ZIP code
20620
Callaway, MD
20620 covers Callaway in St. Mary's County, with 1,160 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 20620. Methodology
ZIP code map of 20620

About ZIP code 20620
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 20620. Not ACS. Methodology
People in 20620
Race
- White1,178
- Black or African American184
- American Indian or Alaska Native10
- Asian70
- Native Hawaiian and Pacific Islander3
- Other race12
- Two or more races131
Hispanic or Latino (any race): 65
Age
- Under 10206
- 10 to 19196
- 20 to 29201
- 30 to 39195
- 40 to 49185
- 50 to 59338
- 60 to 69172
- 70 to 7966
- 80 and older29
Income and housing in 20620
Education
- High school graduate98.3%
- Bachelor's degree17.4%
- Graduate degree3.1%
Places covering 20620
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- Callaway97.1%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- St. Mary's County100.0%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
2.9% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 20620
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 1,411 | |
| 2006 | 1,412 | |
| 2007 | 1,433 | |
| 2008 | 1,395 | |
| 2009 | 1,364 | |
| 2010 | 1,378 | |
| 2011 | 1,535 | 1,366 |
| 2012 | 1,586 | 1,380 |
| 2013 | 1,359 | 1,320 |
| 2014 | 1,291 | 1,340 |
| 2015 | 1,218 | 1,350 |
| 2016 | 1,330 | 1,430 |
| 2017 | 1,482 | 1,370 |
| 2018 | 1,365 | 1,420 |
| 2019 | 1,369 | 1,380 |
| 2020 | 1,688 | 1,390 |
| 2021 | 1,488 | 1,430 |
| 2022 | 1,325 | 1,450 |
| 2023 | 1,160 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 20620
12 nearest ZIP centroids (any distance)
- 20634Great Mills1.4 miPop 6,976 · Income $117,431
- 20692Valley Lee3.8 miPop 438 · Income $120,491
- 20619California4.1 miPop 14,743 · Income $114,848
- 20667Park Hall4.2 miPop 98 · Income —
- 20653Lexington Park5.1 miPop 26,799 · Income $97,923
- 20690Tall Timbers5.2 miPop 1,046 · Income $129,236
- 20674Piney Point5.5 miPop 638 · Income $126,029
- 20686Saint Marys City5.8 miPop 949 · Income —
- 20630Drayden6.0 miPop 346 · Income $227,581
- 20650Leonardtown6.3 miPop 15,979 · Income $139,688
- 20670Patuxent River7.2 miPop 1,577 · Income $70,945
- 20688Solomons7.2 miPop 1,113 · Income $88,902
ZIP centroids within 2 miles
| ZIP | City | State | Distance (miles) | ACS population | Median income |
|---|---|---|---|---|---|
| 20634 | Great Mills | MD | 1.4 mi | 6,976 | $117,431 |
ZIPs within 2 miles of this place
Default is 2 miles. Distances are between ZIP centroids. Widen the radius if nothing is in range.
ZIP code 20620 FAQ
- What city is ZIP code 20620 in?
- 20620 is in Callaway, MD.
- What county is 20620 in?
- 20620 is in St. Mary's County.
- What is the median household income in 20620?
- The median household income in 20620 is $154,188.
- Which ZIP codes are near 20620?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 20620.