Northfield, Illinois Population 2021

86,338
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Northfield is a city located in Illinois. Northfield has a 2020 population of 86,338. Northfield is currently declining at a rate of -0.14% annually but its population has increased by 1.37% since the most recent census, which recorded a population of 85,173 in 2010. Northfield reached it's highest population of 87,880 in 2015.

The average household income in Northfield is $167,014 with a poverty rate of 5.50%. The median rental costs in recent years comes to $1,569 per month, and the median house value is $522,400. The median age in Northfield is 47.2 years, 45.9 years for males, and 48.6 years for females.

Northfield Demographics

According to the most recent ACS, the racial composition of Northfield was:

  • White: 79.73%
  • Asian: 15.98%
  • Black or African American: 1.84%
  • Two or more races: 1.55%
  • Other race: 0.85%
  • Native American: 0.05%
  • Native Hawaiian or Pacific Islander: 0.00%
The current population of Northfield, Illinois is 86,338 based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 86,698.The last official US Census in 2010 recorded the population at 85,173.

Northfield, Illinois Population 2021

Population by Race

Race Population Percentage
White69,58479.73%
Asian13,94315.98%
Black or African American1,6061.84%
Two or More Races1,3571.55%
Some Other Race7400.85%
American Indian and Alaska Native470.05%
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Northfield Population by Race

Northfield Population Pyramid $2021

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Northfield Median Age

47.2


Total

45.9


Male

48.6


Female

Northfield Adults

There are 66,412 adults, (21,150 of whom are seniors) in Northfield.

Northfield Age Dependency

92.8

Age Dependency Ratio

46.7

Old Age Dependency Ratio

46.1

Child Dependency Ratio

Northfield Sex Ratio

Female

45,461

52.09%

Male

41,816

47.91%

Northfield Population by Age

Northfield Renter vs Owner Occupied by Household Type

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Northfield Household Types

Type Owner Renter
Married87.7%12.3%
All79.9%20.1%
Male71.3%28.7%
Non Family66.2%33.8%
Female64.9%35.1%

79.9%

Rate of Home Ownership

Northfield Households and Families

Type Count Average Size Owned
All33,7392.5479.9
Married21,3553.1487.7
Non Family9,3911.0866.2
Female2,3212.9264.9
Male6722.7671.3

3.09

Average Family Size

2.54

Average Household Size

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Northfield Households by Type

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Education Attained Count Percentage
Less Than 9th Grade1,0251.64%
9th to 12th Grade1,1841.89%
High School Graduate7,49811.97%
Some College8,49313.56%
Associates Degree2,8094.49%
Bachelors Degree21,73934.71%
Graduate Degree19,88131.74%
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Northfield Educational Attainment by Sex (over 25)

Northfield Educational Attainment by Race

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Race Total High School Bachelors
White48,74147,63233,157
Asian9,9819,4397,098
Hispanic2,4812,030741
Black1,055955337
2+ Races433417309
Other Race43127388
Native American4739

The highest rate of high school graduation is among white people with a rate of 97.72%.

The highest rate of bachelors degrees is among 2+ races people with a rate of 71.36%.

Northfield Educational Attainment by Race

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Name Average Male Female
Overall$67,185$92,681$47,262
Less Than 9th Grade$27,685$28,730$26,141
High School Graduate$34,013$39,572$24,949
Some College$40,146$51,242$33,418
Bachelors Degree$62,642$95,946$44,650
Graduate Degree$105,721$135,594$75,496

$67,185

Average Earnings

$92,681

Average Male

$47,262

Average Female

Northfield Earnings by Educational Attainment

Northfield Language by Age

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Northfield Language

69.88% of Northfield residents speak only English, while 30.12% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 14.79% of the population.

Northfield Language

Northfield Poverty by Race

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Name Total In Poverty Poverty Rate
White65,2432,7684.24%
Hispanic4,2331,04924.78%
Asian13,9237905.67%
Black1,315846.39%
Other728506.87%
Multiple1,356382.80%

5.50%

Overall Poverty Rate

5.03%

Male Poverty Rate

5.94%

Female Poverty Rate

Poverty in Northfield

The race most likely to be in poverty in Northfield is Hispanic, with 24.78% below the poverty level.

The race least likely to be in poverty in Northfield is Multiple, with 2.80% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.35%. Among those working part-time, it was 4.69%, and for those that did not work, the poverty rate was 8.89%.

Northfield Poverty

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Name Poverty
Less Than 9th Grade20.36%
Some College8.95%
High School6.68%
Bachelors or Greater2.76%

Northfield Poverty Rate by Education

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Rate Poverty
Male Unemployed24.01%
Female Unemployed12.48%
Male Employed2.58%
Female Employed1.25%

Northfield Poverty Rate by Employment Status and Sex

Northfield Income by Household Type

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Name Median Mean
Households$109,976$167,014
Families$144,721$202,672
Married Families$159,260-
Non Families$49,285$72,575
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Income by Household Type

Northfield Marital Status

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Marriage Rates

63.3%

Overall Marriage Rate

66.6%

Male Marriage Rate

60.3%

Female Marriage Rate

Northfield Married by Age and Sex

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Northfield Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.

Northfield Marital Status by Race

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Northfield Marital Status

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3,191

Number of Veterans

3,048

Male Veterans

143

Female Veterans

War Veterans
Vietnam937
Korea616
World War II565
First Gulf War217
Second Gulf War214

Northfield Veterans by War

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Age Group Veterans
75+2,019
65 to 74609
35 to 54259
55 to 64180
18 to 34124

Northfield Veterans by Age

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Name Veterans % of Total
White3,0005.57%
Asian980.94%
Black685.99%
Hispanic411.47%
2+ Races173.31%
Native American817.02%

Northfield Veterans by Race

Northfield Veterans by Education

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5.00%

Veteran Poverty Rate

32.71%

Veteran Disability Rate

Northfield Veterans by Education

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58.6%

Labor Force Participation

56.6%

Employment Rate

3.5%

Unemployment Rate

Northfield Employment by Age

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Northfield Employment by Race

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Northfield Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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58.90%

Born in Northfield

77.36%

Native Born

22.64%

Foreign Born

6.62%

Non Citizen

16.02%

Naturalized

Place of Birth

77.36% of Northfield residents were born in the United States, with 58.90% having been born in Illinois. 6.62% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Northfield Place of Birth

Year Population Growth Annual Growth Rate
202186,338-120-0.14%
202086,458-120-0.14%
201986,578-120-0.14%
201886,698-682-0.78%
201787,380-404-0.46%
201687,784-96-0.11%
201587,8804060.46%
201487,4741,1021.28%
201386,3724830.56%
201285,8893440.40%
201185,5453720.44%
201085,1730.00%

Northfield Population by Year