What city is 21716 in?

21716 is a Brunswick, MD mailing address. By land area, 100% lies inside Brunswick.

What is the population of 21716?

About 7,200 people (±464), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 6,753.

What is the median household income in 21716?

$109,382 (±$13,182), 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 21716?

6 USPS carrier routes with 3,371 residential and 124 business mailboxes (3,495 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 21716?

The closest, measured center to center: 21758 (2.9 mi, Garretts Mill), 20180 (3.4 mi, Lovettsville), 21755 (4.3 mi, Jefferson), 21715 (4.6 mi, Brownsville), 21718 (5.2 mi, Burkittsville) and 21777 (5.9 mi, Point of Rocks).

21716 ZIP Code, Brunswick, MD

21716 is a ZIP code in Brunswick, Maryland in Frederick County. It covers 2.7 square miles of land. The closest ZIP codes are 21758, 20180 and 21755. 7,200 people live here in 2,924 households. At about 2,636 people per square mile it has suburban density, and most homes are owner-occupied (85%). Median household income is $109,382, close to the Maryland median of $103,678.

Quick facts

Mailing city: Brunswick, MD
County: Frederick County
Land area: 2.7 sq mi
Population: 7,200
Median household income: $109,382
Carrier routes: 6 (3,371 homes)

Key figures

Measure	Value
Residents	7,200
Households	2,924
Median household income	$109,382
Income per person	$55,483
Median age	38.5
Homeowners	85.1%
Median home value	$361,300
Median rent	$1,195
Bachelor's degree or higher	33.6%
Average commute (minutes)	38.5
Households with kids under 18	26.6%
Moved in the past year	8.5%
Below the poverty line	6.7%
Broadband internet	88.9%
Speak a non-English language at home	11.9%

Household income

% of households	Value
<$10K	6.3%
$10–15K	1.9%
$15–25K	2.1%
$25–35K	1.8%
$35–50K	8.7%
$50–75K	12.6%
$75–100K	10.9%
$100–150K	20.9%
$150–200K	12.1%
$200K+	22.7%

Age

% of all residents	Value
<10	13.1%
10–19	11.3%
20–24	4.4%
25–34	14.1%
35–44	15.9%
45–54	13.5%
55–64	13.3%
65–74	8.2%
75+	6.2%

Tenure

% of housing units	Value
Owned, with mortgage	67.5%
Owned outright	13.7%
Rented	14.0%
Vacant	4.9%

Type of building

% of housing units	Value
Detached house	69.5%
Townhome	21.4%
2–4 units	5.1%
5–19 units	2.1%
20+ units	1.2%
Mobile / other	0.7%

Businesses in 21716

101 business establishments with 828 employees (ZIP Codes Business Patterns 2023).

Other Services (except Public Administration): 20
Retail Trade: 16
Accommodation and Food Services: 16
Health Care and Social Assistance: 14
Professional, Scientific, and Technical Services: 8
Construction: 6
Finance and Insurance: 4
Real Estate and Rental and Leasing: 4

EDDM carrier routes

21716 has 6 USPS carrier routes with 3,371 residential and 124 business mailboxes. Open the EDDM route map.

Carrier routes in 21716

21716 has 6 USPS carrier routes (4 city (C), 2 rural (R)) with 3,371 residential and 124 business mailboxes. Routes range from 300 homes (C005) to 775 homes (R006); the median route has 550 homes. The Census counted 2,924 households in 21716 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	1
500–749	4
750–999	1
1,000–1,499	0
1,500+	0

Best routes in 21716 for…

Most businesses

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

Route C003 — USPS business mailboxes 40, 695 homes
Route C001 — USPS business mailboxes 38, 535 homes
Route R006 — USPS business mailboxes 22, 775 homes
Route C005 — USPS business mailboxes 14, 300 homes
Route C002 — USPS business mailboxes 10, 565 homes

Select these 5 routes on the route map

Every carrier route in 21716

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C001	City	535	38	$132,919	—	—	—
C002	City	565	10	$113,035	—	—	—
C003	City	695	40	$79,316	—	—	—
C005	City	300	14	$76,887	—	—	—
R004	Rural	501	0	$133,154	—	—	—
R006	Rural	775	22	$113,035	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 21716 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

21758 — Garretts Mill CDP, MD (2.9 mi)
20180 — Lovettsville town, VA (3.4 mi)
21755 — Jefferson CDP, MD (4.3 mi)
21715 — Brownsville CDP, MD (4.6 mi)
21718 — Burkittsville town, MD (5.2 mi)
21777 — Point of Rocks CDP, MD (5.9 mi)
21779 — Gapland CDP, MD (7.5 mi)
21790 — Point of Rocks CDP, MD (7.6 mi)

Areas that include 21716

Brunswick, MD ZIP codes — 2 ZIP codes
Frederick County ZIP codes — 33 ZIP codes
Maryland ZIP code data

Where it ranks

Mail every home in 21716

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) 21716, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 21716 in?: 21716 is a Brunswick, MD mailing address. By land area, 100% lies inside Brunswick.
What county is 21716 in?: 21716 is in Frederick County.
What is the population of 21716?: About 7,200 people (±464), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 6,753.
What is the median household income in 21716?: $109,382 (±$13,182), 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 21716?: 6 USPS carrier routes with 3,371 residential and 124 business mailboxes (3,495 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 21716?: The closest, measured center to center: 21758 (2.9 mi, Garretts Mill), 20180 (3.4 mi, Lovettsville), 21755 (4.3 mi, Jefferson), 21715 (4.6 mi, Brownsville), 21718 (5.2 mi, Burkittsville) and 21777 (5.9 mi, Point of Rocks).

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