Niantic Flag

Niantic

County:
Macon County
County Seat:
No
Area (mi²):
29.107
State:
Illinois

Niantic is located in Macon County, Illinois. Niantic has a 2025 population of 727 . Niantic is currently declining at a rate of 0% annually and its population has decreased by -3.32% since the most recent census, which recorded a population of 752 in 2020.

The average household income in Niantic is $90,099 with a poverty rate of 6%. The median age in Niantic is 35 years: 32.9 years for males, and 37.2 years for females. For every 100 females there are 111.6 males.

727
Total Population
25
Density (mi²)

Niantic Population

Demographics

Economics and Income Statistics

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)