ZIP code 20620 — Callaway

Postal code

20620Copy

Single source Value from one source, not cross-checked.

City

Callaway

County

St. Mary's FIPS 24037

State

Maryland

Country

United States

Coordinates

38.2275, -76.5210 — precision precise (locality)
View on OpenStreetMap

Population

1,160 (ZCTA, ACS 5-year)

Population density

271 / sq mi

Land area

4.3 sq mi (11.1 km²) (ZCTA, ACS 5-year)

Median household income

$154,188

Per-capita income

$50,479

Median age

38.8

Households

387

Housing units

426

Median home value

$369,200

Median gross rent

$1,360 / month

Congressional district

MD-5 (119th Congress)

USDA hardiness zone

8a (10 to 15 °F)

Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.

Time zone

America/New_York (UTC−5 / UTC−4 DST)

Area codes

240, 301, 227 (from the nearest rate centre)

Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.

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