ZIP code · Smithboro · Illinois · United States
ZIP code 62284 — Smithboro
ZIP code 62284 serves Smithboro, Illinois.
- Postal code
- 62284Single source Value from one source, not cross-checked.
- City
- Smithboro
- County
- Bond FIPS 17005
- State
- Illinois
- Country
- United States
- Coordinates
- 38.8739, -89.3266 — precision precise (locality)
View on OpenStreetMap - Population
- 629 (ZCTA, ACS 5-year)
- Population density
- 23 / sq mi
- Land area
- 27.2 sq mi (70.5 km²) (ZCTA, ACS 5-year)
- Median household income
- $50,208
- Per-capita income
- $23,692
- Median age
- 34.7
- Households
- 263
- Housing units
- 273
- Median home value
- $131,000
- Congressional district
- 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 62284 with another ZIP · ZIPs within 25 miles · distance from 62284
Map of ZIP code 62284
Climate — monthly normals
Warmest month Jul (avg high 87°F), coldest Jan (avg low 21°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 37 | 42 | 53 | 65 | 75 | 84 | 87 | 86 | 80 | 68 | 54 | 42 |
| Avg low °F | 21 | 24 | 33 | 43 | 54 | 63 | 67 | 64 | 56 | 44 | 34 | 26 |
| Precip in | 3.0 | 2.5 | 3.3 | 4.9 | 5.3 | 4.9 | 3.9 | 3.2 | 3.1 | 3.3 | 3.8 | 2.7 |
NOAA 1991–2020 climate normals from the nearest station: VANDALIA (13.7 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 · 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