Zip code 21036: Dayton, Maryland

Q: What city is zip code 21036?

21036 is assigned to Dayton, Maryland. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 21036 in?

21036 is in Howard County, Maryland.

Q: What is the population of 21036?

About 2,569 people live in 21036, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 21036?

The median household income in 21036 is $218,036.

Q: What zip codes are near 21036?

The closest zip codes to 21036 are 21737, 21029, 21738, 20833, 21041.

Residential delivery areaHoward CountyEastern Time

Population

2,569

Median household income

$218K

U.S. $81K

Median home value

$881K

U.S. $333K

Median rent

—

U.S. $1,413

Median age

48.8

U.S. 38.9

Land area

6.3 sq mi

411 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 21036

21036 is a small-town zip code in Dayton, Maryland (Howard County), covering 6.3 sq mi of land. About 2,569 people live here, or 411 per square mile. The median resident is 48.8 years old, compared with 38.9 nationally.

The median household earns $218,036 a year, about 2.7× the national median of $80,734. 2.2% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $881,300, or 4.0 years of median household income (U.S.: 4.1 years), which makes homes about as affordable as the national average for local earners. 99% of occupied homes are lived in by their owners.

71% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 32.6 minutes each way, and 36% of workers work from home. The most common jobs among working residents are in management; business and finance; and computer and math (tech). 18% of them are self-employed (U.S.: 10%).

How 21036 compares

Sorted from highest to lowest national percentile

Median household income$218,036
99th
StrengthU.S. $80,734 · MD $103,67819th of 414 in MD
Homeownership rate99.3%
99th
StrengthU.S. 65.2% · MD 67.6%33rd of 441 in MD
Broadband access99.1%
99th
StrengthU.S. 91% · MD 92.4%49th of 441 in MD
Median earnings per worker$119,766
99th
StrengthU.S. $49,666 · MD $61,20019th of 443 in MD
Work from home35.9%
98th
U.S. 15.1% · MD 19.3%22nd of 444 in MD
Per capita income$88,079
97th
StrengthU.S. $44,673 · MD $52,97925th of 446 in MD
Tech workers11.3%
97th
U.S. 3.8% · MD 6.4%42nd of 444 in MD
Bachelor's degree or higher71.3%
96th
StrengthU.S. 35.7% · MD 43.4%32nd of 445 in MD
Government workers26.3%
96th
U.S. 14.5% · MD 22.5%122nd of 444 in MD
Self-employed workers17.7%
95th
U.S. 10% · MD 8.7%53rd of 444 in MD
Median age48.8
94th
U.S. 38.9 · MD 39.489th of 446 in MD
Median home value$881,300
93rd
U.S. $332,700 · MD $419,90020th of 421 in MD
Residents 65 and older25.2%
92nd
U.S. 17.2% · MD 16.7%79th of 446 in MD
Average commute32.6 min
85th
WeaknessU.S. 26.4 min · MD 31.1 min176th of 421 in MD
Unemployment rate7.5%
84th
WeaknessU.S. 5.2% · MD 4.9%63rd of 444 in MD
Residents under 1821.7%
46th
U.S. 22% · MD 22.2%225th of 446 in MD
Foreign-born residents8%
43rd
U.S. 14.1% · MD 16.6%189th of 446 in MD
Diversity index38.5
34th
U.S. 61.4 · MD 67.7246th of 446 in MD
Population density411/sq mi
30th
U.S. 95/sq mi · MD 639/sq mi224th of 446 in MD
Veterans2.9%
14th
U.S. 6.2% · MD 6.8%404th of 446 in MD
Income inequality (Gini)0.389
14th
StrengthU.S. 0.483 · MD 0.456265th of 438 in MD
Housing vacancy2.5%
7th
U.S. 10.1% · MD 7.7%342nd of 441 in MD
Healthcare workers5.8%
7th
U.S. 9.7% · MD 9%328th of 444 in MD
Population2,569
4th
U.S. 334,922,499 · MD 6,206,011291st of 446 in MD
Poverty rate2.2%
1st
StrengthU.S. 12.5% · MD 9.4%382nd of 441 in MD
Uninsured rate0.6%
1st
StrengthU.S. 8.4% · MD 6.3%389th of 444 in MD

