ZIP code · Fenton · Illinois · United States
ZIP code 61251 — Fenton
ZIP code 61251 serves Fenton, Illinois.
- Postal code
- 61251Single source Value from one source, not cross-checked.
- City
- Fenton
- County
- Whiteside FIPS 17195
- State
- Illinois
- Country
- United States
- Coordinates
- 41.7285, -90.0457 — precision precise (locality)
View on OpenStreetMap - Population
- 336 (ZCTA, ACS 5-year)
- Population density
- 19 / sq mi
- Land area
- 17.6 sq mi (45.5 km²) (ZCTA, ACS 5-year)
- Median household income
- $75,000
- Per-capita income
- $32,088
- Median age
- 40.4
- Households
- 154
- Housing units
- 154
- Median home value
- $187,100
- Congressional district
- IL-17 (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
- 309 (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 61251 with another ZIP · ZIPs within 25 miles · distance from 61251
Map of ZIP code 61251
Climate — monthly normals
Warmest month Jul (avg high 83°F), coldest Jan (avg low 12°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 29 | 34 | 46 | 60 | 71 | 80 | 83 | 81 | 75 | 62 | 47 | 35 |
| Avg low °F | 12 | 16 | 27 | 37 | 49 | 59 | 62 | 60 | 51 | 39 | 28 | 18 |
| Precip in | 1.5 | 1.6 | 2.5 | 3.8 | 4.7 | 4.9 | 4.2 | 4.3 | 3.4 | 2.8 | 2.5 | 2.0 |
NOAA 1991–2020 climate normals from the nearest station: MORRISON (6.1 mi) · NOAA NCEI
Places in ZIP 61251
- 1 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