Residential delivery area · Maryland
ZIP Code 21403: Annapolis Neck (Annapolis), MD
ZIP code 21403 is in Annapolis Neck (postal name Annapolis), Maryland, entirely in Anne Arundel County (Census 2020 ZIP-county file). About 33,000 people live there (Census Bureau, ACS 2020-2024), the 2nd most populous of Annapolis's 5 residential ZIP codes. Median household income is $123,329 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Annapolis Neck (63%), Annapolis (37%) and Highland Beach (under 1%).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Annapolis · 5 residential ZIPs
- County
- Anne Arundel County
- Census places
- Annapolis Neck (63%) census-designated place; Annapolis (37%); Highland Beach (under 1%)
- Neighborhoods
- Annapolis Overlook, Captains Walk, Colony Hills, Eastport Terrace, Gentry, Georgetown East and 11 more GeoNames
- Metro area
- Baltimore-Columbia-Towson, MD
- House district
- MD-3 119th Congress
- State
- Maryland
- Time zone
- Eastern
- Land area
- 9.3 sq mi · 3,526 people per sq mi
Where is ZIP code 21403?
21403 centers on 38.942°, -76.490° and covers 9.3 square miles of land plus 4.8 of water. It borders 3 ZIP codes: 21037, 21402, 21401.
The map draws ZIP code areas only. For the streets inside 21403, 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); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.
How does 21403 compare with the rest of Annapolis?
| Measure | 21403 | In Annapolis | In Anne Arundel County | In MD |
|---|---|---|---|---|
| People (ACS 2020-2024) | 32,681 | 2nd of 5 | 8th of 42 | 74th of 477 |
| Median household income | $123k | 3rd of 3 | 20th of 30 | 114th of 293 |
| Median home value | $583k | 2nd of 3 | 10th of 32 | 57th of 320 |
Its median household income is higher than in 91% of U.S. residential ZIP codes, and it is denser than 90% 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 21403?
The 2020 Census counted 31,521 people in 21403; the ACS, which samples households over 2020-2024, estimates 32,681. Between the 2010 and 2020 censuses its population grew 4.1% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 32,681
- 2020 Census count
- 31,521+4.1% since 2010 (30,269)
- Households
- 14,359
- Median age
- 45.3
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 21403?
Of the 32,681 people the ACS estimates in 21403, 18.7% are under 18 and 22.2% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (65.1%), then Hispanic or Latino (16.1%).
- Under 1818.7%
- 18 to 6459.1%
- 65 and older22.2%
- White, not Hispanic65.1%
- Hispanic or Latino16.1%
- Black, not Hispanic11.5%
- Other or two or more5.7%
- Asian, not Hispanic1.5%
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 21403 earn?
Median household income is $123,329 (ACS 2020-2024), the 20th highest of the 30 ranked ZIP codes in Anne Arundel County. It is not measurably different from 2015-2019 ($114,797 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $123,329
- Income per person
- $78,015
- Below the poverty line
- 5.8%
- Unemployed (of the labor force)
- 2.6%
- Adults 25+ with a bachelor's degree
- 56.4%
- Adjusted gross income per tax return, 2022
- $138,24216,830 returns; wages 57% 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 21403?
FHFA's house price index for 21403, built from repeat sales and appraisals of the same homes, rose 61% from 2015 to 2025 and rose 42% from 2020 to 2025, and moved +0.5% in 2025.
- Median home value (owners' estimate)
- $582,500
- Median gross rent
- $1,942
- Homes owned by their occupants
- 69.1%
- Housing units
- 15,460
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 21403?
678 business establishments had a location in this ZIP code in 2023, 34 more than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services136
- Other services (except public administration)77
- Retail trade71
- Construction62
- Accommodation and food services50
- Health care and social assistance48
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 21403?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 21037 | Edgewater | 20,854 | $146k | 3.3 mi |
| 21402 | Annapolis | 4,303 | $81k | 3.4 mi |
| 21401 | Annapolis | 38,629 | $123k | 4.6 mi |
| 21140 | Riva | 4,417 | $170k | 5.3 mi (near) |
| 21409 | Annapolis | 20,289 | $147k | 5.8 mi (near) |
| 21405 | Annapolis | 495 | $161k | 6.7 mi (near) |
| 20776 | Harwood | 3,315 | $149k | 7.1 mi (near) |
| 21012 | Arnold | 22,570 | $139k | 7.2 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.