21543 ZIP Code — Midlothian, MD

Allegany County, Maryland

ZIP code 21543 is located in Midlothian, Maryland, within Allegany County. It covers approximately 2.47 square miles and serves a population of 277 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 301/240.

About ZIP code 21543

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $159,300. Owner-occupancy is high at 95%, well above the national average.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. An above-average commute of 38 minutes suggests many residents work outside the immediate area.

College attainment at 4% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 21543 reflects a community defined by a trades-oriented workforce, high homeownership, a significant Social Security-dependent population, and elevated reliance on food assistance.

277

population

2.47

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

21543 ZIP code map

Cities in ZIP code 21543

Below are the cities the US Postal Service accepts for ZIP code 21543. Using any city not on this list may result in mail delivery delays.

City	Status
Midlothian	Acceptable

Demographics updated 06/2026

Population
Total population	277
Population density	112 / sq mi
State FIPS	24
County FIPS	001

Geography
Land area	2.47 sq mi
Water area	0.00 sq mi
Latitude	39.6385
Longitude	-78.9518
Timezone	Eastern (ET)
Area code	301/240

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	81.0%	49.9%	28.2%
$50k – $100k	13.9%	33.2%	28.2%
$100k – $200k	5.1%	14.9%	30.1%
Over $200k	0.0%	2.0%	13.4%

Demographics & statistics

277

Population

112

People per sq mi

50.3

Median age

Median household income

$41,072

Per capita income

$159,300

Median home value

Median monthly rent

94.8%

Home ownership

0.0%

Poverty rate

31.8%

Unemployment

192

Housing units

3.8%

Bachelor's or higher

Age distribution

Male Female

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

← Male

Female →

Age summary

Group	Count	%
Under 18	0	0.0%
18 and over	277	100.0%
65 and over	119	43.0%
Median age	50.3 years

Race & ethnicity

White 96.8%

Black or African American 3.2%

Group	Count	%
White	268	96.8%
Black or African American	9	3.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	81.0%	49.9%	28.2%
$50k – $100k	13.9%	33.2%	28.2%
$100k – $200k	5.1%	14.9%	30.1%
Over $200k	0.0%	2.0%	13.4%

$25k–$35k 26.2%

$35k–$50k 41.3%

$75k–$100k 4.7%

$100k–$150k 27.9%

Range	% of households
$25k–$35k	26.2%
$35k–$50k	41.3%
$75k–$100k	4.7%
$100k–$150k	27.9%
Median income	$0

Housing

Home values

$50k–$100k 6.1%

$100k–$150k 28.8%

$150k–$200k 60.1%

$300k–$500k 4.9%

Housing overview

Metric	Value
Median home value	$159,300
Median rent / month	$0
Owner occupied	94.8%
Renter occupied	5.2%
Vacant	14.4%
Single-family detached	95.5%
Large apartment buildings	0.0%
Mobile homes	0.0%
Median rooms	7.5
Avg household size (owned)	1.64

Year built

Era	%
2020 or later	0.0%
2010–2019	0.0%
2000–2009	4.0%
1990–1999	0.0%
1980–1989	13.9%
1970–1979	34.8%
1960–1969	8.5%
1950–1959	0.0%
1940–1949	24.4%
1939 or earlier	14.4%

Bedrooms

Size	% of units
No bedroom (studio)	2.0%
1 bedroom	3.5%
2 bedrooms	21.4%
3 bedrooms	38.3%
4 bedrooms	29.9%
5+ bedrooms	5.0%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	65.7%
2 vehicles	13.4%
3 or more	20.9%

Heating fuel

Fuel type	%
Utility gas	5.2%
Propane / LP gas	10.5%
Fuel oil	49.4%

Households & families

Household type	Count	%
Married-couple family	19	11.0%
Cohabiting couple	40	23.3%
Male householder, no spouse	32	18.6%
Female householder, no spouse	81	47.1%
Households with children under 18	0	0.0%
Households with seniors (65+)	110	64.0%
Average household size	1.61

Marital status

Status	Male	Female
Never married	55.2%	35.7%
Married	14.9%	14.7%
Separated	3.0%	0.0%
Widowed	0.0%	39.2%
Divorced	26.9%	10.5%

Education

Less than 9th grade 1.9%

Some HS, no diploma 10.7%

HS graduate 58.6%

Some college, no degree 12.3%

Associate's degree 12.6%

Bachelor's degree 0.0%

Graduate / professional 3.8%

Metric	%
HS diploma or higher	87.4%
Bachelor's or higher	3.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	0	0.0%
Elementary school	0	0.0%
High school	0	0.0%
College / grad school	0	0.0%

Employment

Industry of employment

Wholesale trade 50.8%

Education & healthcare 18.3%

Professional & management 17.5%

Finance & real estate 13.3%

Occupation

Category	%
Management, business & arts	77.5%
Service	0.0%
Sales & office	15.8%
Natural resources & construction	6.7%
Production & transportation	0.0%

Employment type

Type	%
Private sector	73.3%
Government	26.7%
Self-employed	0.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	87.5%
Carpool	4.2%
Public transit	0.0%
Walk	0.0%
Work from home	8.3%
Other means	0.0%
Avg commute (minutes)	37.7

Poverty

All people 0.0%

Under 18 years 0.0%

18 and over 0.0%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	64.0%
Retirement income	17.4%
Supplemental Security	2.9%
Cash public assistance	18.6%
Food stamps / SNAP	37.8%

Health indicators

Condition	%
Obesity	32.0%
High blood pressure	39.6%
High cholesterol	33.9%
Diabetes	11.3%
Heart disease	7.4%
Stroke	3.5%
Asthma	9.9%
Arthritis	31.3%
Kidney disease	3.2%
Pulmonary disease	8.1%
Cancer	8.2%

Behavior / access	%
Smoking	17.1%
Binge drinking	14.2%
No physical activity	24.7%
Less than 7 hrs sleep	31.9%
Depression	22.3%
Fair or poor health	14.7%
Poor mental health	14.2%
Poor physical health	10.4%
No health insurance	9.8%
Visited doctor (checkup)	78.0%
Visited dentist	63.7%
Cholesterol screening	91.7%
Teeth loss	13.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	0	0.0%

Disability	%
Any disability	20.9%
Under 18	0.0%
18–64 years	21.5%
65 and over	20.2%

Health insurance coverage

Type	%
Private insurance	47.7%
Public insurance	65.0%
No insurance	0.0%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	277	100.0%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	272	98.2%
Born in same state	272	98.2%
Born in different state	177	63.9%
Foreign born	0	0.0%
Naturalized citizen	5	1.8%
Not a US citizen	5	100.0%

Ancestry

Ancestry	Count	%
English	57	20.6%

Ancestry	Count	%
Italian	17	6.1%

Technology access

Metric	% of households
Computer access	62.1%
Internet access	95.9%

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

Frequently asked questions about ZIP code 21543

What city is ZIP code 21543 in?

ZIP code 21543 is primarily assigned to Midlothian, Maryland.

What county is ZIP code 21543 in?

ZIP code 21543 falls within Allegany County, Maryland.

Does ZIP code 21543 have an older population?

43% of residents in ZIP code 21543 are 65 or older, above the national average of ~17%.

Does ZIP code 21543 have a large retiree population?

64% of households in ZIP code 21543 receive Social Security income, suggesting a significant retiree or disability population.

Is ZIP code 21543 mostly owner-occupied?

95% of occupied units in ZIP code 21543 are owner-occupied, well above the national average.

How educated is the population of ZIP code 21543?

4% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

What timezone is ZIP code 21543 in?

ZIP code 21543 observes the EST timezone.