Residential delivery area · Maryland
ZIP Code 20650: Leonardtown, MD
ZIP code 20650 uses the postal name Leonardtown, Maryland and lies entirely in St. Mary's County (Census 2020 ZIP-county file). About 16,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $143,116 (Census Bureau, ACS 2020-2024). By Census place, 6% of its land lies in Leonardtown, and under 1% in smaller places; 93% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Leonardtown · its only residential ZIP
- County
- St. Mary's County
- Census places
- Leonardtown
- Neighborhood
- Foxwell Point GeoNames
- Metro area
- Lexington Park, MD
- House district
- MD-5 119th Congress
- State
- Maryland
- Time zone
- Eastern
- Land area
- 61.4 sq mi · 262 people per sq mi
Where is ZIP code 20650?
20650 centers on 38.260°, -76.632° and covers 61.4 square miles of land plus 11.9 of water. It borders 9 ZIP codes: 20656, 20619, 20620, 20609, 20636, 20624, 20660, 20692, 20659.
The map draws ZIP code areas only. For the streets inside 20650, 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 20650 compare with the rest of St. Mary's County?
| Measure | 20650 | In St. Mary's County | In MD |
|---|---|---|---|
| People (ACS 2020-2024) | 16,094 | 3rd of 27 | 145th of 477 |
| Median household income | $143k | 3rd of 8 | 65th of 293 |
| Median home value | $482k | 1st of 9 | 108th of 320 |
Its median household income is higher than in 95% of U.S. residential ZIP codes, and it is denser than 66% 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 20650?
The 2020 Census counted 15,298 people in 20650; the ACS, which samples households over 2020-2024, estimates 16,094. Between the 2010 and 2020 censuses its population grew 11.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 16,094
- 2020 Census count
- 15,298+11.5% since 2010 (13,717)
- Households
- 5,642
- Median age
- 38.6
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 20650?
Of the 16,094 people the ACS estimates in 20650, 26.8% are under 18 and 12.5% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (78.6%).
- Under 1826.8%
- 18 to 6460.7%
- 65 and older12.5%
- White, not Hispanic78.6%
- Hispanic or Latino7.2%
- Black, not Hispanic6.2%
- Other or two or more5.6%
- Asian, not Hispanic2.4%
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 20650 earn?
Median household income is $143,116 (ACS 2020-2024), the 3rd highest of the 8 ranked ZIP codes in St. Mary's County. It rose from $112,998 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $143,116±$22,483
- Income per person
- $56,798
- Below the poverty line
- 2.4%
- Unemployed (of the labor force)
- 4.1%
- Adults 25+ with a bachelor's degree
- 44.8%
- Adjusted gross income per tax return, 2022
- $119,8607,150 returns; wages 70% 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 20650?
FHFA's house price index for 20650, built from repeat sales and appraisals of the same homes, rose 65% from 2015 to 2025 and rose 46% from 2020 to 2025, and moved +4.8% in 2025.
- Median home value (owners' estimate)
- $481,700
- Median gross rent
- $1,671
- Homes owned by their occupants
- 78.7%
- Housing units
- 6,083
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 20650?
365 business establishments had a location in this ZIP code in 2023, 29 more than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance54
- Accommodation and food services48
- Construction45
- Professional, scientific, and technical services44
- Retail trade42
- Other services (except public administration)38
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 20650?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 20656 | Loveville | 87 | – | 6.0 mi |
| 20619 | California | 14,212 | $119k | 6.1 mi |
| 20620 | Callaway | 1,115 | $166k | 6.3 mi |
| 20609 | Avenue | 714 | $118k | 6.5 mi |
| 20636 | Hollywood | 10,486 | $164k | 7.3 mi |
| 20624 | Clements | 796 | $105k | 7.7 mi |
| 20660 | Morganza | 14 | – | 8.6 mi |
| 20692 | Valley Lee | 505 | $201k | 9.1 mi |
| 20659 | Mechanicsville | 24,324 | $122k | 11.6 mi |
| 20606 | Abell | 291 | $88k | 6.0 mi (near) |
| 20626 | Coltons Point | 284 | – | 7.3 mi (near) |
| 20634 | Great Mills | 7,088 | $139k | 7.4 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.