ZIP code · Dorsey · Illinois · United States
ZIP code 62021 — Dorsey
ZIP code 62021 serves Dorsey, Illinois.
- Postal code
- 62021Single source Value from one source, not cross-checked.
- City
- Dorsey
- County
- Madison FIPS 17119
- State
- Illinois
- Country
- United States
- Coordinates
- 38.9832, -89.9786 — precision precise (locality)
View on OpenStreetMap - Population
- 1,127 (ZCTA, ACS 5-year)
- Population density
- 56 / sq mi
- Land area
- 20.3 sq mi (52.5 km²) (ZCTA, ACS 5-year)
- Median household income
- $108,125
- Per-capita income
- $49,173
- Median age
- 40.9
- Households
- 410
- Housing units
- 467
- Median home value
- $277,700
- Congressional districts
- IL-13 (also IL-15) (119th Congress)
- USDA hardiness zone
- 6b (-5 to 0 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Chicago (UTC−6 / UTC−5 DST)
- Area code
- 618 (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 62021 with another ZIP · ZIPs within 25 miles · distance from 62021
Map of ZIP code 62021
Climate — monthly normals
Warmest month Jul (avg high 87°F), coldest Jan (avg low 22°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 39 | 44 | 54 | 66 | 75 | 84 | 87 | 86 | 80 | 68 | 54 | 44 |
| Avg low °F | 22 | 25 | 35 | 45 | 56 | 66 | 69 | 67 | 60 | 48 | 37 | 27 |
| Precip in | 2.5 | 2.5 | 3.5 | 4.9 | 5.5 | 3.4 | 4.0 | 3.3 | 3.4 | 2.9 | 3.4 | 2.6 |
NOAA 1991–2020 climate normals from the nearest station: ALTON - MELVIN PRICE L&D (12.2 mi) · NOAA NCEI
Places in ZIP 62021
- 1 schools
- 2 places of worship
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