What city is ZIP code 21163?

ZIP code 21163 is in Randallstown, MD (Baltimore County).

What county is ZIP code 21163 in?

ZIP code 21163 is mostly in Baltimore County, Maryland.

How many people live in ZIP code 21163?

About 7,539 people live in the 21163 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Checked Oct 26, 2026

ZIP Code 21163

Randallstown, MD, Baltimore County

Population

7,539

Land area

13.6sq mi

People per sq mi

553

City

Randallstown

ZIP 21163 and nearby ZIP codes

Full map

ZIP 21163 at a glance

Households here earn a median of $134,672 a year, 30% more than the Maryland figure of $103,678.
A typical owner-occupied home is valued at $602,800 (44% above Maryland) and median rent is $1,438 a month.

Local data for ZIP 21163

Counts from official public data

Housing and community stats

ZIP 21163, American Community Survey 2020-2024

Full profile

Median household income

$134,672

Poverty rate

7.6%

Median home value

$602,800

Prices -3.4% in a year

Median rent

$1,438/mo

Homeownership

85.0%

Bachelor's or higher

63.3%

Median age

45.4

Average commute

29.6 min

Income, education and commute

Economy and federal money

Businesses, pandemic loans and political donations

Details

Business establishments

139

ZIP Business Patterns 2023

Employees

843

$51.2M annual payroll

PPP loans

$8.3M

187 loans

Campaign donations

$65.3K

35% D, 15% R, 2026 cycle

PPP loans in this ZIP

Environment and hazard risk

ZIP 21163, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively Moderate

Top: winter weather

Storm events since 1996

2,155

Countywide, mostly thunderstorm wind

Flood insurance policies

3,097

1.2% of homes, county

July high / Jan low

87° / 27°F

Hazards, floods and storm history Check a flood zone

Health statistics

Share of adults in ZIP 21163, CDC PLACES estimates

All 40 measures

Obesity

28.7%

U.S. 33.3% -4.6 pts

Diabetes

12.3%

U.S. 12.1% about the same

Smoking

7.8%

U.S. 12.8% -5.0 pts

Uninsured (18-64)

5.1%

U.S. 11.1% -6.0 pts

Frequently asked questions

What city is ZIP code 21163?: ZIP code 21163 is in Randallstown, MD (Baltimore County).
What county is ZIP code 21163 in?: ZIP code 21163 is mostly in Baltimore County, Maryland.
How many people live in ZIP code 21163?: About 7,539 people live in the 21163 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.