ZIP code · Dundalk · Maryland · United States
ZIP code 21222 — Dundalk
ZIP code 21222 serves Dundalk, Maryland.
- Postal code
- 21222Single source Value from one source, not cross-checked.
- City
- Dundalk
- County
- Baltimore FIPS 24005
- State
- Maryland
- Country
- United States
- Coordinates
- 39.2655, -76.4935 — precision precise (locality)
View on OpenStreetMap - Population
- 58,935 (ZCTA, ACS 5-year)
- Population density
- 5,124 / sq mi
- Land area
- 11.5 sq mi (29.8 km²) (ZCTA, ACS 5-year)
- Median household income
- $61,934
- Per-capita income
- $30,695
- Median age
- 36.3
- Households
- 22,385
- Housing units
- 24,054
- Median home value
- $200,800
- Median gross rent
- $1,390 / month
- Congressional district
- MD-7 (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)
Tools: compare 21222 with another ZIP · ZIPs within 25 miles · distance from 21222
Map of ZIP code 21222
Climate — monthly normals
Warmest month Jul (avg high 90°F), coldest Jan (avg low 30°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 44 | 47 | 55 | 67 | 76 | 85 | 90 | 87 | 80 | 69 | 58 | 48 |
| Avg low °F | 30 | 32 | 39 | 48 | 58 | 68 | 73 | 71 | 65 | 53 | 43 | 35 |
| Precip in | 3.1 | 2.8 | 3.9 | 3.5 | 3.4 | 3.4 | 4.7 | 4.3 | 4.5 | 3.5 | 3.0 | 3.7 |
NOAA 1991–2020 climate normals from the nearest station: MD SCI CTR BALTIMORE (6.3 mi) · NOAA NCEI
Places in ZIP 21222
- 20 schools
- 4 colleges & universities
- 5 hospitals & clinics
- 16 doctors & dentists
- 7 pharmacies
- 8 supermarkets
- 59 restaurants & cafés
- 31 bars & pubs
- 47 parks
- 75 playgrounds
- 18 gyms & sports centres
- 3 libraries
- 1 post offices
- 63 places of worship
- 16 banks
- 17 gas stations
- 6 police & fire stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
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 · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page