Mount Airy, MD

Town in MD, US

By Neilsberg Research

Last updated May 1, 2026

Key Indicators

A quick look at key numbers

Population

9,805

Source: U.S. Census Bureau American Community Survey (ACS) 2020-2024 5-Year Estimates

Median Age

37.8

years ∙ half population younger than 37.8, half older

Diversity Index

27.8%

chance two random people differ in race and ethnicity

Nativity

5.8%

foreign-born population

94.2%Native

5.8% Foreign-born

Geographic Context

Location, size, and surroundings

About

Mount Airy is a town within Carroll and Frederick counties, Maryland, United States.

Location

Town in MD, US

Co-ordinates

DEC39.374693° N, 77.153807° W

DMS39° 22′ 28.89″ N, 77° 09′ 13.71″ W

Population Density & area

2,368/sq mi (915.5/km²)

Total Area

4.15 sq mi (10.74 km²)

Land Area

4.14 sq mi (10.71 km²) · 99.72%

Water Area

0.01 sq mi (0.03 km²) · 0.28%

Demographics & Living

Who lives here, how households are formed, and community composition

Population Composition

Key characteristics of the population

Sex Distribution

48.6% male

Male 48.6%

Female 51.4%

males per 100 females

Mount Airy 94.5

Maryland 94.8

United States 98

Nativity

5.8%

foreign-born population

94.2%Native

5.8% Foreign-born

% Foreign-born

Mount Airy 5.8%

Maryland 16.6%

United States 14.1%

Age Distribution

How the population is spread across age groups

Median Age

37.8

years ∙ half population younger than 37.8, half older

Mount Airy

37.8

Maryland

39.4

United States

38.9

Dependency ratio

66.1

dependents per 100 working-age adults

Mount Airy 66.1

Maryland 63.5

United States 64.4

AGE DISTRIBUTION

Distribution of age group

Median age

	Mount Airy	Maryland	United States
Age Group
Children (Under 18)	27.6%	22.2%	22%
Working age (18-64)	60.2%	61.1%	60.8%
Senior (65+)	12.2%	16.7%	17.2%
Dependency ratio
Total dependency ratio	66.1	63.5	64.4
Child dependency ratio	45.8	36.3	36.1
Old-age dependency ratio	20.3	27.2	28.3

Racial & Ethnic Composition

Racial and ethnic makeup and how it compares

Race & Ethnicity

White

84.5%

Black

2.6%

Asian

0.9%

Hispanic

7.6%

Other

4.4%

Note: White, Black, and Asian refer to individuals belonging to a single race and not of Hispanic origin. Hispanics may be of any race.

Diversity Index

27.8%

chance two random people differ in race and ethnicity

Mount Airy 27.8%

Maryland 67.7%

United States 61.4%

Note: The Diversity Index (DI), based on the Blau Index, measures the probability that two randomly selected individuals differ in race and ethnicity. Values range from 0 (no diversity) to 1 (high diversity) and are shown as percentages.

RACIAL & ETHNIC COMPOSITION

Race & Ethnicity

Percentage of Mount Airy population

Racial and ethnic composition — Mount Airy vs Maryland vs United States. Source: ACS 2020-2024 5-Year Estimates.
	Mount Airy	Maryland	United States
Hispanic or Latino	7.6%	12.5%	19.3%
Mexican	1.5%	2%	11.3%
Puerto Rican	0.7%	1.1%	1.8%
Cuban	0.1%	0.3%	0.8%
Other Hispanic / Latino	5.4%	9.1%	5.5%
Not Hispanic or Latino	92.4%	87.5%	80.7%
One race	88.6%	82.9%	76.4%
White	84.5%	46.6%	57.4%
Black or African American	2.6%	28.9%	11.9%
American Indian and Alaska Native	0%	0.1%	0.5%
Asian	0.9%	6.5%	5.9%
Native Hawaiian and Other Pacific Islander	0%	0%	0.2%
Some Other Race	0.7%	0.7%	0.6%
Two or more races (Multiracial)	3.8%	4.6%	4.3%

Household & Families Composition

Household size, type, and family structure

Household structure

79.6% family

Family 79.6%

Non family 20.4%

% family households

Mount Airy 79.6%

Maryland 65%

United States 64.2%

Average household size

2.96

persons per household

Mount Airy

2.96

Maryland

2.57

United States

2.53

Household & Family COMPOSITION

Households

Percentage of Mount Airy population

	Mount Airy	Maryland	United States
Total households	3,300	2,362,928	129,227,496
Average houshold size	2.96	2.57	2.53
Family households	2,627	1,535,706	82,990,528
Average family size	3.34	3.19	3.14
Married couple family	2,239	1,090,871	60,637,388
Other families	388	444,835	22,353,140
Male householder	121	120,206	6,572,819
Female householder	267	324,629	15,780,321
Non-family households	673	827,222	46,236,968
One-person households	587	677,124	37,140,836
Male householder	138	282,192	16,871,444
Senior (65+) living alone	32	87,532	5,225,110
Female householder	449	394,932	20,269,392
Senior (65+) living alone	242	185,255	10,089,070
Other living arrangements	86	150,098	9,096,132

