Niantic is home to 671 people in Illinois. 8% of adults hold a bachelor's degree, below the 36% national rate. 89% of homes are owner-occupied. Home values have risen by half since 2000, reaching $114,800. The median age is 33.8, younger than the US median of 38.9. The foreign-born share is 3%.
At a glance
Lower income
median household income $67,155, below the US median
US median: $82,259
Younger
median age 33.8
US median: 38.9
Less educated
8% hold a bachelor's degree
US average: 36%
More affordable
home values down 9%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Niantic
What changed most since 1990
Adults with a bachelor's degree13.3% → 8.4%(−5.0 pts)US over the same years: +15.3 pts
Median home value (2024 dollars)$86,642 → $114,800(+32%)US over the same years: +67%
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)41.5%(17)
US avg: 26.4%
Gulf War (1990s)19.5%(8)
US avg: 24.3%
Vietnam era48.8%(20)
US avg: 33.1%
Korean War0%(0)
US avg: 4.5%
World War II0%(0)
US avg: 1%
Share of the 41 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
Niantic, decade by decade
Niantic 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
669
$75,451
$86,642
13.3%
0.0
2000
738
$75,023
$126,423
11.7%
2.7
2010
707
$74,925
$129,759
13.9%
8.9
2020
612
$64,844
$101,690
9.8%
11.7
2024
671
$67,155
$114,800
8.4%
40.3
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.
