3,247
2-or-more-person household:7,504
Family households:7,123
Nonfamily households:381
Population of homes with no people 60 years and over:26,853
1-person household:4,936
2-or-more-person household:21,917
Family homes:19,961
Nonfamily homes:1,956

Demographic population of multigenerational homes

homes in St Mary's County with multiple generations.

 
Total Population:37,604
Home has three or more generations:1,650
Home does not have three or more generations:35,954

Demographic presence of unmarried partner of home owner-renter

Unmarried population in St Mary's County under 18 years old in homes

 
Total Population:27,551
Unmarried partner of home lead present:2,231
In family homes:2,079
Population of male led and male partner homes:58
Population of male led and female partner households:904
Population of female led and female partner households:105
Population of female led and male partner households:1,012
In nonfamily homes:152
Population of male led and male partner homes:0
Population of male led and female partner homes:139
Population of female led and female partner homes:5
Population of female led and male partner homes:8
No unmarried partner of home lead present:25,320
In family homes:25,219
Population of husband-wife family homes:19,830
Population of male lead with no wife present, family homes:1,038
Population of female lead with no husband present, family homes:4,351
In nonfamily homes:101

Demographic population in families by age

Population in families living in St Mary's County

 
Total Population:86,135
Population Under 18 years:27,097
Population 18 years and over:59,038

Demographic tenure of people in homes

How long in St Mary's County have lived in one place.

 
Total:37,604
Population of Owner occupied homes:26,966
Family home:20,948
Nonfamily homess:6,018
Male led home:3,110
Living alone:2,351
Not living alone:759
Female led home:2,908
Living alone:2,424
Not living alone:484
Population of Renter occupied homes:10,638
Family run homes:6,136
Husband-wife family:3,369
Other family:2,767
Male led with no wife present:658
Female led with no husband present:2,109
Nonfamily Homes:4,502
Male led homes:2,570
Male living alone:1,900
Male not living alone:670
Female led homes:1,932
Females living alone:1,508
Females not living alone:424