ZIP code · Chestertown · Maryland · United States
ZIP code 21620 — Chestertown
ZIP code 21620 serves Chestertown, Maryland.
- Postal code
- 21620Single source Value from one source, not cross-checked.
- City
- Chestertown
- County
- Kent FIPS 24029
- State
- Maryland
- Country
- United States
- Coordinates
- 39.2125, -76.0802 — precision precise (locality)
View on OpenStreetMap - Population
- 13,533 (ZCTA, ACS 5-year)
- Population density
- 114 / sq mi
- Land area
- 118.7 sq mi (307.6 km²) (ZCTA, ACS 5-year)
- Median household income
- $76,094
- Per-capita income
- $43,887
- Median age
- 42.9
- Households
- 5,674
- Housing units
- 6,259
- Median home value
- $318,700
- Median gross rent
- $1,149 / month
- Congressional district
- MD-1 (119th Congress)
- USDA hardiness zone
- 7b (5 to 10 °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 21620 with another ZIP · ZIPs within 25 miles · distance from 21620
Map of ZIP code 21620
Climate — monthly normals
Warmest month Jul (avg high 87°F), coldest Jan (avg low 27°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 41 | 44 | 53 | 64 | 74 | 82 | 87 | 85 | 78 | 67 | 56 | 45 |
| Avg low °F | 27 | 28 | 35 | 45 | 55 | 64 | 69 | 67 | 60 | 48 | 38 | 31 |
| Precip in | 3.3 | 2.9 | 4.3 | 3.7 | 3.9 | 4.4 | 4.3 | 3.6 | 4.9 | 3.7 | 3.2 | 3.8 |
NOAA 1991–2020 climate normals from the nearest station: CHESTERTOWN (1.6 mi) · NOAA NCEI
Places in ZIP 21620
- 5 schools
- 1 colleges & universities
- 1 hospitals & clinics
- 1 doctors & dentists
- 1 pharmacies
- 1 supermarkets
- 11 restaurants & cafés
- 15 parks
- 6 playgrounds
- 5 gyms & sports centres
- 2 libraries
- 34 places of worship
- 5 banks
- 7 gas stations
- 3 EV charging stations
- 2 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