Northfield Flag

Northfield

County:
Cook County
County Seat:
No
Area (mi²):
3.23
State:
Illinois

Northfield is a village located in Cook County, Illinois. Northfield has a 2026 population of 5,567. Northfield is currently declining at a rate of -0.52% annually and its population has decreased by -3.03% since the most recent census, which recorded a population of 5,741 in 2020.

The median household income in Northfield is $161,500 with a poverty rate of 3.18%. The median age in Northfield is 49.2 years: 43.6 years for males, and 52.8 years for females. For every 100 females there are 86.1 males.

5.6K
Total Population
1,724
Density (mi²)
-29 -0.52%
Growth

Northfield Population

Northfield Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20265,567-29-0.52%
20255,596-29-0.52%
20245,625460.82%
20235,579-1-0.02%
20225,580-63-1.12%
20215,643-102-1.78%
20205,7413616.71%
20195,380-28-0.52%
20185,408-54-0.99%
20175,462-37-0.67%
20165,499-17-0.31%
20155,516-6-0.11%
20145,52220.04%
20135,520130.24%
20125,507270.49%
20115,480220.4%
20105,458380.7%
20005,38975416.27%
19904,635-1,172-20.18%
19805,80779715.91%
19705,0101,00525.09%
19604,00500%

Median Age

Overall: 49.2 years
Female: 52.8 years
Male: 43.6 years

Northfield Adults

There are 4,278 adults, (1,446 of whom are seniors) in Northfield.

Sex Ratio

Female: 2,949 (53.7%)
Male: 2,538 (46.3%)

Demographics

The racial composition of Northfield includes 85.26% White, 8.11% Asian, and smaller percentages for other race, Black or African American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White4,67885.26%
Asian4458.11%
Two or more races2594.72%
Other race961.75%
Black or African American90.16%
Race
Population ↓
Percentage (of total)
Two or more races861.57%
Other race320.58%
Race
Population ↓
Percentage (of total)
White4,67885.26%
Asian4458.11%
Two or more races1733.15%
Other race641.17%
Black or African American90.16%

Northfield Marital Status

Economics and Income Statistics

Northfield 's average per capita income is $110,119. Household income levels show a median of $161,500. The poverty rate stands at 3.18%.

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
Families$250,001$329,168
Married Families$250,001-
Households$161,500$264,530
Non Families$57,035$123,893

$110,119

Average Income

$161,500

Median Household Income

3.18%

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)