ZIP code · Mayo · Maryland · United States

ZIP code 21106 — Mayo

ZIP code 21106 serves Mayo, Maryland.

Postal code: 21106
Single source Value from one source, not cross-checked.
City: Mayo
County: Anne Arundel
State: Maryland
Country: United States
Coordinates: 38.8876, -76.5119 — precision precise (locality)
View on OpenStreetMap
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: 443, 410, 667 (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.

Tools: compare 21106 with another ZIP · ZIPs within 25 miles · distance from 21106

Climate — monthly normals

Warmest month Jul (avg high 86°F), coldest Jan (avg low 30°F).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high °F	43	45	53	64	73	82	86	84	77	67	56	47
Avg low °F	30	32	38	47	57	68	72	71	65	52	42	34
Precip in	2.8	2.4	3.8	3.4	3.1	4.0	4.9	4.3	5.1	4.0	3.0	3.0

NOAA 1991–2020 climate normals from the nearest station: ANNAPOLIS NAF (7.0 mi) · NOAA NCEI

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page