What city is 21801 in?

21801 is a Salisbury, MD mailing address. By land area, 16% lies inside Salisbury; the rest is outside any Census-defined city or community.

What is the population of 21801?

About 30,088 people (±1,681), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 31,183.

What is the median household income in 21801?

$71,313 (±$8,932), 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 21801?

23 USPS carrier routes with 12,397 residential and 1,464 business mailboxes (13,861 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 21801?

The closest, measured center to center: 21826 (3.5 mi, Fruitland), 21810 (4.1 mi, Allen), 21822 (4.3 mi, Eden), 21830 (4.5 mi, Quantico), 21856 (6.4 mi, Quantico) and 21804 (8.3 mi, Salisbury).

21801 ZIP Code, Salisbury, MD

21801 is a ZIP code in Salisbury, Maryland in Wicomico County. It covers 40 square miles of land. The closest ZIP codes are 21826, 21810 and 21822. 30,088 people live here in 11,348 households. With about 750 people per square mile it is lightly settled, and owners and renters are mixed (58% own). Median household income is $71,313, below the Maryland median of $103,678.

Quick facts

Mailing city: Salisbury, MD
County: Wicomico County
Land area: 40 sq mi
Population: 30,088
Median household income: $71,313
Carrier routes: 23 (12,397 homes)

Key figures

Measure	Value
Residents	30,088
Households	11,348
Median household income	$71,313
Income per person	$40,266
Median age	36.9
Homeowners	58.2%
Median home value	$327,700
Median rent	$1,114
Bachelor's degree or higher	33.5%
Average commute (minutes)	22.6
Households with kids under 18	26.6%
Moved in the past year	18.1%
Below the poverty line	15.6%
Broadband internet	86.6%
Speak a non-English language at home	14.4%

Household income

% of households	Value
<$10K	5.1%
$10–15K	2.8%
$15–25K	8.7%
$25–35K	11.0%
$35–50K	11.2%
$50–75K	13.9%
$75–100K	12.3%
$100–150K	12.2%
$150–200K	9.8%
$200K+	12.9%

Age

% of all residents	Value
<10	13.4%
10–19	15.4%
20–24	8.7%
25–34	10.4%
35–44	10.8%
45–54	9.3%
55–64	13.5%
65–74	11.5%
75+	6.9%

Tenure

% of housing units	Value
Owned, with mortgage	38.0%
Owned outright	16.5%
Rented	38.0%
Vacant	7.6%

Type of building

% of housing units	Value
Detached house	71.7%
Townhome	4.1%
2–4 units	10.4%
5–19 units	5.7%
20+ units	5.7%
Mobile / other	2.4%

Businesses in 21801

1,141 business establishments with 20,295 employees (ZIP Codes Business Patterns 2023).

Retail Trade: 195
Health Care and Social Assistance: 144
Accommodation and Food Services: 130
Other Services (except Public Administration): 110
Professional, Scientific, and Technical Services: 105
Construction: 83
Finance and Insurance: 67
Wholesale Trade: 60

EDDM carrier routes

21801 has 23 USPS carrier routes with 12,397 residential and 1,464 business mailboxes. Open the EDDM route map.

Carrier routes in 21801

21801 has 23 USPS carrier routes (12 city (C), 11 rural (R)) with 12,397 residential and 1,464 business mailboxes. Routes range from 68 homes (C019) to 871 homes (C008); the median route has 583 homes. The Census counted 11,348 households in 21801 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	4
250–499	5
500–749	11
750–999	3
1,000–1,499	0
1,500+	0

Best routes in 21801 for…

Most businesses

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

Route R019 — USPS business mailboxes 425, 196 homes
Route C006 — USPS business mailboxes 265, 226 homes
Route C019 — USPS business mailboxes 226, 68 homes
Route C023 — USPS business mailboxes 103, 387 homes
Route C029 — USPS business mailboxes 73, 492 homes

Select these 5 routes on the route map

Every carrier route in 21801

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C002	City	622	59	$29,004	—	—	—
C006	City	226	265	$51,271	—	—	—
C007	City	417	5	$86,702	—	—	—
C008	City	871	22	$29,268	—	—	—
C011	City	475	4	$110,522	—	—	—
C018	City	691	54	$38,368	—	—	—
C019	City	68	226	$75,898	—	—	—
C022	City	178	0	$42,054	—	—	—
C023	City	387	103	$81,568	—	—	—
C024	City	334	3	$75,898	—	—	—
C025	City	539	17	$38,368	—	—	—
C029	City	492	73	$51,271	—	—	—
R001	Rural	703	24	$110,522	—	—	—
R005	Rural	583	40	$16,914	—	—	—
R010	Rural	681	45	$59,638	—	—	—
R012	Rural	619	1	$86,906	—	—	—
R016	Rural	580	3	$128,971	—	—	—
R018	Rural	640	0	$92,569	—	—	—
R019	Rural	196	425	$42,054	—	—	—
R022	Rural	690	10	$92,569	—	—	—
R025	Rural	727	7	$36,271	—	—	—
R027	Rural	834	17	$92,569	—	—	—
R029	Rural	844	61	$16,914	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 21801 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

21826 — Fruitland city, MD (3.5 mi)
21810 — Allen CDP, MD (4.1 mi)
21822 — Eden CDP, MD (4.3 mi)
21830 — Quantico CDP, MD (4.5 mi)
21856 — Quantico CDP, MD (6.4 mi)
21804 — Salisbury city, MD (8.3 mi)
21837 — Mardela Springs town, MD (8.7 mi)
21865 — Tyaskin CDP, MD (9.3 mi)

Areas that include 21801

Salisbury, MD ZIP codes — 2 ZIP codes
Wicomico County ZIP codes — 16 ZIP codes
Maryland ZIP code data

Where it ranks

Mail every home in 21801

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) 21801, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 21801 in?: 21801 is a Salisbury, MD mailing address. By land area, 16% lies inside Salisbury; the rest is outside any Census-defined city or community.
What county is 21801 in?: 21801 is in Wicomico County.
What is the population of 21801?: About 30,088 people (±1,681), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 31,183.
What is the median household income in 21801?: $71,313 (±$8,932), 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 21801?: 23 USPS carrier routes with 12,397 residential and 1,464 business mailboxes (13,861 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 21801?: The closest, measured center to center: 21826 (3.5 mi, Fruitland), 21810 (4.1 mi, Allen), 21822 (4.3 mi, Eden), 21830 (4.5 mi, Quantico), 21856 (6.4 mi, Quantico) and 21804 (8.3 mi, Salisbury).

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