Frederick ZIP Codes — Frederick County, MD

There are 6 unique ZIP codes in Frederick, Maryland. Area code: 240/301.

ZIP codes

140.11

sq mi land

0.91

sq mi water

240/301

area code

Frederick, MD ZIP code map

About Frederick, MD

Frederick, Maryland, is a vibrant city steeped in history and community spirit. It serves as the county seat of Frederick County and is known for its charming downtown area filled with shops, restaurants, and historical landmarks. As one of the larger cities in Maryland, Frederick offers a unique blend of suburban and urban living.

Location & geography

Frederick is strategically located in west-central Maryland, approximately 50 miles from Washington, D.C. and 35 miles from Baltimore. The city's land area spans 140.09 square miles, with a small water area of 0.91 square miles. The surrounding terrain consists of rolling hills and scenic landscapes, making it an attractive place for outdoor activities.

Community & economy

The community in Frederick is characterized by its friendly atmosphere and strong sense of local identity. The city has a diverse economy with key industries including healthcare, education, and technology, providing residents with ample job opportunities. Daily life in Frederick is enriched by numerous community events, local festivals, and a thriving arts scene.

Transportation

Frederick is serviced by several major highways, including Interstate 70 and U.S. Route 15, facilitating easy access to nearby metropolitan areas. The nearest major airport is Baltimore/Washington International Airport, which is approximately 50 miles away. Public transportation options include local bus services that connect residents to various parts of the city and surrounding areas.

History

Frederick was founded in the late 18th century and has played a significant role throughout American history, particularly during the Civil War era. The city was known for its strategic location and became a vital supply center for Union troops. Notable events in Frederick's past include the establishment of several key industries that contributed to its growth and development.

Did you know?

One little-known fact about Frederick is that it is home to the famous 90-acre landscaped area known as Baker Park, which features a unique variety of recreational facilities. Additionally, the city boasts a rich cultural heritage, including a mix of historic architecture and modern development.

ZIP codes for Frederick, MD (6)

ZIP code	City	County	Map
21701	Frederick	Frederick	View map
21702	Frederick	Frederick	View map
21703	Frederick	Frederick	View map
21704	Frederick	Frederick	View map
21705	Frederick	Frederick	View map
21709	Frederick	Frederick	View map

Demographics & statistics

145,462

Population

37.6

Median age

$108,272

Median household income

$49,024

Per capita income

$411,150

Median home value

$1,811

Median monthly rent

69.2%

Home ownership

7.1%

Poverty rate

3.9%

Unemployment

39,739

Housing units

47.0%

Bachelor's or higher

Age distribution

Male Female

4,566

Under 5

4,708

4,701

5–9

4,847

4,908

10–14

5,059

4,317

15–19

4,450

4,254

20–24

4,386

10,170

25–34

10,484

10,829

35–44

11,164

9,503

45–54

9,797

4,366

55–59

4,502

4,056

60–64

4,181

5,878

65–74

6,059

2,771

75–84

2,856

1,305

85+

1,345

← Male

Female →

Age summary

Group	Count	%
Under 18	34,551	25.1%
18 and over	110,911	75.0%
65 and over	20,214	13.2%
Median age	37.6 years

Race & ethnicity

White 59.8%

Black or African American 13.1%

Two or more races 9.6%

Hispanic or Latino 8.3%

Asian 6%

Other race 2.8%

American Indian / Alaska Native 0.3%

Native Hawaiian / Pacific Islander 0.1%

Group	Count	%
White	94,862	59.8%
Black or African American	20,842	13.1%
Two or more races	15,212	9.6%
Hispanic or Latino	13,171	8.3%
Asian	9,538	6%
Other race	4,515	2.8%
American Indian / Alaska Native	413	0.3%
Native Hawaiian / Pacific Islander	80	0.1%

Household income

Under $10k 2.6%

$10k–$15k 2.5%

$15k–$25k 2.9%

$25k–$35k 4.0%

$35k–$50k 6.6%

$50k–$75k 12.9%

$75k–$100k 11.8%

$100k–$150k 21.7%

$150k–$200k 14.5%

$200k+ 20.7%

Range	% of households
Under $10k	2.6%
$10k–$15k	2.5%
$15k–$25k	2.9%
$25k–$35k	4.0%
$35k–$50k	6.6%
$50k–$75k	12.9%
$75k–$100k	11.8%
$100k–$150k	21.7%
$150k–$200k	14.5%
$200k+	20.7%
Median income	$108,272

Housing

Home values

Under $50k 1.3%

$50k–$100k 0.3%

$100k–$150k 0.8%

$150k–$200k 3.5%

$200k–$300k 19.6%

$300k–$500k 45.1%

$500k–$1M 27.6%

$1M+ 1.7%

Housing overview

Metric	Value
Median home value	$411,150
Median rent / month	$1,811
Owner occupied	69.2%
Renter occupied	30.8%
Vacant	4.1%
Single-family detached	43.3%
Large apartment buildings	6.7%
Mobile homes	0.7%
Median rooms	6.5
Avg household size (owned)	2.86

