ZIP code · Neponset · Illinois · United States
ZIP code 61345 — Neponset
ZIP code 61345 serves Neponset, Illinois.
- Postal code
- 61345Single source Value from one source, not cross-checked.
- City
- Neponset
- County
- Bureau FIPS 17011
- State
- Illinois
- Country
- United States
- Coordinates
- 41.2905, -89.7944 — precision precise (locality)
View on OpenStreetMap - Population
- 760 (ZCTA, ACS 5-year)
- Population density
- 16 / sq mi
- Land area
- 47.3 sq mi (122.6 km²) (ZCTA, ACS 5-year)
- Median household income
- $82,500
- Per-capita income
- $39,754
- Median age
- 50.5
- Households
- 328
- Housing units
- 381
- Median home value
- $99,200
- Median gross rent
- $770 / 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)
- 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 61345 with another ZIP · ZIPs within 25 miles · distance from 61345
Map of ZIP code 61345
Climate — monthly normals
Warmest month Jul (avg high 84°F), coldest Jan (avg low 14°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 30 | 35 | 48 | 61 | 72 | 81 | 84 | 82 | 77 | 64 | 49 | 36 |
| Avg low °F | 14 | 17 | 27 | 38 | 50 | 60 | 63 | 61 | 52 | 41 | 30 | 20 |
| Precip in | 1.9 | 2.1 | 2.6 | 4.0 | 5.1 | 5.0 | 3.7 | 3.9 | 3.7 | 2.9 | 2.6 | 2.2 |
NOAA 1991–2020 climate normals from the nearest station: KEWANEE 1 E (6.4 mi) · NOAA NCEI
Places in ZIP 61345
- 1 schools
- 2 parks
- 1 playgrounds
- 1 libraries
- 1 post offices
- 1 police & fire stations
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