ZIP code · Milmine · Illinois · United States
ZIP code 61855 — Milmine
ZIP code 61855 serves Milmine, Illinois.
- Postal code
- 61855Single source Value from one source, not cross-checked.
- City
- Milmine
- County
- Piatt FIPS 17147
- State
- Illinois
- Country
- United States
- Coordinates
- 39.9238, -88.6599 — precision precise (locality)
View on OpenStreetMap - Population
- 84 (ZCTA, ACS 5-year)
- Population density
- 7 / sq mi
- Land area
- 11.7 sq mi (30.2 km²) (ZCTA, ACS 5-year)
- Median household income
- $29,375
- Per-capita income
- $15,367
- Median age
- 46.3
- Households
- 30
- Housing units
- 35
- Congressional district
- IL-13 (119th Congress)
- USDA hardiness zone
- 6a (-10 to -5 °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
- 217 (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 61855 with another ZIP · ZIPs within 25 miles · distance from 61855
Map of ZIP code 61855
Climate — monthly normals
Warmest month Jul (avg high 86°F), coldest Jan (avg low 20°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 35 | 40 | 52 | 64 | 74 | 83 | 86 | 84 | 79 | 66 | 51 | 40 |
| Avg low °F | 20 | 23 | 32 | 42 | 53 | 62 | 66 | 63 | 55 | 44 | 34 | 25 |
| Precip in | 2.0 | 1.8 | 2.5 | 3.7 | 4.4 | 4.4 | 3.3 | 3.0 | 3.0 | 3.2 | 3.0 | 2.1 |
NOAA 1991–2020 climate normals from the nearest station: DECATUR AP (12.6 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