Residential delivery area · Maryland
ZIP Code 21405: Annapolis, MD
ZIP code 21405 uses the postal name Annapolis, Maryland and lies entirely in Anne Arundel County (Census 2020 ZIP-county file). About 500 people live there (Census Bureau, ACS 2020-2024), the least populous of Annapolis's 5 residential ZIP codes. Median household income is $160,703 (Census Bureau, ACS 2020-2024). Its land lies outside any incorporated or census-designated place.
- ACS2020-24
- Census2020
- FHFA2020
- ZBP2023
Where is ZIP code 21405?
21405 centers on 39.028°, -76.548° and covers 1.0 square miles of land plus 0.9 of water. It borders 3 ZIP codes: 21401, 21032, 21012.
The map draws ZIP code areas only. For the streets inside 21405, 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 21405 compare with the rest of Annapolis?
| Measure | 21405 | In Annapolis | In Anne Arundel County | In MD |
|---|---|---|---|---|
| People (ACS 2020-2024) | 495 | 5th of 5 | 39th of 42 | 393rd of 477 |
| Median household income | $161k | not ranked | not ranked | not ranked |
| Median home value | $986k | not ranked | not ranked | not ranked |
21405's income and home value are not ranked: it has fewer than 1,000 residents (495). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 72% of 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 21405?
The 2020 Census counted 622 people in 21405; the ACS, which samples households over 2020-2024, estimates 495. Between the 2010 and 2020 censuses its population grew 14.3% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 495±133 (90% margin)
- 2020 Census count
- 622+14.3% since 2010 (544)
- Households
- 221
- Median age
- 64.5
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 21405?
Of the 495 people the ACS estimates in 21405, 9.1% are under 18 and 48.1% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (96.2%).
- Under 189.1%
- 18 to 6442.8%
- 65 and older48.1%
- White, not Hispanic96.2%
- Other or two or more3.8%
- Hispanic or Latino0.0%
- Black, not Hispanic0.0%
- Asian, not Hispanic0.0%
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 21405 earn?
Median household income is $160,703 (ACS 2020-2024). It is not measurably different from 2015-2019 ($135,407 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $160,703±$37,654
- Income per person
- $79,136
- Below the poverty line
- 12.1%
- Unemployed (of the labor force)
- 4.1%
- Adults 25+ with a bachelor's degree
- 74.9%
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 21405?
- Median home value (owners' estimate)
- $986,100
- Median gross rent
- –
- Homes owned by their occupants
- 95.0%
- Housing units
- 338
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 21405?
9 business establishments had a location in this ZIP code in 2023, 3 more than in 2018 (ZIP Code Business Patterns).
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 21405?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 21401 | Annapolis | 38,629 | $123k | 2.8 mi |
| 21032 | Crownsville | 8,850 | $169k | 3.0 mi |
| 21012 | Arnold | 22,570 | $139k | 3.1 mi |
| 21146 | Severna Park | 28,591 | $172k | 3.6 mi (near) |
| 21402 | Annapolis | 4,303 | $81k | 5.0 mi (near) |
| 21140 | Riva | 4,417 | $170k | 5.7 mi (near) |
| 21409 | Annapolis | 20,289 | $147k | 5.7 mi (near) |
| 21108 | Millersville | 18,643 | $151k | 5.8 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.