21866 ZIP Code — Tylerton, MD

Somerset County, Maryland

ZIP code 21866 is located in Tylerton, Maryland, within Somerset County. It covers approximately 0.12 square miles and serves a population of 104 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 410/667.

104

population

0.12

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

21866 ZIP code map

Cities in ZIP code 21866

Below are the cities the US Postal Service accepts for ZIP code 21866. Using any city not on this list may result in mail delivery delays.

City	Status
Tylerton	Acceptable

Demographics updated 05/2026

Population
Total population	104
Population density	867 / sq mi
State FIPS	24
County FIPS	039

Geography
Land area	0.12 sq mi
Water area	0.00 sq mi
Latitude	37.9678
Longitude	-76.0213
Timezone	Eastern (ET)
Area code	410/667

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	48.7%	52.7%	28.2%
$50k – $100k	41.0%	31.5%	28.2%
$100k – $200k	10.3%	14.6%	30.1%
Over $200k	0.0%	1.2%	13.4%

Demographics & statistics

104

Population

867

People per sq mi

60.6

Median age

$78,977

Median household income

$43,038

Per capita income

$95,900

Median home value

Median monthly rent

100.0%

Home ownership

35.6%

Poverty rate

18.7%

Unemployment

111

Housing units

4.8%

Bachelor's or higher

Age distribution

Male Female

25–34

35–44

45–54

55–59

60–64

65–74

← Male

Female →

Age summary

Group	Count	%
Under 18	0	0.0%
18 and over	104	100.0%
65 and over	43	41.3%
Median age	60.6 years

Race & ethnicity

White 92.5%

Hispanic or Latino 2.8%

Other race 2.8%

Black or African American 1.9%

Group	Count	%
White	99	92.5%
Hispanic or Latino	3	2.8%
Other race	3	2.8%
Black or African American	2	1.9%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	48.7%	52.7%	28.2%
$50k – $100k	41.0%	31.5%	28.2%
$100k – $200k	10.3%	14.6%	30.1%
Over $200k	0.0%	1.2%	13.4%

$15k–$25k 30.3%

$75k–$100k 54.5%

$100k–$150k 15.2%

Range	% of households
$15k–$25k	30.3%
$75k–$100k	54.5%
$100k–$150k	15.2%
Median income	$78,977

Housing

Home values

$50k–$100k 63.6%

$150k–$200k 28.8%

$200k–$300k 7.6%

Housing overview

Metric	Value
Median home value	$95,900
Median rent / month	$0
Owner occupied	100.0%
Renter occupied	0.0%
Vacant	40.5%
Single-family detached	72.1%
Large apartment buildings	0.0%
Mobile homes	23.4%
Median rooms	6.6
Avg household size (owned)	1.58

Year built

Era	%
2020 or later	0.0%
2010–2019	0.0%
2000–2009	12.6%
1990–1999	0.0%
1980–1989	19.8%
1970–1979	3.6%
1960–1969	4.5%
1950–1959	31.5%
1940–1949	27.9%
1939 or earlier	0.0%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.0%
2 bedrooms	29.7%
3 bedrooms	61.3%
4 bedrooms	9.0%
5+ bedrooms	0.0%

Vehicles per household

Vehicles	% of households
No vehicle	7.6%
1 vehicle	63.6%
2 vehicles	28.8%
3 or more	0.0%

Heating fuel

Fuel type	%
Utility gas	7.6%
Electricity	54.5%
Fuel oil	37.9%

Households & families

Household type	Count	%
Married-couple family	44	66.7%
Cohabiting couple	0	0.0%
Male householder, no spouse	22	33.3%
Female householder, no spouse	0	0.0%
Households with children under 18	0	0.0%
Households with seniors (65+)	44	66.7%
Average household size	1.58

Marital status

Status	Male	Female
Never married	2.8%	0.0%
Married	66.2%	100.0%
Separated	0.0%	0.0%
Widowed	0.0%	0.0%
Divorced	31.0%	0.0%

Education

Less than 9th grade 46.2%

Some HS, no diploma 21.2%

HS graduate 19.2%

Some college, no degree 0.0%

Associate's degree 8.7%

Bachelor's degree 4.8%

Graduate / professional 0.0%

Metric	%
HS diploma or higher	32.7%
Bachelor's or higher	4.8%

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

Agriculture & mining 36.1%

Retail trade 32.8%

Transportation & utilities 23.0%

Education & healthcare 8.2%

Occupation

Category	%
Management, business & arts	8.2%
Service	0.0%
Sales & office	0.0%
Natural resources & construction	36.1%
Production & transportation	55.7%

Employment type

Type	%
Private sector	63.9%
Government	0.0%
Self-employed	36.1%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	0.0%
Carpool	0.0%
Public transit	8.2%
Walk	36.1%
Work from home	23.0%
Other means	32.8%
Avg commute (minutes)	9.8

Poverty

All people 35.6%

Under 18 years 0.0%

18 and over 35.6%

Married-couple families 45.5%

Female-led households 0.0%

Income support

Source	% of households
Social Security	15.2%
Retirement income	37.9%
Supplemental Security	0.0%
Cash public assistance	0.0%
Food stamps / SNAP	0.0%

Health indicators

Condition	%
Obesity	33.6%
High blood pressure	49.8%
High cholesterol	46.3%
Diabetes	15.6%
Heart disease	11.7%
Stroke	5.2%
Asthma	10.0%
Arthritis	39.9%
Kidney disease	4.6%
Pulmonary disease	11.6%
Cancer	11.0%

Behavior / access	%
Smoking	18.1%
Binge drinking	11.5%
No physical activity	31.0%
Less than 7 hrs sleep	30.0%
Depression	19.7%
Fair or poor health	18.7%
Poor mental health	13.0%
Poor physical health	12.9%
No health insurance	11.4%
Visited doctor (checkup)	81.5%
Visited dentist	57.4%
Cholesterol screening	93.7%
Teeth loss	16.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	0	0.0%

Disability	%
Any disability	21.2%
Under 18	0.0%
18–64 years	36.1%
65 and over	0.0%

Health insurance coverage

Type	%
Private insurance	34.6%
Public insurance	70.2%
No insurance	0.0%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	104	100.0%
Spanish	3	2.9%
Other Indo-European	3	2.9%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	101	97.1%
Born in same state	101	97.1%
Born in different state	99	95.2%
Foreign born	0	0.0%
Naturalized citizen	3	2.9%
Not a US citizen	3	100.0%

Ancestry

Ancestry	Count	%
French	28	26.9%

Technology access

Metric	% of households
Computer access	63.5%
Internet access	100.0%

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

Frequently asked questions about ZIP code 21866

What city is ZIP code 21866 in?

ZIP code 21866 is primarily assigned to Tylerton, Maryland.

What county is ZIP code 21866 in?

ZIP code 21866 falls within Somerset County, Maryland.

Does ZIP code 21866 have an older population?

41% of residents in ZIP code 21866 are 65 or older, above the national average of ~17%.

What is the poverty rate in ZIP code 21866?

36% of residents in ZIP code 21866 live below the poverty line, above the national average.

How educated is the population of ZIP code 21866?

5% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

What is the typical home value in ZIP code 21866?

The median home value in ZIP code 21866 is $95,900.

What timezone is ZIP code 21866 in?

ZIP code 21866 observes the EST timezone.