Year built

Era	%
2020 or later	1.6%
2010–2019	15.5%
2000–2009	21.8%
1990–1999	19.2%
1980–1989	14.5%
1970–1979	7.4%
1960–1969	5.9%
1950–1959	4.3%
1940–1949	1.8%
1939 or earlier	8.1%

Bedrooms

Size	% of units
No bedroom (studio)	2.0%
1 bedroom	7.2%
2 bedrooms	19.9%
3 bedrooms	36.4%
4 bedrooms	28.1%
5+ bedrooms	6.5%

Vehicles per household

Vehicles	% of households
No vehicle	5.0%
1 vehicle	29.5%
2 vehicles	41.0%
3 or more	24.5%

Heating fuel

Fuel type	%
Utility gas	46.2%
Electricity	43.6%
Propane / LP gas	2.6%
Fuel oil	6.1%
Wood	0.9%
Solar	0.3%
No fuel used	0.2%

Households & families

Household type	Count	%
Married-couple family	27,237	52.4%
Cohabiting couple	4,389	7.5%
Male householder, no spouse	9,165	16.1%
Female householder, no spouse	14,510	24.2%
Households with children under 18	20,258	40.2%
Households with seniors (65+)	14,888	26.3%
Average household size	2.70

Marital status

Status	Male	Female
Never married	34.7%	28.7%
Married	53.9%	49.4%
Separated	1.4%	1.7%
Widowed	1.9%	7.2%
Divorced	8.3%	13.0%

Education

Less than 9th grade 3.8%

Some HS, no diploma 3.4%

HS graduate 21.4%

Some college, no degree 16.8%

Associate's degree 7.8%

Bachelor's degree 25.7%

Graduate / professional 21.3%

Metric	%
HS diploma or higher	92.8%
Bachelor's or higher	47.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	2,334	6.1%
Kindergarten	1,861	4.8%
Elementary school	15,272	41.7%
High school	7,971	21.5%
College / grad school	9,992	26.0%

Employment

Industry of employment

Education & healthcare 21.0%

Professional & management 20.2%

Retail trade 10.7%

Public administration 8.5%

Construction 8.2%

Arts, food & hospitality 7.4%

Finance & real estate 7.1%

Manufacturing 5.1%

Other services 4.2%

Transportation & utilities 3.4%

Information 1.9%

Wholesale trade 1.7%

Agriculture & mining 0.6%

Occupation

Category	%
Management, business & arts	51.9%
Service	15.2%
Sales & office	18.0%
Natural resources & construction	7.6%
Production & transportation	7.4%

Employment type

Type	%
Private sector	76.1%
Government	19.2%
Self-employed	4.6%
Unpaid family workers	0.3%

Commute

Method	%
Drive alone	70.8%
Carpool	7.8%
Public transit	1.6%
Walk	1.6%
Other means	1.7%
Avg commute (minutes)	33.0

Poverty

All people 7.1%

Under 18 years 8.9%

18 and over 6.5%

Married-couple families 1.6%

Female-led households 19.2%

Income support

Source	% of households
Social Security	24.9%
Retirement income	21.6%
Supplemental Security	2.8%
Cash public assistance	2.2%
Food stamps / SNAP	7.7%

Health indicators

Condition	%
High blood pressure	29.2%
High cholesterol	32.4%
Heart disease	4.6%
Stroke	2.3%
Asthma	9.5%
Arthritis	19.9%
Kidney disease	2.3%
Pulmonary disease	4.6%
Cancer	5.8%

Behavior / access	%
Binge drinking	16.5%
No physical activity	19.3%
Less than 7 hrs sleep	31.9%
Fair or poor health	10.0%
Poor mental health	13.5%
Poor physical health	7.2%
No health insurance	10.2%
Visited doctor (checkup)	74.7%
Visited dentist	68.4%
Cholesterol screening	91.7%
Teeth loss	8.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	8,059	7.3%

Disability	%
Any disability	9.6%
Under 18	4.4%
18–64 years	7.6%
65 and over	29.3%

Health insurance coverage

Type	%
Private insurance	79.1%
Public insurance	27.3%
Uninsured under 19	2.8%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	136,188	93.5%
Spanish	9,941	7.4%
Other Indo-European	5,834	4.0%
Asian & Pacific Islander	1,554	1.2%
Other languages	2,195	2.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	120,794	82.6%
Born in same state	118,314	80.9%
Born in different state	64,886	44.5%
Foreign born	2,480	1.8%
Naturalized citizen	24,668	17.4%
Not a US citizen	13,526	56.8%

Ancestry

Ancestry	Count	%
Italian	17,842	12.3%
French	14,538	10%
Arab	5,967	4.1%
English	1,025	0.7%
Irish	947	0.7%

Ancestry	Count	%
Polish	623	0.4%
Norwegian	422	0.3%
German	412	0.3%
Dutch	193	0.1%

Technology access

Metric	% of households
Computer access	37.1%
Internet access	96.1%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What ZIP codes does Frederick, MD have?

Frederick, MD has 5 ZIP codes: 21701, 21702, 21703, 21704, and 21709. Each ZIP code serves a distinct delivery area within the city and surrounding region.