San Mar is a CDP located in Washington County Maryland. San Mar has a 2024 population of 348. San Mar is currently declining at a rate of -0.57% annually but its population has increased by 9.43% since the most recent census, which recorded a population of 318 in 2020.
The average household income in San Mar is $78,691 with a poverty rate of 18.44%. The median age in San Mar is 71.4 years: 65.1 years for males, and 79.4 years for females.
According to the most recent ACS, the racial composition of San Mar was:
Race | Population | Percentage (of total) |
|---|---|---|
| White | 328 | 92.92% |
| Black or African American | 21 | 5.95% |
| Two or more races | 4 | 1.13% |
| Native American | 0 | 0% |
| Asian | 0 | 0% |
| Native Hawaiian or Pacific Islander | 0 | 0% |
| Other race | 0 | 0% |
White
Black or African American
Two or more races
Native American
Asian
Native Hawaiian or Pacific Islander
Other race
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 113 | 1.98 | 100 | 0 |
| Non Family | 68 | 1.37 | 100 | 0 |
| Married | 45 | 2.91 | 100 | 0 |
| Male | 0 | 0 | 0 | 0 |
| Female | 0 | 0 | 0 | 0 |
2.91
Average Family Size
1.98
Average Household Size
100.0%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Education Attained | Count | Percentage |
|---|---|---|
| 9th to 12th Grade | 34 | 10.3% |
| Associates Degree | 16 | 4.85% |
| Bachelors Degree | 19 | 5.76% |
| Graduate Degree | 0 | 0% |
| High School Graduate | 221 | 66.97% |
| Less Than 9th Grade | 12 | 3.64% |
| Some College | 28 | 8.48% |
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 311 | 276 | 19 |
| Black | 10 | 4 | 0 |
| Hispanic | 9 | 4 | 0 |
| 2+ Races | 4 | 4 | 0 |
The highest rate of high school graduation is among 2+ races people with a rate of 100%.
The highest rate of bachelors degrees is among white people with a rate of 6.11%.
All
Male
Female
Name | Average | Male | Female |
|---|---|---|---|
| Bachelors Degree | $0 | $0 | $0 |
| Graduate Degree | $0 | $0 | $0 |
| High School Graduate | $44,297 | $43,438 | $0 |
| Less Than 9th Grade | $0 | $0 | $0 |
| Overall | $43,906 | $43,828 | $0 |
| Some College | $0 | $0 | $0 |
$43,906
Average Earnings
$43,828
Average Male
$0
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
98.58% of San Mar residents speak only English, while 1.42% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.42% of the population.
rate
Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 229 | 30 | 13.1% |
| Black | 15 | 15 | 100% |
18.44%
Overall Poverty Rate
6.25%
Male Poverty Rate
36%
Female Poverty Rate
The race most likely to be in poverty in San Mar is Black, with 100% below the poverty level.
The race least likely to be in poverty in San Mar is White, with 13.1% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 0%. Among those working part-time, it was 27.08%, and for those that did not work, the poverty rate was 25.81%.
rate
Rate | Poverty |
|---|---|
| Some College | 61.54% |
| High School | 14.79% |
| Less Than 9th Grade | 11.11% |
| Bachelors or Greater | 0% |
rate
Rate | Poverty |
|---|---|
| Female Unemployed | 57.14% |
| Male Unemployed | 53.33% |
| Male Employed | 1.39% |
| Female Employed | 0% |
Households
Families
MarriedFamilies
NonFamilies
Name | Median | Mean |
|---|---|---|
| Families | $130,054 | $117,707 |
| Households | $85,583 | $78,691 |
| Married Families | $130,054 | $-999,999,999 |
| Non Families | $53,021 | $52,872 |
mean
median
Married
Widowed
Divorced
Separated
NeverMarried
33.7%
Overall Marriage Rate
35.6%
Male Marriage Rate
31.8%
Female Marriage Rate
male
female
The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 55-64.
Married
Widowed
Divorced
Separated
NeverMarried
Second Gulf War
First Gulf War
Vietnam
Korea
World War II
21
Number of Veterans
21
Male Veterans
0
Female Veterans
War | Veterans |
|---|---|
| Second Gulf War | 8 |
| Vietnam | 7 |
| First Gulf War | 0 |
| Korea | 0 |
| World War II | 0 |
count
Age Group | Veterans |
|---|---|
| 18 to 34 | 8 |
| 75+ | 7 |
| 65 to 74 | 6 |
| 35 to 54 | 0 |
| 55 to 64 | 0 |
count
Name | Veterans | % of Total |
|---|---|---|
| White | 13 | 4.02% |
| Black | 8 | 42.11% |
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
100%
Veteran Poverty Rate
0%
Veteran Disability Rate
LaborForceParticipation
35.6%
Labor Force Participation
27.3%
Employment Rate
23.4%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
45.33%
Born in San Mar
100%
Native Born
0%
Foreign Born
0%
Non Citizen
0%
Naturalized
100% of San Mar residents were born in the United States, with 45.33% having been born in Maryland. 0% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.
Year | Population | Growth | Change |
|---|---|---|---|
| 2024 | 348 | -2 | -0.57% |
| 2023 | 350 | -3 | -0.85% |
| 2022 | 353 | 35 | 11.01% |
| 2021 | 318 | 0 | 0% |
| 2020 | 318 | -15 | -4.5% |
| 2019 | 333 | 165 | 98.21% |
| 2018 | 168 | -20 | -10.64% |
| 2017 | 188 | -15 | -7.39% |
| 2016 | 203 | -16 | -7.31% |
| 2015 | 219 | 34 | 18.38% |
| 2014 | 185 | -67 | -26.59% |
| 2013 | 252 | -96 | -27.59% |
| 2012 | 348 | 27 | 8.41% |
| 2011 | 321 | -63 | -16.41% |
| 2010 | 384 | 0 | 0% |