Cost of Living in Grayslake, IL
Population: 20,707 | Illinois
Grayslake is 3% more expensive than the national average.
Cost of Living in Grayslake, IL: What You Need to Know
With a cost of living index of 103, Grayslake, IL is somewhat more expensive than average. Living here is 3% more expensive than the national average and 24% above the Illinois state average of 80. Grayslake is a smaller community of 20,707 residents, where everyday costs can differ substantially from nearby larger cities.
Housing costs are the biggest factor in Grayslake's cost of living. The median monthly rent is $1,434 (9% above the US median of $1,319), and the median home value sits at $293,900 (4% below the national median of $304,900). At current prices, the median home costs roughly 2.6x the median household income — well within traditional affordability guidelines.
The median household income in Grayslake is $113,697, which is 51% higher than the national median of $75,149. Residents spend roughly 15% of household income on rent. This is a comfortable ratio, well below the 30% threshold that financial experts recommend as a maximum.
Climate is another factor for anyone considering a move to Grayslake. The area sees an average annual temperature of 48.3°F, with summers averaging 69°F and winters around 26°F. Annual rainfall totals 35.3 inches spread over roughly 129 days. Cold winters mean higher heating bills, an important cost-of-living consideration.
Everyday prices in the Chicago-Naperville-Elgin, IL-IN (Metropolitan Statistical Area) metro area tend to run above the national average. Out of 6 common grocery and utility items tracked by the Bureau of Labor Statistics, 5 are priced higher than the US average. These real-world prices — from groceries to electricity — add up and should be factored into any cost of living comparison.
Data sources: US Census Bureau (ACS 2023), Zillow Home Values, HUD Fair Market Rents, BEA Regional Price Parities, BLS Average Prices, and NOAA Climate Normals. Updated monthly.
Income
- Median Household Income
- $113,697
- vs US Median ($75,149)
- +51%
Housing
- Median Rent
- $1,434/mo
- Median Home Value
- $293,900
- Median Monthly Housing Cost
- $1,862/mo
Everyday Prices in Grayslake
BLS Average Prices for the Chicago-Naperville-Elgin, IL-IN (Metropolitan Statistical Area) area
Climate in Grayslake
NOAA 30-year normals (1991-2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F | 31 | 34 | 44 | 56 | 67 | 77 | 81 | 80 | 73 | 61 | 48 | 36 |
| Avg °F | 23 | 26 | 36 | 46 | 56 | 66 | 72 | 71 | 63 | 52 | 40 | 29 |
| Low °F | 16 | 18 | 27 | 36 | 46 | 56 | 62 | 61 | 54 | 43 | 31 | 22 |
| Rain" | 1.4 | 1.5 | 2.2 | 3.8 | 3.9 | 4.5 | 3.5 | 3.6 | 3.6 | 3.3 | 2.3 | 1.9 |