Deerfield is home to 19,518 people in Illinois. Households here earn about 118% more than in Illinois as a whole. 82% of adults hold a bachelor's degree, against 36% nationally. Households take in $181,660 a year at the median, 121% more than the country as a whole. Few US cities rank higher on income. 83% of homes are owner-occupied.
At a glance
Wealthier
median household income $181,660, above the US median
US median: $82,259
Older
median age 44.5
US median: 38.9
More educated
82% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Deerfield
What changed most since 1990
Median home value (2024 dollars)$555,376 → $623,400(+12%)US over the same years: +67%
Homes owned by their occupants89.4% → 82.5%(−6.8 pts)US over the same years: +0.9 pts
White share96.3% → 86.1%(−10.2 pts)US over the same years: −17.8 pts
Deerfield's population equals 2.7% of Lake County's. Its number of residents living in poverty equals 0.9% of the county's. Its number of foreign-born residents equals 1.3% of the county's.
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)19%(110)
US avg: 26.4%
Gulf War (1990s)27.6%(160)
US avg: 24.3%
Vietnam era26.4%(153)
US avg: 33.1%
Korean War9.8%(57)
US avg: 4.5%
World War II3.1%(18)
US avg: 1%
Share of the 580 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Deerfield, decade by decade
Deerfield population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
17,327
$172,723
$555,376
59.6%
9.1
2000
18,420
$195,270
$605,518
68.5%
12.9
2010
18,225
$189,221
$813,512
73.9%
18.9
2020
19,196
$196,428
$631,593
82.3%
30.4
2024
19,518
$181,660
$623,400
82.1%
31.5
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
