21783 ZIP Code — Smithsburg, MD

Washington County, Maryland

ZIP code 21783 is located in Smithsburg, Maryland, within Washington County. It covers approximately 47.60 square miles and serves a population of 9,866 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 240/301.

About ZIP code 21783

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $305,500. Owner-occupancy is high at 78%, well above the national average.

Median household income is $94,432. 37% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. An above-average commute of 35 minutes suggests many residents work outside the immediate area.

College attainment at 21% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 21783 reflects a community defined by high homeownership and a significant Social Security-dependent population.

9,866

population

47.60

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

21783 ZIP code map

Cities in ZIP code 21783

Below are the cities the US Postal Service accepts for ZIP code 21783. Using any city not on this list may result in mail delivery delays.

City	Status
Smithsburg	Preferred

Nearby ZIP codes

21742 Hagerstown (4.3 mi) 21719 Cascade (5.6 mi) 21780 Sabillasville (6 mi) 21773 Myersville (7.3 mi) 21746 Hagerstown (7.5 mi) 21740 Hagerstown (7.6 mi) 21749 Hagerstown (7.7 mi) 17214 Blue Ridge Summit (8.6 mi) 21788 Thurmont (8.8 mi) 21767 Maugansville (9.9 mi) 17268 Waynesboro (10.4 mi) 21713 Boonsboro (11 mi)

Demographics updated 06/2026

Population
Total population	9,866
Population density	207 / sq mi
State FIPS	24
County FIPS	043

Geography
Land area	47.60 sq mi
Water area	0.07 sq mi
Latitude	39.6474
Longitude	-77.5746
Timezone	Eastern (ET)
Area code	240/301

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	24.5%	40.3%	28.2%
$50k – $100k	36.4%	30.7%	28.2%
$100k – $200k	34.4%	23.5%	30.1%
Over $200k	4.7%	5.6%	13.4%

Demographics & statistics

9,866

Population

207

People per sq mi

42.5

Median age

$94,432

Median household income

$40,872

Per capita income

$305,500

Median home value

$1,065

Median monthly rent

78.4%

Home ownership

7.8%

Poverty rate

2.2%

Unemployment

3,066

Housing units

20.5%

Bachelor's or higher

Age distribution

Male Female

242

Under 5

249

390

5–9

401

298

10–14

305

226

15–19

232

180

20–24

185

673

25–34

691

546

35–44

560

698

45–54

716

447

55–59

458

316

60–64

325

558

65–74

573

248

75–84

254

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	2,188	22.2%
18 and over	7,678	77.8%
65 and over	1,728	17.5%
Median age	42.5 years

Race & ethnicity

White 92.4%

Two or more races 3.4%

Black or African American 1.8%

Hispanic or Latino 1.6%

Asian 0.9%

Other race 0.1%

Group	Count	%
White	9,256	92.4%
Two or more races	338	3.4%
Black or African American	178	1.8%
Hispanic or Latino	156	1.6%
Asian	86	0.9%
Other race	8	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	24.5%	40.3%	28.2%
$50k – $100k	36.4%	30.7%	28.2%
$100k – $200k	34.4%	23.5%	30.1%
Over $200k	4.7%	5.6%	13.4%

Under $10k 3.7%

$10k–$15k 1.8%

$15k–$25k 4.2%

$25k–$35k 3.2%

$35k–$50k 8.6%

$50k–$75k 15.4%

$75k–$100k 15.1%

$100k–$150k 23.8%

$150k–$200k 11.0%

$200k+ 13.2%

Range	% of households
Under $10k	3.7%
$10k–$15k	1.8%
$15k–$25k	4.2%
$25k–$35k	3.2%
$35k–$50k	8.6%
$50k–$75k	15.4%
$75k–$100k	15.1%
$100k–$150k	23.8%
$150k–$200k	11.0%
$200k+	13.2%
Median income	$94,432

Housing

Home values

Under $50k 1.9%

$50k–$100k 1.0%

$100k–$150k 3.7%

$150k–$200k 4.0%

$200k–$300k 37.9%

$300k–$500k 36.4%

$500k–$1M 13.8%

$1M+ 1.4%

Housing overview

Metric	Value
Median home value	$305,500
Median rent / month	$1,065
Owner occupied	78.4%
Renter occupied	21.6%
Vacant	7.0%
Single-family detached	87.2%
Large apartment buildings	0.0%
Mobile homes	1.8%
Median rooms	6.6
Avg household size (owned)	2.68

Year built

Era	%
2020 or later	0.2%
2010–2019	1.3%
2000–2009	15.9%
1990–1999	15.3%
1980–1989	12.2%
1970–1979	11.8%
1960–1969	6.0%
1950–1959	7.5%
1940–1949	5.9%
1939 or earlier	23.8%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	2.1%
2 bedrooms	23.0%
3 bedrooms	43.3%
4 bedrooms	24.0%
5+ bedrooms	7.5%

Vehicles per household

Vehicles	% of households
No vehicle	1.3%
1 vehicle	19.3%
2 vehicles	37.3%
3 or more	42.1%

