ZIP Code 21639

ZIP Code Tabulation Area in Caroline County, Maryland.

Population: 4,621
Median household income: $59,274
Median home value: $270,300

ZIP Code 21639 (Caroline County, Maryland) is home to about 4,621 residents. Its median household income of $59,274 runs below the Caroline County figure of $66,368.

From 2019 to 2023, ZIP Code 21639's population declined 12.5% from 5,279 to 4,621, while its median gross rent rose 18.5% from $858 to $1,017.

14.3% of residents live below the poverty line. Households average 2.74 people.

Demographics

ACS 2019–2023

Population: 4,621
Median age: 37.3 yrs
Median household income: $59,274
Median home value: $270,300
Median gross rent: $1,017
Housing units: 1,890
Homeownership rate: 71.4%
Bachelor's degree or higher: 12.2%
Unemployment rate: 3.0%

Trends

ACS 5-year · 2019–2023

Population

5,2794,621

Median household income

$55,417$59,274

Median home value

$167,000$270,300

Median gross rent

$858$1,017

Year	Population	Median household income	Median home value	Median gross rent
2019	5,279	$55,417	$167,000	$858
2020	5,410	$52,273	$180,500	$1,046
2021	4,881	$54,882	$187,800	$1,056
2022	4,734	$56,173	$245,200	$1,154
2023	4,621	$59,274	$270,300	$1,017

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 58.4%

5 to 1719.8%

18 to 247.8%

25 to 3410.3%

35 to 4414.3%

45 to 5411.6%

55 to 6412.7%

65 to 748.8%

75 and over6.3%

	Count	Share
Under 5	387	8.4%
5 to 17	914	19.8%
18 to 24	361	7.8%
25 to 34	475	10.3%
35 to 44	660	14.3%
45 to 54	537	11.6%
55 to 64	588	12.7%
65 to 74	407	8.8%
75 and over	292	6.3%

Race & ethnicity

	Count	Share
White (non-Hispanic)	3,263	70.6%
Black or African American	406	8.8%
American Indian & Alaska Native	0	0.0%
Asian	2	0.0%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	0	0.0%
Two or more races	86	1.9%
Hispanic or Latino (any race)	864	18.7%

Educational attainment (age 25+)

No high school diploma16.8%

High school graduate42.3%

Some college or associate's28.7%

Bachelor's degree7.3%

Graduate or professional degree4.9%

	Count	Share
No high school diploma	498	16.8%
High school graduate	1,251	42.3%
Some college or associate's	849	28.7%
Bachelor's degree	215	7.3%
Graduate or professional degree	146	4.9%

Commute to work

Mean travel time to work: 36 min

Drove alone77.4%

Carpooled8.9%

Public transit1.2%

Walked5.9%

Bicycle0.0%

Worked from home3.7%

Other means3.0%

How workers get to work

	Count	Share
Drove alone	1,643	77.4%
Carpooled	188	8.9%
Public transit	25	1.2%
Walked	125	5.9%
Bicycle	0	0.0%
Worked from home	79	3.7%
Other means	63	3.0%

Travel time

	Count	Share
Under 15 min	477	23.3%
15 to 29 min	402	19.7%
30 to 44 min	482	23.6%
45 to 59 min	233	11.4%
60+ min	450	22.0%

Households

Average household size: 2.74
Poverty rate: 14.3% (663 of 4,621)

	Count	Share
Family households	1,073	63.8%
Nonfamily households	609	36.2%

Housing

Median year structure built: 1982

Occupancy

	Count	Share
Occupied	1,682	89.0%
Vacant	208	11.0%

Tenure (of occupied units)

	Count	Share
Owner-occupied	1,201	71.4%
Renter-occupied	481	28.6%

1-unit, detached75.2%

1-unit, attached5.4%

2 to 4 units6.7%

5 to 19 units3.0%

20 or more units4.0%

Mobile home & other5.8%

Units in structure

	Count	Share
1-unit, detached	1,421	75.2%
1-unit, attached	102	5.4%
2 to 4 units	126	6.7%
5 to 19 units	57	3.0%
20 or more units	75	4.0%
Mobile home & other	109	5.8%

ZIP Code 21639

Demographics

Trends

Age distribution

Race & ethnicity

Educational attainment (age 25+)

Commute to work

Households

Housing

Geography

Counties this ZIP covers

Compare with nearby ZIP codes

National ZIP rankings

Nearby ZIP codes