Measure	21036	Howard	MD	U.S.	National percentile	Rank in MD
Median household incomeStrength	$218,036	$149,763	$103,678	$80,734	99th	19th of 414
Homeownership rateStrength	99.3%	71.5%	67.6%	65.2%	99th	33rd of 441
Broadband accessStrength	99.1%	96.6%	92.4%	91%	99th	49th of 441
Median earnings per workerStrength	$119,766	$83,801	$61,200	$49,666	99th	19th of 443
Work from home	35.9%	26%	19.3%	15.1%	98th	22nd of 444
Per capita incomeStrength	$88,079	$67,501	$52,979	$44,673	97th	25th of 446
Tech workers	11.3%	11.9%	6.4%	3.8%	97th	42nd of 444
Bachelor's degree or higherStrength	71.3%	64.5%	43.4%	35.7%	96th	32nd of 445
Government workers	26.3%	22.9%	22.5%	14.5%	96th	122nd of 444
Self-employed workers	17.7%	9.2%	8.7%	10%	95th	53rd of 444
Median age	48.8	39.8	39.4	38.9	94th	89th of 446
Median home value	$881,300	$597,900	$419,900	$332,700	93rd	20th of 421
Residents 65 and older	25.2%	15.2%	16.7%	17.2%	92nd	79th of 446
Average commuteWeakness	32.6 min	28.5 min	31.1 min	26.4 min	85th	176th of 421
Unemployment rateWeakness	7.5%	3.5%	4.9%	5.2%	84th	63rd of 444
Residents under 18	21.7%	23.8%	22.2%	22%	46th	225th of 446
Foreign-born residents	8%	22.8%	16.6%	14.1%	43rd	189th of 446
Diversity index	38.5	70.3	67.7	61.4	34th	246th of 446
Population density	411/sq mi	1,340/sq mi	639/sq mi	95/sq mi	30th	224th of 446
Veterans	2.9%	6%	6.8%	6.2%	14th	404th of 446
Income inequality (Gini)Strength	0.389	0.414	0.456	0.483	14th	265th of 438
Housing vacancy	2.5%	3.4%	7.7%	10.1%	7th	342nd of 441
Healthcare workers	5.8%	9.7%	9%	9.7%	7th	328th of 444
Population	2,569	336,328	6,206,011	334,922,499	4th	291st of 446
Poverty rateStrength	2.2%	5.2%	9.4%	12.5%	1st	382nd of 441
Uninsured rateStrength	0.6%	4.2%	6.3%	8.4%	1st	389th of 444

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Under 5

18%

5–17

18–24

25–34

11%

35–44

15%

45–54

13%

55–64

13%

65–74

12%

75+

Median age

48.8

Under 18

21.7%

65 and over

25.2%

Race and ethnicity

White78%
Black5%
Hispanic7%
Asian6%
Native American0%
Pacific Islander0%
Other0.5%
Multiracial3%

Diversity index

38.5

U.S. 61.4

Foreign-born

U.S. 14.1%

Born in state

46.6%

Language spoken at home (households)

English only

85%

Spanish

Other Indo-European

Asian / Pacific

Other

0.8%

Households

Households: 882
Average household size: 2.9
Family households: 75.6%
Married couples: 70.2%
Living alone: 21.1%
Veterans (of adults): 2.9%
Male / female: 52% / 48%

Income and poverty

Household income distribution

<$25k

$25–50k

$50–75k

10%

$75–100k

$100–150k

14%

$150–200k

$200k+

57%

Median household income

21036

$218,036

Howard Co.

$149,763

Maryland

$103,678

United States

$80,734

Per capita income

$88,079

U.S. $44,673

Poverty rate

2.2%

U.S. 12.5%

Households earning $150K+

64.7%

U.S. 23%

Income inequality (Gini)

0.389

U.S. 0.483

Housing

Median home value

21036

$881,300

Howard Co.

$597,900

Maryland

$419,900

United States

$332,700

Median gross rent

21036

—

Howard Co.

