Manhattan is home to 11,026 people in Illinois. Since 2000 the city has roughly tripled, up 7,696 people. Owners hold 88% of the housing stock. Households here earn about 54% more than in Illinois as a whole. Few US cities rank higher on income. The median age is 32.8, younger than the US median of 38.9.
At a glance
Wealthier
median household income $128,522, above the US median
US median: $82,259
Younger
median age 32.8
US median: 38.9
Average education
35% 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 Manhattan
What changed most since 1990
Population2,059 → 11,026(+436%)US over the same years: +35%
Homes owned by their occupants71.9% → 88.3%(+16.3 pts)US over the same years: +0.9 pts
Adults with a bachelor's degree11.6% → 35.0%(+23.4 pts)US over the same years: +15.3 pts
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)29.5%(78)
US avg: 26.4%
Gulf War (1990s)23.1%(61)
US avg: 24.3%
Vietnam era31.8%(84)
US avg: 33.1%
Korean War0%(0)
US avg: 4.5%
World War II0%(0)
US avg: 1%
Share of the 264 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
Manhattan, decade by decade
Manhattan 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
2,059
$91,462
$203,766
11.6%
6.3
2000
3,330
$101,209
$273,613
19.2%
10.5
2010
7,051
$115,789
$370,720
28.7%
21.4
2020
9,385
$128,144
$300,949
31.2%
29.1
2024
11,026
$128,522
$332,600
35.0%
43.0
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.
