Residential delivery area · Maryland
ZIP Code 21666: Stevensville, MD
ZIP code 21666 uses the postal name Stevensville, Maryland and lies entirely in Queen Anne's County (Census 2020 ZIP-county file). About 14,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $123,645 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Stevensville (30%) and Romancoke (6%), and 2% in smaller places; 63% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Stevensville · its only residential ZIP
- County
- Queen Anne's County
- Census places
- Stevensville (30%) census-designated place; Romancoke (6%) census-designated place
- Metro area
- Baltimore-Columbia-Towson, MD
- House district
- MD-1 119th Congress
- State
- Maryland
- Time zone
- Eastern
- Land area
- 21.8 sq mi · 659 people per sq mi
Where is ZIP code 21666?
21666 centers on 38.940°, -76.336° and covers 21.8 square miles of land plus 11.0 of water. It borders 1 ZIP code: 21619.
The map draws ZIP code areas only. For the streets inside 21666, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 21666 compare with the rest of Queen Anne's County?
| Measure | 21666 | In Queen Anne's County | In MD |
|---|---|---|---|
| People (ACS 2020-2024) | 14,394 | 1st of 16 | 154th of 477 |
| Median household income | $124k | 3rd of 11 | 112th of 293 |
| Median home value | $494k | 2nd of 10 | 95th of 320 |
Its median household income is higher than in 92% of U.S. residential ZIP codes, and it is denser than 74% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 21666?
The 2020 Census counted 12,848 people in 21666; the ACS, which samples households over 2020-2024, estimates 14,394. Between the 2010 and 2020 censuses its population grew 4.4% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 14,394
- 2020 Census count
- 12,848+4.4% since 2010 (12,309)
- Households
- 5,555
- Median age
- 46.0
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 21666?
Of the 14,394 people the ACS estimates in 21666, 20.1% are under 18 and 22.5% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (87.1%).
- Under 1820.1%
- 18 to 6457.4%
- 65 and older22.5%
- White, not Hispanic87.1%
- Other or two or more7.1%
- Black, not Hispanic3.7%
- Asian, not Hispanic1.4%
- Hispanic or Latino0.7%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 21666 earn?
Median household income is $123,645 (ACS 2020-2024), the 3rd highest of the 11 ranked ZIP codes in Queen Anne's County. It is not measurably different from 2015-2019 ($126,676 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $123,645
- Income per person
- $61,123
- Below the poverty line
- 3.9%
- Unemployed (of the labor force)
- 4.5%
- Adults 25+ with a bachelor's degree
- 40.9%
- Adjusted gross income per tax return, 2022
- $123,9707,090 returns; wages 65% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 21666?
FHFA's house price index for 21666, built from repeat sales and appraisals of the same homes, rose 57% from 2015 to 2025 and rose 38% from 2020 to 2025, and moved +0.1% in 2025.
- Median home value (owners' estimate)
- $494,300
- Median gross rent
- $1,764
- Homes owned by their occupants
- 84.6%
- Housing units
- 5,835
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 21666?
439 business establishments had a location in this ZIP code in 2023, 10 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction71
- Professional, scientific, and technical services58
- Health care and social assistance48
- Other services (except public administration)42
- Retail trade36
- Administrative and support and waste management and remediation services34
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 21666?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 21619 | Chester | 6,152 | $108k | 3.8 mi |
| 21638 | Grasonville | 5,420 | $140k | 6.9 mi (near) |
| 21409 | Annapolis | 20,289 | $147k | 7.9 mi (near) |
| 21402 | Annapolis | 4,303 | $81k | 8.0 mi (near) |
| 21624 | Claiborne | 162 | $89k | 8.0 mi (near) |
| 21403 | Annapolis | 32,681 | $123k | 8.3 mi (near) |
| 21647 | McDaniel | 320 | $114k | 10.3 mi (near) |
| 21658 | Queenstown | 3,632 | $128k | 10.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.