New Windsor ZIP Code List — Carroll County, MD

There is one unique ZIP code in New Windsor, Maryland and it is 21776. Area code: 443/410/667.

ZIP codes

35.45

sq mi land

0.12

sq mi water

443/410/667

area code

New Windsor, MD ZIP code map

About New Windsor, MD

New Windsor, MD is a quaint and charming town located in Carroll County, Maryland. The town is renowned for its picturesque landscapes and friendly small-town atmosphere. With a single ZIP code, 21776, New Windsor offers a unique sense of community and belonging to its residents.

Location & geography

Nestled in Carroll County, New Windsor is located approximately 30 miles northwest of Baltimore and about 50 miles northeast of Washington, D.C. The town covers a land area of 35.45 square miles, with a small water area of 0.12 square miles contributing to its natural beauty. The gently rolling terrain adds to the rural charm, making it an appealing destination for those seeking a peaceful lifestyle.

Community & economy

New Windsor is characterized by its tight-knit community and small-town charm, where residents often gather for local events and activities. The economy is primarily based on agriculture and small businesses, fostering a unique local culture that values tradition and neighborly support. Daily life in New Windsor reflects a serene pace, with opportunities for outdoor recreation and family-oriented gatherings.

Transportation

New Windsor is accessible via several main roads, including Route 31 and Route 75, which provide convenient connections to larger highways. For air travel, the nearest major airport is Baltimore/Washington International Thurgood Marshall Airport, located about 35 miles southeast. Public transit options are limited, encouraging residents to rely on personal vehicles for commuting.

History

Founded in the early 19th century, New Windsor has retained much of its historical character and charm. The town historically thrived on agriculture and small manufacturing, contributing to its development and growth over the decades. Notable events, including community fairs and festivals, reflect the town's longstanding traditions and cultural heritage.

Did you know?

A little-known fact about New Windsor is that it has a rich history tied to the Maryland and Pennsylvania Railroad, which played a significant role in the town's development. Additionally, the town boasts several historical landmarks, including old churches and quaint homes that date back to the 1800s.

ZIP codes for New Windsor, MD (1)

ZIP code	City	County	Map
21776	New Windsor	Carroll	View map

Demographics & statistics

6,434

Population

40.7

Median age

$106,823

Median household income

$47,053

Per capita income

$414,300

Median home value

$1,336

Median monthly rent

86.9%

Home ownership

5.8%

Poverty rate

5.2%

Unemployment

2,160

Housing units

34.1%

Bachelor's or higher

Age distribution

Male Female

271

Under 5

244

154

5–9

138

162

10–14

146

159

15–19

144

213

20–24

192

468

25–34

422

382

35–44

344

375

45–54

339

301

55–59

271

273

60–64

247

368

65–74

332

176

75–84

159

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,341	20.8%
18 and over	5,093	79.2%
65 and over	1,189	18.5%
Median age	40.7 years

Race & ethnicity

White 89%

Two or more races 3.6%

Black or African American 3.3%

Hispanic or Latino 2.5%

Other race 1%

Asian 0.6%

Group	Count	%
White	5,875	89%
Two or more races	235	3.6%
Black or African American	218	3.3%
Hispanic or Latino	166	2.5%
Other race	68	1%
Asian	38	0.6%

Household income

Under $10k 3.6%

$10k–$15k 0.3%

$15k–$25k 1.7%

$25k–$35k 2.5%

$35k–$50k 9.5%

$50k–$75k 12.4%

$75k–$100k 15.5%

$100k–$150k 21.6%

$150k–$200k 17.7%

$200k+ 15.2%

Range	% of households
Under $10k	3.6%
$10k–$15k	0.3%
$15k–$25k	1.7%
$25k–$35k	2.5%
$35k–$50k	9.5%
$50k–$75k	12.4%
$75k–$100k	15.5%
$100k–$150k	21.6%
$150k–$200k	17.7%
$200k+	15.2%
Median income	$106,823

Housing

Home values

Under $50k 0.4%

$50k–$100k 0.5%

$100k–$150k 0.8%

$150k–$200k 2.4%

$200k–$300k 13.0%

$300k–$500k 51.4%

$500k–$1M 30.6%

$1M+ 0.8%

Housing overview

Metric	Value
Median home value	$414,300
Median rent / month	$1,336
Owner occupied	86.9%
Renter occupied	13.1%
Vacant	4.6%
Single-family detached	89.3%
Large apartment buildings	0.8%
Mobile homes	2.2%
Median rooms	7.0
Avg household size (owned)	2.78

Year built

Era	%
2020 or later	0.6%
2010–2019	5.0%
2000–2009	6.7%
1990–1999	12.7%
1980–1989	22.9%
1970–1979	12.8%
1960–1969	11.5%
1950–1959	3.9%
1940–1949	0.6%
1939 or earlier	23.2%

Bedrooms

Size	% of units
No bedroom (studio)	0.6%
1 bedroom	2.1%
2 bedrooms	12.5%
3 bedrooms	47.1%
4 bedrooms	29.2%
5+ bedrooms	8.6%