$2,099

Maryland

$1,705

United States

$1,413

Types of housing

Single-family

99%

2–4 units

5–19 units

20+ units

0.7%

Mobile home

Boat, RV, van

Housing units: 905
Owner-occupied: 99.3%
Vacant: 2.5%
Median year built: 1984
Median rooms: 9 or more
Renters paying 30%+ of income: —
Renters paying 50%+ of income: —
Home value to income: 4.0× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

62%

Carpooled

0.5%

Transit

Walked

0.5%

Bicycle

Worked from home

36%

Other

0.7%

Commute time (one way)

<10 min

10–19

10%

20–29

27%

30–44

26%

45–59

21%

60+

Average commute

32.6 min

U.S. 26.4 min

Unemployment

7.5%

U.S. 5.2%

In labor force

60.7%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Management

19%

Business and finance

12%

Computer and math

11%

Education

Sales

Office and admin

Engineering and science

Healthcare

Construction and repair

Transportation and moving

Legal and social services

Cleaning and personal care

Arts, media and sports

Food service

Police and fire

0.7%

Production

0.6%

Farming, fishing and forestry

Industries

Professional and technical services

22%

Finance, insurance and real estate

15%

Education

11%

Public administration

10%

Construction

Health care and social assistance

Retail

Other services

Manufacturing

Admin, support and management

Wholesale

Restaurants and hotels

Transportation, warehousing and utilities

Information

Arts and recreation

Agriculture and mining

Median earnings per worker

$119,766

U.S. $49,666

Self-employed

17.7%

U.S. 10%

Government workers

26.3%

U.S. 14.5%

Nonprofit workers

6.7%

U.S. 8.8%

Median earnings by type of work

Type of work	21036	U.S.
Management, business, science and arts	$136,042	$74,888
Service	$41,579	$26,804
Sales and office	$116,944	$40,476
Construction and maintenance	$150,893	$49,199
Production and transportation	$46,429	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

Some college

13%

Associate's

Bachelor's

39%

Graduate

33%

High school graduate or higher: 96.6%
Bachelor's degree or higher: 71.3%
Graduate or professional degree: 32.7%
Households with broadband: 99.1%
Cable, fiber or DSL: 95.9%
No internet access: 0.9%
Without health insurance: 0.6%
Limited-English households: 1.6%

Geography

City (USPS): Dayton
State: Maryland
County: Howard County
Center point: 39.2346° N, 77.0067° W
Land area: 6.3 sq mi
Water area: 0.4 sq mi
Time zone: Eastern Time (UTC-5, UTC-4 in summer)
Zip type: Residential delivery area

Zip codes near 21036

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
21737	Glenelg, MD	1.4 mi	2,474	$250,000+	$996,400
21029	Clarksville, MD	2.9 mi	13,607	$243,542	$912,100
21738	Glenwood, MD	3.3 mi	3,696	$250,000+	$914,300
20833	Brookeville, MD	3.4 mi	7,860	$204,375	$797,100
21041	Ellicott City, MD · PO box	3.5 mi	—	—	—
21150	Simpsonville, MD · PO box	3.5 mi	—	—	—
20862	Brinklow, MD	3.8 mi	430	$189,667	$810,600
20777	Highland, MD	4.6 mi	3,221	$226,146	$861,900
21794	West Friendship, MD	4.9 mi	2,192	$231,466	$999,400
20860	Sandy Spring, MD	6 mi	2,035	—	$654,200
20861	Ashton, MD	6 mi	2,890	$163,438	$852,700
20830	Olney, MD · PO box	6.4 mi	—	—	—

Zip codes like 21036 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 21036

What city is zip code 21036?

21036 is assigned to Dayton, Maryland. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 21036 in?

21036 is in Howard County, Maryland.

What is the population of 21036?

About 2,569 people live in 21036, according to the Census Bureau's American Community Survey.

What time zone is 21036 in?

21036 is in Eastern Time.

What is the median household income in 21036?

The median household income in 21036 is $218,036.

What zip codes are near 21036?

The closest zip codes to 21036 are 21737, 21029, 21738, 20833, 21041.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 21036, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.