Housing Profile

Housing stock, ownership, rentals, and cost burdens

Total housing units

3,442

housing units

Mount Airy 3,442

Maryland 2,560,784

United States 143,775,355

Occupancy status

95.9% occupied

Occupied 95.9%

Vacant 4.1%

vacancy rate

Mount Airy 4.1%

Maryland 7.7%

United States 10.1%

Housing Characteristics

How the housing supply is structured and used

Types of Housing unit

97.5%

Single family houses

97.5%

Apartments in multi-unit structures

2.2%

Mobile homes

Boat, RV, van, etc

0.3%

Median Year Built

1995

Half of houses were built before 1995, and half after.

Historic ∙ 1939 or earlier

8.2%

Postwar & mid-century ∙ 1940 - 1969

2.8%

Late 20th century ∙ 1970 - 1999

50%

Modern ∙ 2000 or later

39.1%

Note: Median year built reflects occupied units only; distribution includes all units.

Housing Characteristics

Units, rooms & bedrooms

Physical characteristics of housing units

	Mount Airy	Maryland	United States
Rooms per unit
Median rooms	8	6.2	5.5
1–3 rooms	1.5%	12.3%	15.1%
4–6 rooms	32.4%	42.4%	51.6%
7+ rooms	66%	45.2%	33.4%
Bedrooms
No bedroom / studio	0.4%	2.1%	2.9%
1 bedroom	0.6%	10.3%	10.9%
2 bedrooms	11.7%	21.3%	25%
3 bedrooms	37%	35.8%	38.7%
4+ bedrooms	50.4%	30.5%	22.4%
At a glance
Median year built	1995	1980	1981
Total housing units	3,442	2,560,784	143,775,355

Occupancy Profile

Who is inside and how they use it

Homeownership

94.4% owners

Renter-occupied 5.6%

Owner-occupied 94.4%

homeownership rate

Mount Airy 94.4%

Maryland 67.6%

United States 65.2%

Average household size

2.94

Owner-occupied

3.16

Renter-occupied

owner-occupied average size

Mount Airy 2.94

Maryland 2.7

United States 2.64

Housing Characteristics

Occupied unit characteristics

Tenure, crowding, and utilities

	Mount Airy	Maryland	United States
Total occupied units	3,300	2,362,928	129,227,496
Year moved in
2020 or later	17.3%	23.2%	24.8%
2010 to 2019	36.8%	39%	39.6%
2000 to 2009	25.2%	17.1%	16.4%
1999 or earlier	20.7%	20.8%	19.1%
Occupants per room
1.00 or fewer	99%	97.5%	96.6%
1.01 to 1.50	0.7%	1.7%	2.2%
1.51 or more	0.3%	0.8%	1.2%
Vehicles availability
No vehicles	3.2%	8.8%	8.4%
1 vehicle	21.1%	33.5%	33.1%
2 vehicles	40%	35.8%	36.6%
3 or more vehicles	35.7%	21.9%	21.9%
House heating fuel used
Gas	46.2%	46.9%	51.4%
Electricity	46.6%	44.1%	41.3%
Solar	0%	0.4%	0.3%
Fuel oil, kerosene etc	5.7%	6.6%	3.9%
All other fuels	0.6%	1.6%	2%
No fuel used	0.9%	0.6%	1.2%
Selected characteristics
Lacking complete plumbing	0.3%	0.3%	0.4%
Lacking complete kitchen	0.4%	0.6%	0.8%
No telephone service available	1%	0.8%	0.9%

Housing Value

What owner-occupied units are worth

Median home value

$487,400

owner-occupied units

Median value(USD)

Mount Airy

$487,400

Maryland

$419,900

United States

$332,700

Housing Cost Burden

21.2%

of homeowners with a mortgage are cost-burdened

% Cost-Burdened Households

Owners with a mortgage

21.2%

Owners without a mortgage

20%

Renters

23.1%

Note: Households spending 30% or more of their income on housing costs are considered cost-burdened.

