What city is 21054 in?

21054 is a Gambrills, MD mailing address. By land area, 43% lies inside Odenton, 7% lies inside Crofton and 4% lies inside Gambrills; the rest is outside any Census-defined city or community.

What county is 21054 in?

21054 is in Anne Arundel County.

What is the population of 21054?

About 16,386 people (±2,676), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 13,970.

What is the median household income in 21054?

$163,825 (±$23,418), compared with $103,678 for Maryland as a whole. Half the households in the ZIP code earn more and half earn less.

How many carrier routes and mailboxes are in 21054?

9 USPS carrier routes with 5,424 residential and 466 business mailboxes (5,890 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 21054?

The closest, measured center to center: 21113 (1.3 mi, Odenton), 21114 (3.2 mi, Crofton), 20755 (4.2 mi, Fort Meade), 21108 (4.4 mi, Severna Park), 21144 (4.5 mi, Severn) and 21032 (5 mi, Crownsville).

21054 ZIP Code, Gambrills, MD

21054 is a ZIP code in Gambrills, Maryland in Anne Arundel County. It covers 16 square miles of land. The closest ZIP codes are 21113, 21114 and 20755. 16,386 people live here in 5,497 households. At about 1,030 people per square mile it has suburban density, and most homes are owner-occupied (84%). Median household income is $163,825, well above the Maryland median of $103,678; 43% of households have children under 18.

Quick facts

Mailing city: Gambrills, MD
County: Anne Arundel County
Land area: 16 sq mi
Population: 16,386
Median household income: $163,825
Carrier routes: 9 (5,424 homes)

Key figures

Measure	Value
Residents	16,386
Households	5,497
Median household income	$163,825
Income per person	$63,168
Median age	40.9
Homeowners	84.2%
Median home value	$611,000
Median rent	$2,444
Bachelor's degree or higher	61.2%
Average commute (minutes)	27.5
Households with kids under 18	42.8%
Moved in the past year	8.8%
Below the poverty line	3.2%
Broadband internet	97.8%
Speak a non-English language at home	16.1%

Household income

% of households	Value
<$10K	5.9%
$10–15K	0.7%
$15–25K	0.1%
$25–35K	3.5%
$35–50K	2.7%
$50–75K	4.7%
$75–100K	8.1%
$100–150K	16.1%
$150–200K	15.1%
$200K+	43.2%

Age

% of all residents	Value
<10	13.2%
10–19	17.7%
20–24	5.8%
25–34	5.1%
35–44	18.8%
45–54	12.7%
55–64	11.2%
65–74	8.2%
75+	7.2%

Tenure

% of housing units	Value
Owned, with mortgage	62.0%
Owned outright	21.7%
Rented	15.6%
Vacant	0.7%

Type of building

% of housing units	Value
Detached house	68.3%
Townhome	14.4%
2–4 units	0.3%
5–19 units	3.3%
20+ units	13.5%
Mobile / other	0.2%

Businesses in 21054

529 business establishments with 8,593 employees (ZIP Codes Business Patterns 2023).

Retail Trade: 77
Accommodation and Food Services: 76
Health Care and Social Assistance: 75
Professional, Scientific, and Technical Services: 73
Other Services (except Public Administration): 59
Construction: 40
Finance and Insurance: 23
Real Estate and Rental and Leasing: 19

EDDM carrier routes

21054 has 9 USPS carrier routes with 5,424 residential and 466 business mailboxes. Open the EDDM route map.

Carrier routes in 21054

21054 has 9 USPS carrier routes (9 rural (R)) with 5,424 residential and 466 business mailboxes. Routes range from 416 homes (R007) to 898 homes (R009); the median route has 610 homes. The Census counted 5,497 households in 21054 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	2
500–749	6
750–999	1
1,000–1,499	0
1,500+	0

Best routes in 21054 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

Route R005 — USPS business mailboxes 155, 470 homes
Route R007 — USPS business mailboxes 151, 416 homes
Route R009 — USPS business mailboxes 103, 898 homes
Route R002 — USPS business mailboxes 23, 565 homes
Route R001 — USPS business mailboxes 20, 614 homes

Select these 5 routes on the route map

Every carrier route in 21054

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
R001	Rural	614	20	$121,237	—	—	—
R002	Rural	565	23	$175,301	—	—	—
R003	Rural	676	0	$143,588	—	—	—
R004	Rural	671	4	$171,306	—	—	—
R005	Rural	470	155	$99,405	—	—	—
R006	Rural	504	7	$182,860	—	—	—
R007	Rural	416	151	$175,301	—	—	—
R008	Rural	610	3	$200,001+	—	—	—
R009	Rural	898	103	$99,405	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 21054 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

21113 — Odenton CDP, MD (1.3 mi)
21114 — Crofton CDP, MD (3.2 mi)
20755 — Fort Meade CDP, MD (4.2 mi)
21108 — Severna Park CDP, MD (4.4 mi)
21144 — Severn CDP, MD (4.5 mi)
21032 — Crownsville CDP, MD (5 mi)
20715 — Bowie city, MD (5.4 mi)
20724 — Maryland City CDP, MD (5.6 mi)

Areas that include 21054

Odenton, MD ZIP codes — 2 ZIP codes
Crofton, MD ZIP codes — 2 ZIP codes
Gambrills, MD ZIP codes — 3 ZIP codes
Anne Arundel County ZIP codes — 41 ZIP codes
Maryland ZIP code data

Where it ranks

Mail every home in 21054

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 21054, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 21054 in?: 21054 is a Gambrills, MD mailing address. By land area, 43% lies inside Odenton, 7% lies inside Crofton and 4% lies inside Gambrills; the rest is outside any Census-defined city or community.
What county is 21054 in?: 21054 is in Anne Arundel County.
What is the population of 21054?: About 16,386 people (±2,676), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 13,970.
What is the median household income in 21054?: $163,825 (±$23,418), compared with $103,678 for Maryland as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 21054?: 9 USPS carrier routes with 5,424 residential and 466 business mailboxes (5,890 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 21054?: The closest, measured center to center: 21113 (1.3 mi, Odenton), 21114 (3.2 mi, Crofton), 20755 (4.2 mi, Fort Meade), 21108 (4.4 mi, Severna Park), 21144 (4.5 mi, Severn) and 21032 (5 mi, Crownsville).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.