ZIP Code Tabulation Area · Maryland

ZIP Code 21631: Dorchester County, MD

ZIP Code 21631 (Dorchester County, Maryland) has an estimated 2,429 residents in 942 households. The median household income is $73,864, the median home value is $306,700 and the median gross rent is $1,541/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated Oct 26, 2026

Total population

2,429

Margin of error ±401

Median household income

$73,864

Margin of error ±$16,882

Median home value

$306,700

Margin of error ±$46,181

Median gross rent

$1,541/mo

Margin of error ±$289

Median age

48.3 yrs

Margin of error ±9.7 yrs

Mean travel time to work

18.4 min

Margin of error ±6.8 min

How ZIP 21631 compares with Maryland and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 2163148.3 yrsMaryland39.4 yrsUnited States38.9 yrs

Median household income

ZIP 21631$73,864Maryland$103,678United States$80,734

Per capita income

ZIP 21631$37,827Maryland$52,979United States$44,673

Poverty rate

ZIP 216314.9%Maryland9.4%United States12.5%

Unemployment rate

ZIP 216315.7%Maryland4.9%United States5.2%

Bachelor's degree or higher

ZIP 2163123.8%Maryland43.4%United States35.7%

Median home value

ZIP 21631$306,700Maryland$419,900United States$332,700

Median gross rent

ZIP 21631$1,541/moMaryland$1,705/moUnited States$1,413/mo

Owner-occupied homes

ZIP 2163185.4%Maryland67.6%United States65.2%

Mean travel time to work

ZIP 2163118.4 minMaryland31.1 minUnited States26.4 min

Worked from home

ZIP 216318.8%Maryland19.3%United States15.1%

All figures for ZIP 21631

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 21631 — ACS 2020–2024 5-year estimates
Measure	ZIP 21631	Margin of error	Maryland	United States
Total population	2,429	±401	6,206,011	334,922,499
Median age	48.3 yrs	±9.7 yrs	39.4 yrs	38.9 yrs
Households	942	±131	2,362,928	129,227,496
Median household income	$73,864	±$16,882	$103,678	$80,734
Per capita income	$37,827	±$4,879	$52,979	$44,673
Poverty rate	4.9%	±3.0 pts	9.4%	12.5%
Unemployment rate	5.7%	±4.7 pts	4.9%	5.2%
Bachelor's degree or higher	23.8%	±6.9 pts	43.4%	35.7%
Median home value	$306,700	±$46,181	$419,900	$332,700
Median gross rent	$1,541/mo	±$289	$1,705/mo	$1,413/mo
Owner-occupied homes	85.4%	±1.7 pts	67.6%	65.2%
Mean travel time to work	18.4 min	±6.8 min	31.1 min	26.4 min
Worked from home	8.8%	±6.3 pts	19.3%	15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 21631
Group	ZIP 21631	Maryland	United States
White alone, not Hispanic or Latino	71.2%	46.6%	57.4%
Black or African American alone, not Hispanic or Latino	6.1%	28.9%	11.9%
American Indian and Alaska Native alone, not Hispanic or Latino	0.0%	0.1%	0.5%
Asian alone, not Hispanic or Latino	0.0%	6.5%	5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino	0.0%	0.0%	0.2%
Some other race alone, not Hispanic or Latino	0.0%	0.7%	0.6%
Two or more races, not Hispanic or Latino	10.5%	4.6%	4.3%
Hispanic or Latino (of any race)	12.2%	12.5%	19.3%

Where ZIP 21631 is

State: Maryland
Main county: Dorchester County
Largest overlapping place: East New Market (2% of the ZIP's land area)
Land area: 24.14 sq mi· about 101 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in Dorchester County

21613 Dorchester County, MD 21622 Dorchester County, MD 21626 Dorchester County, MD 21627 Dorchester County, MD 21634 Dorchester County, MD 21643 Dorchester County, MD 21648 Madison, MD 21659 Dorchester County, MD 21664 Secretary, MD 21669 Taylors Island, MD 21672 Dorchester County, MD 21675 Dorchester County, MD 21677 Dorchester County, MD 21835 Dorchester County, MD 21869 Dorchester County, MD

See every ZIP code in Maryland, or compare ZIP 21631 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.