ZIP code · Oswego · Illinois · United States
ZIP code 60543 — Oswego
ZIP code 60543 serves Oswego, Illinois.
- Postal code
- 60543Single source Value from one source, not cross-checked.
- City
- Oswego
- County
- Kendall FIPS 17093
- State
- Illinois
- Country
- United States
- Coordinates
- 41.6849, -88.3453 — precision precise (locality)
View on OpenStreetMap - Population
- 41,723 (ZCTA, ACS 5-year)
- Population density
- 995 / sq mi
- Land area
- 41.9 sq mi (108.6 km²) (ZCTA, ACS 5-year)
- Median household income
- $116,507
- Per-capita income
- $45,795
- Median age
- 39.2
- Households
- 14,200
- Housing units
- 14,327
- Median home value
- $319,300
- Median gross rent
- $1,558 / month
- Congressional district
- IL-14 (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 60543 with another ZIP · ZIPs within 25 miles · distance from 60543
Map of ZIP code 60543
Climate — monthly normals
Warmest month Jul (avg high 84°F), coldest Jan (avg low 16°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 31 | 35 | 47 | 60 | 71 | 81 | 84 | 82 | 76 | 63 | 48 | 36 |
| Avg low °F | 16 | 20 | 29 | 39 | 50 | 60 | 65 | 63 | 55 | 43 | 32 | 22 |
| Precip in | 1.9 | 1.8 | 2.4 | 4.0 | 4.9 | 4.5 | 4.2 | 3.9 | 3.4 | 3.7 | 2.7 | 2.2 |
NOAA 1991–2020 climate normals from the nearest station: AURORA (6.8 mi) · NOAA NCEI
Places in ZIP 60543
- 21 schools
- 3 hospitals & clinics
- 9 doctors & dentists
- 2 pharmacies
- 6 supermarkets
- 85 restaurants & cafés
- 5 bars & pubs
- 62 parks
- 43 playgrounds
- 6 gyms & sports centres
- 1 libraries
- 2 post offices
- 10 places of worship
- 8 banks
- 13 gas stations
- 3 EV charging stations
- 8 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