Financial characteristics

Property value and housing costs

Tenure, crowding, and utilities

	Mount Airy	Maryland	United States
Property value
Median Value	$487,400	$419,900	$332,700
Under $100,000	0.6%	5%	11.4%
$100,000 - $200,000	0%	7.5%	15.8%
$200,000 - $300,000	6.8%	14.8%	17.8%
$300,000 - $500,000	45.9%	37.1%	26.9%
$500,000 - $1,000,000	46.7%	29.7%	20.9%
$1,000,000 and more	0%	6%	7.1%
Owner-occupied households
With a mortgage	79.5%	71%	60.6%
Without a mortgage	20.5%	29%	39.4%
Median monthly owner costs
With a mortgage	$2,598	$2,347	$1,963
Without a mortgage	$666	$753	$638
Gross rent
Median rent	$1,854	$1,705	$1,413

Education Profile

How educated is the community and how education pays off

Adults with a college degree

54.6%

of adults 25+ with a bachelor's degree or higher

Mount Airy 54.6%

Maryland 43.4%

United States 35.7%

Adults without a high school diploma

3.2%

of adults (25+) without a high school diploma

Mount Airy 3.2%

Maryland 8.8%

United States 10.4%

School Enrollment

Who is enrolled in school and at what level

School enrollment

2,755

population (age 3+) enrolled in school

Nursery / Preschool

7.4%

K–12

68.9%

College / Undergraduate

16%

Graduate / Professional

7.8%

College-going rate (18-24 yr olds)

37.7%

of 18-24-year-olds in college or graduate school

Mount Airy

37.7%

Maryland

41.8%

United States

40.9%

Enrollment & school type

Enrollment levels, college-going rate, and public vs private school split

Population 3+ currently enrolled in a school

	Mount Airy	Maryland	United States
Total enrolled (age 3+)	2,755	1,533,098	80,089,790
Nursery / preschool	7.4%	5.7%	5.7%
K–12	68.9%	66.3%	67.6%
Kindergarten	6.4%	4.9%	5%
Elementary: Grades 1–4	28.9%	19.5%	19.8%
Elementary: Grades 5–8	18.5%	20.5%	21%
High School: Grades 9–12	15.1%	21.5%	21.7%
College or graduate school	23.7%	28%	26.7%
College, undergraduate	16%	20.4%	21%
Graduate, professional school	7.8%	7.6%	5.8%
College-going rate · 18-24 yr olds	37.7%	41.8%	40.9%
School type
Public school	81.4%	80%	82%
Private school	18.6%	20%	18%

Education Attainment by Level & Gender

What is the highest level of education completed among adults

Education attainment

6,452

population 25 years and over

Total adults (25+)

Less than 9th grade

1.5%

9th-12th, no diploma

1.7%

HS graduate

13.4%

Some college no degree

19.1%

Associates degree

9.7%

Bachelors degree

33.4%

Graduate or professional degree

21.3%

Attainment by gender

Male vs Female

Adults (25+) · Share within each education level

% male · % female

Less than 9th grade

68.4% · 31.6%

9th-12th, no diploma

58.7% · 41.3%

HS graduate

45.4% · 54.6%

Some college no degree

41.5% · 58.5%

Associates degree

55.7% · 44.3%

Bachelors degree

47.9% · 52.1%

Graduate or professional degree

43.4% · 56.6%

Educational Attainment Overview

Distribution and key education attainment rates for adults (25+)

Highest credential completed · adults 25+

	Mount Airy	Maryland	United States
Population (25+)	6,452	4,301,335	230,807,303
Less than 9th grade	1.5%	4%	4.7%
9th–12th, no diploma	1.7%	4.8%	5.7%
High school diploma or GED	13.4%	23.4%	26%
Some college, no degree	19.1%	17.4%	19.1%
Associate's degree	9.7%	6.8%	8.8%
Bachelor's degree or higher	54.6%	43.4%	35.7%
Bachelor's degree	33.4%	22.7%	21.6%
Graduate or professional	21.3%	20.8%	14.1%
High School or higher	96.8%	91.1%	89.6%

Earnings by education level

percentage as applicable

Median Earnings

$86,097

Median earnings for adults 25+, by level

Less than HS graduate

$51,250

HS graduate

$54,550

Some college or associates

$62,813

Bachelors degree

$108,385

Graduate or professional degree

$103,389

Poverty Rate

1.3%

for ages 25+, with bachelors degree or higher

Less than HS graduate

21.1%

HS graduate

Some college or associates

3.1%

Bachelors degree or higher

1.3%

Outcomes by Education Level

Earnings and poverty rates across education levels (25+)

Adults 25+

	Mount Airy	Maryland	United States
Median earnings
Population 25+, with earnings	$86,097	$65,293	$52,696
Less than high school graduate	$51,250	$35,487	$32,485
High school graduate (includes equivalency)	$54,550	$45,113	$40,153
Some college or associate's degree	$62,813	$54,823	$47,260
Bachelor's degree	$108,385	$80,465	$70,044
Graduate or professional degree	$103,389	$105,640	$90,720
Poverty rates
Less than high school graduate	21.1%	20.9%	24.2%
High school graduate (includes equivalency)	5%	12.6%	14.4%
Some college or associate's degree	3.1%	8.3%	9.8%
Bachelor's degree or higher	1.3%	3.5%	4.5%

Insights for Mount Airy, by topic

Income By year By race By age By gender

Population By year By race By age By gender

About Neilsberg Research

Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.

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