ZIP code · Lewistown · Illinois · United States
ZIP code 61542 — Lewistown
ZIP code 61542 serves Lewistown, Illinois.
- Postal code
- 61542Single source Value from one source, not cross-checked.
- City
- Lewistown
- County
- Fulton FIPS 17057
- State
- Illinois
- Country
- United States
- Coordinates
- 40.3830, -90.1563 — precision precise (locality)
View on OpenStreetMap - Population
- 3,306 (ZCTA, ACS 5-year)
- Population density
- 29 / sq mi
- Land area
- 113.1 sq mi (293 km²) (ZCTA, ACS 5-year)
- Median household income
- $65,529
- Per-capita income
- $35,105
- Median age
- 44.4
- Households
- 1,547
- Housing units
- 1,727
- Median home value
- $115,100
- Median gross rent
- $683 / month
- Congressional district
- IL-15 (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
- 309Telephone 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 61542 with another ZIP · ZIPs within 25 miles · distance from 61542
Map of ZIP code 61542
Climate — monthly normals
Warmest month Jul (avg high 88°F), coldest Jan (avg low 16°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 34 | 39 | 51 | 64 | 75 | 85 | 88 | 86 | 80 | 68 | 52 | 39 |
| Avg low °F | 16 | 20 | 30 | 41 | 53 | 62 | 65 | 63 | 54 | 42 | 32 | 22 |
| Precip in | 2.2 | 2.2 | 2.7 | 4.2 | 5.1 | 4.7 | 4.2 | 4.0 | 3.3 | 3.4 | 2.7 | 2.4 |
NOAA 1991–2020 climate normals from the nearest station: HAVANA (7.3 mi) · NOAA NCEI
Places in ZIP 61542
- 2 schools
- 4 parks
- 3 playgrounds
- 1 libraries
- 6 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