Heating fuel

Fuel type	%
Utility gas	1.0%
Electricity	52.1%
Propane / LP gas	9.1%
Fuel oil	27.9%
Wood	7.9%
Solar	0.3%
No fuel used	0.8%

Households & families

Household type	Count	%
Married-couple family	2,110	59.1%
Cohabiting couple	350	9.8%
Male householder, no spouse	498	13.9%
Female householder, no spouse	613	17.2%
Households with children under 18	1,184	33.2%
Households with seniors (65+)	1,227	34.4%
Average household size	2.74

Marital status

Status	Male	Female
Never married	32.7%	21.7%
Married	58.4%	58.3%
Separated	0.8%	0.8%
Widowed	3.5%	8.9%
Divorced	4.6%	10.4%

Education

Less than 9th grade 1.2%

Some HS, no diploma 10.4%

HS graduate 38.4%

Some college, no degree 20.9%

Associate's degree 8.6%

Bachelor's degree 11.6%

Graduate / professional 8.8%

Metric	%
HS diploma or higher	88.4%
Bachelor's or higher	20.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	116	5.4%
Kindergarten	171	8.0%
Elementary school	1,004	47.1%
High school	411	19.3%
College / grad school	430	20.2%

Employment

Industry of employment

Education & healthcare 22.6%

Retail trade 12.8%

Professional & management 11.2%

Construction 10.0%

Manufacturing 8.5%

Public administration 7.0%

Transportation & utilities 6.0%

Other services 5.4%

Arts, food & hospitality 5.3%

Finance & real estate 4.7%

Agriculture & mining 2.9%

Information 2.0%

Wholesale trade 1.7%

Occupation

Category	%
Management, business & arts	38.9%
Service	15.6%
Sales & office	25.0%
Natural resources & construction	8.8%
Production & transportation	11.6%

Employment type

Type	%
Private sector	72.9%
Government	21.7%
Self-employed	5.3%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	81.2%
Carpool	7.3%
Public transit	0.3%
Walk	0.8%
Work from home	9.8%
Other means	0.6%
Avg commute (minutes)	35.2

Poverty

All people 7.8%

Under 18 years 7.1%

18 and over 7.9%

Married-couple families 3.0%

Female-led households 11.7%

Income support

Source	% of households
Social Security	37.3%
Retirement income	29.5%
Supplemental Security	4.3%
Cash public assistance	1.0%
Food stamps / SNAP	7.2%

Health indicators

Condition	%
Obesity	34.5%
High blood pressure	34.1%
High cholesterol	34.6%
Diabetes	9.5%
Heart disease	6.0%
Stroke	2.7%
Asthma	10.2%
Arthritis	26.1%
Kidney disease	2.6%
Pulmonary disease	6.5%
Cancer	6.9%

Behavior / access	%
Smoking	17.6%
Binge drinking	15.5%
No physical activity	23.3%
Less than 7 hrs sleep	32.9%
Depression	20.5%
Fair or poor health	11.6%
Poor mental health	14.2%
Poor physical health	8.9%
No health insurance	9.9%
Visited doctor (checkup)	76.7%
Visited dentist	66.9%
Cholesterol screening	91.9%
Teeth loss	11.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	497	6.5%

Disability	%
Any disability	15.4%
Under 18	5.9%
18–64 years	12.1%
65 and over	38.4%

Health insurance coverage

Type	%
Private insurance	69.0%
Public insurance	36.5%
No insurance	9.2%
Uninsured under 19	14.8%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	9,375	95.0%
Spanish	104	1.1%
Other Indo-European	26	0.3%
Asian & Pacific Islander	46	0.5%
Other languages	32	0.3%

Place of birth & citizenship

Origin	Count	%
Native born (US)	9,663	97.9%
Born in same state	9,558	96.9%
Born in different state	6,207	62.9%
Foreign born	105	1.1%
Naturalized citizen	203	2.1%
Not a US citizen	132	65.0%

Ancestry

Ancestry	Count	%
Italian	1,572	15.9%
French	880	8.9%
Arab	718	7.3%
English	78	0.8%

Ancestry	Count	%
German	75	0.8%
Irish	33	0.3%
Polish	19	0.2%
Norwegian	15	0.2%

Technology access

Metric	% of households
Computer access	36.2%
Internet access	93.6%

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

Frequently asked questions about ZIP code 21783

What city is ZIP code 21783 in?

ZIP code 21783 is primarily assigned to Smithsburg, Maryland.

What county is ZIP code 21783 in?

ZIP code 21783 falls within Washington County, Maryland.

Does ZIP code 21783 have a large retiree population?

37% of households in ZIP code 21783 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 21783?

The median home value in ZIP code 21783 is $305,500.

What is the population of ZIP code 21783?

ZIP code 21783 has an estimated population of 9,866 residents, with a density of 207 people per square mile.

What is the median household income in ZIP code 21783?

The median household income in ZIP code 21783 is $94,432, above the national median of ~$75,000.

What timezone is ZIP code 21783 in?

ZIP code 21783 observes the EST timezone.