Residential delivery area · Maryland
ZIP Code 20639: Huntingtown, MD
ZIP code 20639 uses the postal name Huntingtown, Maryland and lies entirely in Calvert County (Census 2020 ZIP-county file). About 16,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $161,422 (Census Bureau, ACS 2020-2024). By Census place, 19% of its land lies in Huntingtown (a census-designated place); 80% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Huntingtown · its only residential ZIP
- County
- Calvert County
- Census places
- Huntingtown census-designated place
- Metro area
- Lexington Park, MD
- House district
- MD-5 119th Congress
- State
- Maryland
- Time zone
- Eastern
- Land area
- 41.6 sq mi · 374 people per sq mi
Where is ZIP code 20639?
20639 centers on 38.601°, -76.605° and covers 41.6 square miles of land plus 1.9 of water. It borders 6 ZIP codes: 20689, 20732, 20678, 20608, 20736, 20613.
The map draws ZIP code areas only. For the streets inside 20639, 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 20639 compare with the rest of Calvert County?
| Measure | 20639 | In Calvert County | In MD |
|---|---|---|---|
| People (ACS 2020-2024) | 15,544 | 2nd of 14 | 148th of 477 |
| Median household income | $161k | 2nd of 9 | 40th of 293 |
| Median home value | $555k | 3rd of 11 | 74th of 320 |
Its median household income is higher than in 97% of U.S. residential ZIP codes, and it is denser than 69% 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 20639?
The 2020 Census counted 15,344 people in 20639; the ACS, which samples households over 2020-2024, estimates 15,544. Between the 2010 and 2020 censuses its population grew 7.9% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 15,544
- 2020 Census count
- 15,344+7.9% since 2010 (14,227)
- Households
- 4,898
- Median age
- 41.3
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 20639?
Of the 15,544 people the ACS estimates in 20639, 26.8% are under 18 and 15.7% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (76.4%), then Black (not Hispanic) (10.3%).
- Under 1826.8%
- 18 to 6457.5%
- 65 and older15.7%
- White, not Hispanic76.4%
- Black, not Hispanic10.3%
- Other or two or more6.5%
- Hispanic or Latino5.1%
- Asian, not Hispanic1.6%
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 20639 earn?
Median household income is $161,422 (ACS 2020-2024), the 2nd highest of the 9 ranked ZIP codes in Calvert County. It is not measurably different from 2015-2019 ($159,269 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $161,422
- Income per person
- $56,872
- Below the poverty line
- 4.5%
- Unemployed (of the labor force)
- 2.1%
- Adults 25+ with a bachelor's degree
- 38.0%
- Adjusted gross income per tax return, 2022
- $119,4027,680 returns; wages 71% 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 20639?
FHFA's house price index for 20639, built from repeat sales and appraisals of the same homes, rose 52% from 2015 to 2025 and rose 39% from 2020 to 2025, and moved +5.1% in 2025.
- Median home value (owners' estimate)
- $555,100
- Median gross rent
- $1,512
- Homes owned by their occupants
- 93.0%
- Housing units
- 5,144
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 20639?
226 business establishments had a location in this ZIP code in 2023, 2 fewer than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction61
- Professional, scientific, and technical services42
- Health care and social assistance24
- Other services (except public administration)20
- Retail trade17
- Real estate and rental and leasing15
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 20639?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 20689 | Sunderland | 1,809 | $162k | 4.9 mi |
| 20732 | Chesapeake Beach | 10,722 | $140k | 5.0 mi |
| 20678 | Prince Frederick | 12,752 | $126k | 5.3 mi |
| 20608 | Aquasco | 693 | $82k | 5.3 mi |
| 20736 | Owings | 9,960 | $160k | 6.2 mi |
| 20613 | Brandywine | 17,590 | $151k | 11.8 mi |
| 20612 | Benedict | 148 | $41k | 7.5 mi (near) |
| 20714 | North Beach | 4,525 | $91k | 8.1 mi (near) |
| 20676 | Port Republic | 3,218 | $157k | 8.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.