ZIP Code 21231

ZIP Code Tabulation Area in Baltimore city, Maryland.

Population: 14,556
Median household income: $85,382
Median home value: $336,500

ZIP Code 21231 is a ZIP Code Tabulation Area in Baltimore city, Maryland, home to about 14,556 residents. Its median household income of $85,382 runs above the Baltimore city figure of $59,623.

From 2019 to 2023, ZIP Code 21231's population declined 8.2% from 15,854 to 14,556, while its median gross rent rose 32.1% from $1,294 to $1,710.

The median resident is 32.4 years old. The largest age group is 25 to 34, 33.2% of residents.

Demographics

ACS 2019–2023

Population: 14,556
Median age: 32.4 yrs
Median household income: $85,382
Median home value: $336,500
Median gross rent: $1,710
Housing units: 9,342
Homeownership rate: 35.0%
Bachelor's degree or higher: 65.9%
Unemployment rate: 4.4%

Trends

ACS 5-year · 2019–2023

Population

15,85414,556

Median household income

$71,408$85,382

Median home value

$294,700$336,500

Median gross rent

$1,294$1,710

Year	Population	Median household income	Median home value	Median gross rent
2019	15,854	$71,408	$294,700	$1,294
2020	15,906	$73,538	$306,400	$1,410
2021	15,746	$73,089	$297,000	$1,462
2022	14,780	$88,091	$330,600	$1,637
2023	14,556	$85,382	$336,500	$1,710

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

Age distribution

Under 56.0%

5 to 178.4%

18 to 248.6%

25 to 3433.2%

35 to 4416.3%

45 to 5410.4%

55 to 649.0%

65 to 746.1%

75 and over2.1%

	Count	Share
Under 5	877	6.0%
5 to 17	1,218	8.4%
18 to 24	1,251	8.6%
25 to 34	4,830	33.2%
35 to 44	2,372	16.3%
45 to 54	1,507	10.4%
55 to 64	1,311	9.0%
65 to 74	891	6.1%
75 and over	299	2.1%

Race & ethnicity

	Count	Share
White (non-Hispanic)	7,695	52.9%
Black or African American	4,273	29.4%
American Indian & Alaska Native	20	0.1%
Asian	629	4.3%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	64	0.4%
Two or more races	630	4.3%
Hispanic or Latino (any race)	1,245	8.6%

Educational attainment (age 25+)

No high school diploma5.5%

High school graduate14.3%

Some college or associate's14.3%

Bachelor's degree34.8%

Graduate or professional degree31.1%

	Count	Share
No high school diploma	613	5.5%
High school graduate	1,605	14.3%
Some college or associate's	1,607	14.3%
Bachelor's degree	3,903	34.8%
Graduate or professional degree	3,482	31.1%

Commute to work

Mean travel time to work: 26 min

Drove alone46.3%

Carpooled3.8%

Public transit4.8%

Walked17.2%

Bicycle1.6%

Worked from home24.8%

Other means1.4%

How workers get to work

	Count	Share
Drove alone	4,271	46.3%
Carpooled	351	3.8%
Public transit	444	4.8%
Walked	1,590	17.2%
Bicycle	149	1.6%
Worked from home	2,293	24.8%
Other means	133	1.4%

Travel time

	Count	Share
Under 15 min	1,565	22.6%
15 to 29 min	2,761	39.8%
30 to 44 min	1,724	24.8%
45 to 59 min	305	4.4%
60+ min	583	8.4%

Households

Average household size: 1.85
Poverty rate: 19.9% (2,882 of 14,462)

	Count	Share
Family households	2,788	35.8%
Nonfamily households	5,001	64.2%

Housing

Median year structure built: 1938

Occupancy

	Count	Share
Occupied	7,789	83.4%
Vacant	1,553	16.6%

Tenure (of occupied units)

	Count	Share
Owner-occupied	2,727	35.0%
Renter-occupied	5,062	65.0%

1-unit, detached3.2%

1-unit, attached47.7%

2 to 4 units13.7%

5 to 19 units8.6%

20 or more units26.7%

Mobile home & other0.1%

Units in structure

	Count	Share
1-unit, detached	302	3.2%
1-unit, attached	4,454	47.7%
2 to 4 units	1,282	13.7%
5 to 19 units	806	8.6%
20 or more units	2,492	26.7%
Mobile home & other	6	0.1%

ZIP Code 21231

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