New Boston Flag

New Boston

County:
Mercer County
County Seat:
No
Area (mi²):
0.941
State:
Illinois

New Boston is a city located in Mercer County, Illinois. New Boston has a 2026 population of 600. New Boston is currently declining at a rate of -0.33% annually and its population has decreased by -2.28% since the most recent census, which recorded a population of 614 in 2020.

The median household income in New Boston is $60,662 with a poverty rate of 16.36%. The median age in New Boston is 46.6 years: 49.6 years for males, and 42.1 years for females. For every 100 females there are 94.0 males.

600
Total Population
638
Density (mi²)
-2 -0.33%
Growth

New Boston Population

New Boston Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026600-2-0.33%
2025602-3-0.5%
2024605-7-1.14%
202361210.16%
2022611-3-0.49%
202161400%
2020614-2-0.32%
2019653-3-0.46%
201865600%
201765630.46%
2016653-9-1.36%
2015662-6-0.9%
2014668-6-0.89%
2013674-5-0.74%
2012679-6-0.88%
201168520.29%
2010687-1-0.15%

Median Age

Overall: 46.6 years
Female: 42.1 years
Male: 49.6 years

New Boston Adults

There are 543 adults, (130 of whom are seniors) in New Boston.

Sex Ratio

Female: 334 (51.5%)
Male: 314 (48.5%)

Demographics

The racial composition of New Boston includes 96.3% White, and smaller percentages for Two or more races, Asian and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White62496.3%
Two or more races182.78%
Asian60.93%
Race
Population ↓
Percentage (of total)
Two or more races71.08%
White40.62%
Race
Population ↓
Percentage (of total)
White62095.68%
Two or more races111.7%
Asian60.93%

New Boston Marital Status

Economics and Income Statistics

New Boston 's average per capita income is $42,727. Household income levels show a median of $60,662. The poverty rate stands at 16.36%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Married Families$85,417-
Families$62,000$76,722
Households$60,662$68,897
Non Families$49,375$53,047

$42,727

Average Income

$60,662

Median Household Income

16.36%

Poverty Rate

Nearby Cities

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)