21866 ZIP Code, Smith Island, MD
21866 is a ZIP code in Smith Island, Maryland in Somerset County. It covers 0.1 square miles of land. The closest ZIP codes are 21824, 23440 and 21817. 81 people live here in 53 households, fewer than in most Maryland ZIP codes. With about 659 people per square mile it is lightly settled, and most homes are owner-occupied (100%). Median household income is $95,250, close to the Maryland median of $103,678; the median age is 60.6, older than most ZIP codes.
Quick facts
- Mailing city: Smith Island, MD
- County: Somerset County
- Land area: 0.1 sq mi
- Population: 81
- Median household income: $95,250
Key figures
| Measure | Value |
|---|---|
| Residents | 81 |
| Households | 53 |
| Median household income | $95,250 |
| Income per person | $58,337 |
| Median age | 60.6 |
| Homeowners | 100.0% |
| Median home value | $177,500 |
| Median rent | not published |
| Bachelor's degree or higher | 4.9% |
| Average commute (minutes) | not published |
| Households with kids under 18 | 0.0% |
| Moved in the past year | 0.0% |
| Below the poverty line | 18.5% |
| Broadband internet | 83.0% |
| Speak a non-English language at home | 6.2% |
Household income
| % of households | Value |
|---|---|
| <$10K | 0.0% |
| $10–15K | 0.0% |
| $15–25K | 11.3% |
| $25–35K | 0.0% |
| $35–50K | 0.0% |
| $50–75K | 0.0% |
| $75–100K | 64.2% |
| $100–150K | 24.5% |
| $150–200K | 0.0% |
| $200K+ | 0.0% |
Age
| % of all residents | Value |
|---|---|
| <10 | 0.0% |
| 10–19 | 0.0% |
| 20–24 | 0.0% |
| 25–34 | 6.2% |
| 35–44 | 4.9% |
| 45–54 | 0.0% |
| 55–64 | 65.4% |
| 65–74 | 23.5% |
| 75+ | 0.0% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 46.6% |
| Owned outright | 26.0% |
| Rented | 0.0% |
| Vacant | 27.4% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 74.0% |
| Townhome | 0.0% |
| 2–4 units | 0.0% |
| 5–19 units | 0.0% |
| 20+ units | 0.0% |
| Mobile / other | 26.0% |
EDDM carrier routes
See every USPS carrier route in 21866 with residential and business mailbox counts on the route map. Open the EDDM route map.
Nearby ZIP codes
- 21824 — Smith Island CDP, MD (1.5 mi)
- 23440 — Tangier town, VA (10 mi)
- 21817 — Crisfield city, MD (10.1 mi)
- 21821 — Dames Quarter CDP, MD (14.8 mi)
- 21838 (15.8 mi)
- 21867 — Fairmount CDP, MD (15.8 mi)
- 22539 (16.2 mi)
- 23427 — Saxis town, VA (17.2 mi)
Areas that include 21866
- Smith Island, MD ZIP codes — 2 ZIP codes
- Somerset County ZIP codes — 11 ZIP codes
- Maryland ZIP code data
Mail every home in 21866
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) 21866, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 21866 in?
- 21866 is a Smith Island, MD mailing address. By land area, 100% lies inside Smith Island.
- What county is 21866 in?
- 21866 is in Somerset County.
- What is the population of 21866?
- About 81 people (±59), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 36.
- What is the median household income in 21866?
- $95,250 (±$23,614), 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 21866?
- EDDM2GO's stored route library does not include 21866 yet. The EDDM route map loads its carrier routes and mailbox counts when you search the ZIP code.
- What ZIP codes are near 21866?
- The closest, measured center to center: 21824 (1.5 mi, Smith Island), 23440 (10 mi, Tangier), 21817 (10.1 mi, Crisfield), 21821 (14.8 mi, Dames Quarter), 21838 (15.8 mi) and 21867 (15.8 mi, Fairmount).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.