ZIP code · New Windsor · Illinois · United States
ZIP code 61465 — New Windsor
ZIP code 61465 serves New Windsor, Illinois.
- Postal code
- 61465Single source Value from one source, not cross-checked.
- City
- New Windsor
- County
- Mercer FIPS 17131
- State
- Illinois
- Country
- United States
- Coordinates
- 41.1987, -90.4598 — precision precise (locality)
View on OpenStreetMap - Population
- 1,251 (ZCTA, ACS 5-year)
- Population density
- 31 / sq mi
- Land area
- 40.4 sq mi (104.7 km²) (ZCTA, ACS 5-year)
- Median household income
- $57,014
- Per-capita income
- $33,656
- Median age
- 48.5
- Households
- 531
- Housing units
- 581
- Median home value
- $110,400
- Median gross rent
- $625 / month
- Congressional districts
- IL-17 (also 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 61465 with another ZIP · ZIPs within 25 miles · distance from 61465
Map of ZIP code 61465
Climate — monthly normals
Warmest month Jul (avg high 85°F), coldest Jan (avg low 13°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 31 | 36 | 49 | 62 | 73 | 82 | 85 | 83 | 77 | 64 | 49 | 36 |
| Avg low °F | 13 | 17 | 27 | 38 | 50 | 60 | 63 | 62 | 53 | 41 | 30 | 20 |
| Precip in | 1.7 | 1.9 | 2.5 | 4.0 | 5.1 | 5.4 | 3.9 | 3.9 | 3.7 | 2.8 | 2.3 | 2.0 |
NOAA 1991–2020 climate normals from the nearest station: ALEDO (14.8 mi) · NOAA NCEI
Places in ZIP 61465
- 2 schools
- 1 libraries
- 1 post offices
- 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