Vehicles per household

Vehicles	% of households
No vehicle	1.3%
1 vehicle	12.9%
2 vehicles	38.1%
3 or more	47.7%

Heating fuel

Fuel type	%
Utility gas	1.8%
Electricity	55.5%
Propane / LP gas	4.1%
Fuel oil	30.7%
Wood	6.0%
Solar	0.3%
No fuel used	0.1%

Households & families

Household type	Count	%
Married-couple family	1,599	67.9%
Cohabiting couple	130	5.5%
Male householder, no spouse	375	15.9%
Female householder, no spouse	251	10.7%
Households with children under 18	778	33.0%
Households with seniors (65+)	806	34.2%
Average household size	2.71

Marital status

Status	Male	Female
Never married	26.6%	19.7%
Married	62.0%	63.2%
Separated	0.0%	0.3%
Widowed	5.7%	8.4%
Divorced	5.6%	8.4%

Education

Less than 9th grade 0.3%

Some HS, no diploma 2.8%

HS graduate 33.0%

Some college, no degree 18.3%

Associate's degree 11.5%

Bachelor's degree 21.4%

Graduate / professional 12.7%

Metric	%
HS diploma or higher	96.9%
Bachelor's or higher	34.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	142	12.7%
Kindergarten	84	7.5%
Elementary school	386	34.6%
High school	293	26.3%
College / grad school	209	18.8%

Employment

Industry of employment

Education & healthcare 20.8%

Construction 14.5%

Professional & management 12.9%

Other services 8.3%

Public administration 7.9%

Arts, food & hospitality 7.1%

Manufacturing 6.7%

Finance & real estate 6.1%

Retail trade 4.8%

Transportation & utilities 4.0%

Wholesale trade 2.8%

Agriculture & mining 2.1%

Information 2.1%

Occupation

Category	%
Management, business & arts	45.6%
Service	18.9%
Sales & office	15.0%
Natural resources & construction	14.1%
Production & transportation	6.4%

Employment type

Type	%
Private sector	65.6%
Government	20.2%
Self-employed	14.3%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	85.7%
Carpool	2.7%
Public transit	0.0%
Walk	0.3%
Other means	0.2%
Avg commute (minutes)	39.3

Poverty

All people 5.8%

Under 18 years 11.2%

18 and over 4.4%

Married-couple families 0.9%

Female-led households 53.4%

Income support

Source	% of households
Social Security	32.9%
Retirement income	28.3%
Supplemental Security	3.7%
Cash public assistance	0.8%
Food stamps / SNAP	5.7%

Health indicators

Condition	%
High blood pressure	32.5%
High cholesterol	34.4%
Heart disease	5.4%
Stroke	2.6%
Asthma	9.4%
Arthritis	24.5%
Kidney disease	2.5%
Pulmonary disease	5.9%
Cancer	6.6%

Behavior / access	%
Binge drinking	16.9%
No physical activity	19.8%
Less than 7 hrs sleep	29.1%
Fair or poor health	11.1%
Poor mental health	13.9%
Poor physical health	8.5%
No health insurance	9.1%
Visited doctor (checkup)	76.3%
Visited dentist	67.4%
Cholesterol screening	92.0%
Teeth loss	10.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	333	6.6%

Disability	%
Any disability	11.1%
Under 18	2.3%
18–64 years	7.8%
65 and over	31.5%

Health insurance coverage

Type	%
Private insurance	81.6%
Public insurance	30.1%
Uninsured under 19	2.1%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	5,919	92.0%
Spanish	170	2.9%
Other Indo-European	3	0.1%
Asian & Pacific Islander	167	2.8%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	6,151	95.6%
Born in same state	6,084	94.6%
Born in different state	4,331	67.3%
Foreign born	67	1.0%
Naturalized citizen	283	4.4%
Not a US citizen	105	37.1%

Ancestry

Ancestry	Count	%
Italian	1,198	18.6%
French	988	15.4%
Arab	846	13.1%
English	93	1.4%

Ancestry	Count	%
Dutch	18	0.3%
Polish	10	0.2%
Irish	9	0.1%
Norwegian	8	0.1%

Technology access

Metric	% of households
Computer access	36.6%
Internet access	96.7%

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

Frequently asked questions

What is the ZIP code for New Windsor, MD?

New Windsor, MD has one ZIP code: 21776.

What is the main ZIP code for New Windsor, MD?

The primary ZIP code for New Windsor, MD is 21776. The city uses area code 443 or 410 or 667 for phone service.

What county is New Windsor, MD in?

New Windsor is located in Carroll County, Maryland.

How many ZIP codes are in New Windsor, MD?

New Windsor, MD has 1 ZIP code.

What ZIP code should I use when mailing something to downtown New Windsor near Main Street?

Downtown New Windsor and the Main Street area are located in ZIP code 21776, which covers the central business district of this Carroll County community.

If I'm sending mail to a residence in the New Windsor area near the Carroll County border, what ZIP code applies?

All residential and commercial addresses throughout New Windsor, including areas near the surrounding Carroll County regions, use the single ZIP code 21776.