PlainZIP

Baltimore, MD · standard

ZIP Code 21230

Baltimore County, Maryland - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

33,568
2,055/sq mi
$91,842
Median income
$330,100
Median home value
58.8%
Bachelor's or higher

The verdict

Baltimore pairs an upper-quartile household income with above-median home values, in a suburban-density, mixed-tenure area.

Top 25%
household income, US ZIPs
Top 29%
home value, US ZIPs
2,055
people per sq mi
51%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 21230 against every reporting US ZIP.

ZIP code 21230 is a densely settled ZIP (a standard USPS delivery area) in Baltimore, Baltimore County, Maryland, with 33,568 residents across 16.3 square miles, a density of 2,055 people per square mile, in the New York time zone.

ZIP 21230 lands in the middle-income range, with a median household income of $91,842 (20% below the Maryland average), while per-capita income is $63,213. The poverty rate stands at 15.2% and the unemployment rate at 3.8%. The typical home here is valued at $330,100 (26% below the state average); renters pay a median of $1,717 monthly, and 50.7% of units are owner-occupied.

This is a highly-educated ZIP: 58.8% of adults hold a bachelor's degree or higher, the median age is 33.9, and the average commute is 26 minutes. A geography-based comparison follows: 10 ZIP codes within about 10 miles of 21230, plus 6 more within Baltimore County, give a clearer read than the national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 21230

Top 5 sectors by establishment count in Baltimore, MD

Which industries have the most business establishments in ZIP 21230.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 21230, Baltimore, MD · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

33,568

Population

16.3

Area (sq mi)

2,055

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 21230?

33.9

Median Age

49.8%

Male

50.2%

Female

9.9%

Foreign-Born

White 56.0%
African American 24.2%
Asian 3.5%
American Indian or Alaska Native 0.5%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 8.2%
Hispanic or Latino 11.6%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$91,842

Median Household Income

-20% vs state

$63,213

Per Capita Income

15.2%

Poverty Rate

3.8%

Unemployment Rate

26.4 min

Mean Commute Time

How ZIP 21230 ranks nationally

Baltimore, MD household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$91,842 Top 25% higher than 75% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). This entry sits in this band. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 72.7%
Bachelor's Degree or Higher 58.8%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

18,478

Total Housing Units

16,496

Occupied Units

1,982

Vacant Units

1.99

Avg Household Size

Occupancy Type

Owner 50.7%
Renter 49.3%

$330,100

Median Home Value

-26% vs state

$1,717

Median Rent

1945

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+1.6%

YoY Change (2024)

227

HPI Index (2000 = 100)

+127%

Total Change Since 2000

Home values in ZIP 21230 have increased 1.6% over the past year (2024). Since 2000, this ZIP has seen +127% cumulative appreciation.

Year Annual Change HPI Index
2020 +1.9% 194
2021 +5.6% 205
2022 +6.6% 218
2023 +2.3% 224
2024 +1.6% 227

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 1,201 business establishments in ZIP 21230, employing approximately 26,828 people with a combined annual payroll of $2,083,111,000.

1,201

Businesses

26,828

Employees

$2.1B

Annual Payroll

17

Industry Sectors

Industry Establishments % of Total
Accommodation and food services 183 15.2%
Professional, scientific, and technical services 150 12.5%
Other services (except public administration) 129 10.7%
Retail trade 110 9.2%
Wholesale trade 93 7.7%
Health care and social assistance 78 6.5%
Manufacturing 76 6.3%
Construction 75 6.2%
Real estate and rental and leasing 67 5.6%
Administrative and support and waste management and remediation services 51 4.3%
Finance and insurance 49 4.1%
Transportation and warehousing 46 3.8%
Arts, entertainment, and recreation 34 2.8%
Information 32 2.7%
Educational services 14 1.2%
Utilities 7 0.6%
Management of companies and enterprises 4 0.3%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 21230 vs 21201 →

ZIP 21230 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 21230 ranks #4 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 21230 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 21230 ranks the highest of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
21201 Baltimore, MD 16,972 2.0 mi
21202 Baltimore, MD 22,832 2.2 mi
21225 Brooklyn, MD 33,545 2.8 mi
21223 Baltimore, MD 26,366 2.1 mi
21231 Baltimore, MD 15,748 2.2 mi
21217 Baltimore, MD 37,111 3.0 mi
21211 Baltimore, MD 17,351 4.5 mi
21227 Halethorpe, MD 33,534 3.5 mi
21218 Baltimore, MD 49,796 4.5 mi
21229 Baltimore, MD 45,213 3.9 mi

More ZIP Codes in Baltimore County

21215 standard
Baltimore, MD
Pop: 60,161
21206 standard
Baltimore, MD
Pop: 50,846
21218 standard
Baltimore, MD
Pop: 49,796
21224 standard
Baltimore, MD
Pop: 49,134
21229 standard
Baltimore, MD
Pop: 45,213
21217 standard
Baltimore, MD
Pop: 37,111

Related Areas

Baltimore County Baltimore, MD Maryland

Frequently Asked Questions

What county is ZIP code 21230 in? ▼
ZIP code 21230 (Baltimore) is located in Baltimore County, Maryland. Baltimore County contains multiple ZIP codes, see the full list at /counties/baltimore-md-24510.
What is the population of ZIP code 21230? ▼
ZIP code 21230 in Baltimore, MD has a population of 33,568 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 21230? ▼
The median household income in ZIP 21230 is $91,842, which is 20% above the national average of $76,288.
What is the average home value in ZIP 21230? ▼
The median home value in ZIP 21230 is $330,100, which is 19% above the national average of $278,155.
What is the demographic makeup of ZIP 21230? ▼
The largest racial group in ZIP 21230 is White at 56.0%. Hispanic or Latino residents make up 11.6% of the population.
How many businesses are in ZIP code 21230? ▼
ZIP code 21230 has 1,201 business establishments employing approximately 26,828 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 21230? ▼
The top industries by establishment count in ZIP 21230 are: Accommodation and food services (183), Professional, scientific, and technical services (150), Other services (except public administration) (129). There are 17 industry sectors represented in total.
How have home values changed in ZIP code 21230? ▼
According to the FHFA House Price Index, home values in ZIP 21230 increased by 1.6% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 127%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 21230? ▼
In ZIP code 21230, 72.7% of residents aged 25+ have a high school diploma or higher, and 58.8% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 21230? ▼
The mean commute time for workers in ZIP code 21230 is 26.4 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 21230? ▼
In ZIP code 21230, approximately 50.7% of occupied housing units are owner-occupied and 49.3% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 21230? ▼
The poverty rate in ZIP code 21230 is 15.2% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.