Cost of Living in Northbrook, IL
Population 34,642 · Illinois · Data vintage 2023
(100 = US avg)
Northbrook's housing market reflects its status as a high-earning metro: $644,000 for a typical home, 111% above the US median, paired with household incomes around $155,321 that put it in the upper third of the state.
Northbrook sits roughly 20 miles northwest of Chicago — close enough that regional housing and labor patterns are shaped largely by the larger market. Median home values run roughly 104% higher than Chicago's $315,000.
Cost Overview
Scale: 100 = US national average. Green < 90, Red > 110.
About the Cost of Living in Northbrook
The median home value in Northbrook is $644,100 — 111% above the national median of $305,000. Median rent runs $2,334/month, 78% higher than the national median of $1,314/month. The median household income of $155,321/year is 108% higher than the US median of $74,580. The local unemployment rate is 3.3%, below the national average of 4.8%. Illinois's top state income tax rate is 5.0% and the combined sales tax is 8.7%. The climate averages highs of 59.2°F and lows of 42.3°F. Overall, Northbrook has a cost of living index of 198 versus the US average of 100, meaning it is 98% more expensive.
🏠 Housing
HUD Fair Market Rents by Bedroom
💰 Estimated Monthly Budget
Estimates based on median data and national averages. Actual costs vary.
🛒 Food & Groceries
National BLS average prices (2023). Local prices may vary.
🚗 Transportation
Commute Mode
⚡ Utilities
📋 Taxes
💼 Income & Employment
🎓 Education
👥 Demographics
🌤 Climate
NOAA 1991–2020 Climate Normals
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F | 32 | 36 | 47 | 58 | 70 | 80 | 84 | 82 | 75 | 63 | 49 | 37 |
| Low °F | 18 | 21 | 30 | 39 | 50 | 60 | 66 | 65 | 56 | 45 | 33 | 24 |
| Precip" | 1.33 | 1.28 | 1.84 | 3.31 | 3.76 | 3.97 | 3.15 | 3.70 | 3.04 | 3.11 | 2.15 | 1.64 |
💨 Air Quality
EPA AQS 2023 — county-level monitoring data
Frequently Asked Questions
What is the cost of living in Northbrook, IL?
Northbrook has a cost index of 198 (100 = national average). It is 98% above the national average.
What is average rent in Northbrook, IL?
The median gross rent in Northbrook is $2,334 per month based on 2023 Census data.
What is the average home price in Northbrook?
The median home value in Northbrook is $644,100 according to Zillow and Census data.
What is the median income in Northbrook?
The median household income in Northbrook is $155,321 per year (2023 ACS 5-year estimates).
What is the sales tax in Northbrook, IL?
The combined state and local sales tax rate in Northbrook is 8.7%. The Illinois state income tax top rate is 5.0%.
Is Northbrook, IL affordable?
Northbrook is above average in cost of living, with an index of 198 — about 98% higher than the national average.
What is the weather like in Northbrook?
Northbrook has average high temperatures of 59.2°F and average lows of 42.3°F. Annual precipitation is 32.3". Data from NOAA 1991–2020 Climate Normals.
Northbrook at a Glance
- Population
- 34,642
- Median Income
- $155,321
- Home Value
- $644,100
- Median Rent
- $2,334/mo
- Unemployment
- 3.3%
- Avg High Temp
- 59.2°F
- Sales Tax
- 8.7%
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Illinois Rankings
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