ZIP code · Lake Forest · Illinois · United States
ZIP code 60045 — Lake Forest
ZIP code 60045 serves Lake Forest, Illinois.
- Postal code
- 60045Single source Value from one source, not cross-checked.
- City
- Lake Forest
- County
- Lake FIPS 17097
- State
- Illinois
- Country
- United States
- Coordinates
- 42.2374, -87.8482 — precision precise (locality)
View on OpenStreetMap - Population
- 20,957 (ZCTA, ACS 5-year)
- Population density
- 983 / sq mi
- Land area
- 21.3 sq mi (55.2 km²) (ZCTA, ACS 5-year)
- Median household income
- $225,551
- Per-capita income
- $108,356
- Median age
- 46.1
- Households
- 7,497
- Housing units
- 7,939
- Median home value
- $899,200
- Median gross rent
- $2,321 / month
- Congressional district
- IL-10 (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)
Tools: compare 60045 with another ZIP · ZIPs within 25 miles · distance from 60045
Map of ZIP code 60045
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 | 32 | 36 | 46 | 57 | 68 | 78 | 84 | 82 | 75 | 63 | 49 | 38 |
| Avg low °F | 16 | 19 | 28 | 38 | 48 | 57 | 63 | 62 | 55 | 43 | 33 | 22 |
| Precip in | 2.1 | 2.0 | 2.3 | 4.0 | 4.8 | 4.3 | 3.7 | 4.2 | 3.6 | 3.6 | 2.6 | 2.3 |
NOAA 1991–2020 climate normals from the nearest station: CHICAGO BOTANIC GARDEN (7.5 mi) · NOAA NCEI
Places in ZIP 60045
- 16 schools
- 2 colleges & universities
- 2 hospitals & clinics
- 4 doctors & dentists
- 2 pharmacies
- 3 supermarkets
- 26 restaurants & cafés
- 2 bars & pubs
- 19 parks
- 27 playgrounds
- 10 gyms & sports centres
- 2 libraries
- 3 post offices
- 13 places of worship
- 8 banks
- 7 gas stations
- 2 EV charging stations
- 4 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