21851 ZIP Code, Pocomoke City, MD
21851 is a ZIP code in Pocomoke City, Maryland — mostly in Worcester County (80% of its land), with smaller parts in Somerset County. It covers 104 square miles of land. The closest ZIP codes are 23415, 21864 and 23395. 7,297 people live here in 3,252 households. It is rural, with fewer than 100 people per square mile, and owners and renters are mixed (65% own). Median household income is $53,162, well below the Maryland median of $103,678.
Quick facts
- Mailing city: Pocomoke City, MD
- County: Worcester County
- Land area: 104 sq mi
- Population: 7,297
- Median household income: $53,162
- Carrier routes: 7 (3,237 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 7,297 |
| Households | 3,252 |
| Median household income | $53,162 |
| Income per person | $37,655 |
| Median age | 44.1 |
| Homeowners | 64.7% |
| Median home value | $206,700 |
| Median rent | $848 |
| Bachelor's degree or higher | 22.5% |
| Average commute (minutes) | 24.4 |
| Households with kids under 18 | 25.3% |
| Moved in the past year | 14.9% |
| Below the poverty line | 12.2% |
| Broadband internet | 89.0% |
| Speak a non-English language at home | 5.5% |
Household income
| % of households | Value |
|---|---|
| <$10K | 8.1% |
| $10–15K | 5.4% |
| $15–25K | 14.6% |
| $25–35K | 6.1% |
| $35–50K | 12.5% |
| $50–75K | 13.3% |
| $75–100K | 11.9% |
| $100–150K | 15.6% |
| $150–200K | 8.8% |
| $200K+ | 3.8% |
Age
| % of all residents | Value |
|---|---|
| <10 | 10.8% |
| 10–19 | 11.3% |
| 20–24 | 5.8% |
| 25–34 | 13.0% |
| 35–44 | 10.4% |
| 45–54 | 14.9% |
| 55–64 | 12.9% |
| 65–74 | 12.2% |
| 75+ | 8.6% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 32.3% |
| Owned outright | 26.3% |
| Rented | 30.9% |
| Vacant | 10.6% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 78.6% |
| Townhome | 5.9% |
| 2–4 units | 3.7% |
| 5–19 units | 6.9% |
| 20+ units | 2.5% |
| Mobile / other | 2.6% |
Businesses in 21851
189 business establishments with 2,813 employees (ZIP Codes Business Patterns 2023).
- Retail Trade: 41
- Other Services (except Public Administration): 27
- Accommodation and Food Services: 23
- Health Care and Social Assistance: 21
- Construction: 15
- Finance and Insurance: 12
- Wholesale Trade: 10
- Real Estate and Rental and Leasing: 8
EDDM carrier routes
21851 has 7 USPS carrier routes with 3,237 residential and 269 business mailboxes. Open the EDDM route map.
Carrier routes in 21851
21851 has 7 USPS carrier routes (3 city (C), 4 rural (R)) with 3,237 residential and 269 business mailboxes. Routes range from 247 homes (R003) to 730 homes (C001); the median route has 479 homes. The Census counted 3,252 households in 21851 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 1 |
| 250–499 | 4 |
| 500–749 | 2 |
| 750–999 | 0 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 21851 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C003 — USPS business mailboxes 77, 533 homes
- Route C001 — USPS business mailboxes 56, 730 homes
- Route R004 — USPS business mailboxes 54, 496 homes
- Route R002 — USPS business mailboxes 46, 457 homes
- Route C002 — USPS business mailboxes 17, 295 homes
Select these 5 routes on the route map
Every carrier route in 21851
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C001 | City | 730 | 56 | $81,080 | — | — | — |
| C002 | City | 295 | 17 | $39,147 | — | — | — |
| C003 | City | 533 | 77 | $79,569 | — | — | — |
| R001 | Rural | 479 | 14 | $65,638 | — | — | — |
| R002 | Rural | 457 | 46 | $37,900 | — | — | — |
| R003 | Rural | 247 | 5 | $81,080 | — | — | — |
| R004 | Rural | 496 | 54 | $55,853 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 21851 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
- 23415 — Wattsville CDP, VA (7.1 mi)
- 21864 — Stockton CDP, MD (8.1 mi)
- 23395 — Horntown CDP, VA (9.1 mi)
- 21829 — Girdletree CDP, MD (9.5 mi)
- 23488 (9.5 mi)
- 23416 — Oak Hall CDP, VA (9.7 mi)
- 23356 — Captains Cove CDP, VA (9.8 mi)
- 21890 (10.2 mi)
Areas that include 21851
- Pocomoke City, MD ZIP codes — 1 ZIP code
- West Pocomoke, MD ZIP codes — 1 ZIP code
- Somerset County ZIP codes — 11 ZIP codes
- Worcester County ZIP codes — 12 ZIP codes
- Maryland ZIP code data
Where it ranks
- No. 4 of 7: highest share of households with children in Worcester County
- No. 2 of 7: highest share of residents who moved in during the past year in Worcester County
- No. 4 of 7: lowest median age in Worcester County
- No. 4 of 7: highest median age in Worcester County
- No. 5 of 7: fastest population growth in Worcester County
Mail every home in 21851
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) 21851, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 21851 in?
- 21851 is a Pocomoke City, MD mailing address. By land area, 8% lies inside West Pocomoke and 4% lies inside Pocomoke City; the rest is outside any Census-defined city or community.
- What county is 21851 in?
- 21851 is mostly in Worcester County (80% of its land), with smaller parts in Somerset County.
- What is the population of 21851?
- About 7,297 people (±606), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 7,229.
- What is the median household income in 21851?
- $53,162 (±$24,036), 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 21851?
- 7 USPS carrier routes with 3,237 residential and 269 business mailboxes (3,506 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 21851?
- The closest, measured center to center: 23415 (7.1 mi, Wattsville), 21864 (8.1 mi, Stockton), 23395 (9.1 mi, Horntown), 21829 (9.5 mi, Girdletree), 23488 (9.5 mi) and 23416 (9.7 mi, Oak Hall).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.