ZIP code · Harmon · Illinois · United States
ZIP code 61042 — Harmon
ZIP code 61042 serves Harmon, Illinois.
- Postal code
- 61042Single source Value from one source, not cross-checked.
- City
- Harmon
- County
- Lee FIPS 17103
- State
- Illinois
- Country
- United States
- Coordinates
- 41.6973, -89.5695 — precision precise (locality)
View on OpenStreetMap - Population
- 410 (ZCTA, ACS 5-year)
- Population density
- 6 / sq mi
- Land area
- 66.7 sq mi (172.8 km²) (ZCTA, ACS 5-year)
- Median household income
- $70,000
- Per-capita income
- $37,213
- Median age
- 39.6
- Households
- 170
- Housing units
- 188
- Median home value
- $123,900
- Median gross rent
- $922 / month
- Congressional district
- IL-16 (119th Congress)
- USDA hardiness zone
- 5b (-15 to -10 °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)
Tools: compare 61042 with another ZIP · ZIPs within 25 miles · distance from 61042
Map of ZIP code 61042
Climate — monthly normals
Warmest month Jul (avg high 83°F), coldest Jan (avg low 13°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 29 | 34 | 47 | 61 | 72 | 81 | 83 | 82 | 76 | 63 | 48 | 35 |
| Avg low °F | 13 | 17 | 28 | 39 | 51 | 60 | 63 | 61 | 53 | 41 | 30 | 19 |
| Precip in | 1.5 | 1.7 | 2.2 | 3.4 | 4.6 | 4.9 | 3.9 | 3.8 | 3.4 | 3.0 | 2.3 | 2.0 |
NOAA 1991–2020 climate normals from the nearest station: WALNUT (9.6 mi) · NOAA NCEI
Places in ZIP 61042
- 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