Where does this demographic data come from?

All demographic data comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates, which samples about 3.5 million households annually. The 5-year estimates provide the most reliable data for small geographies like municipalities.

What is the difference between Census data and ACS data?

The decennial Census (conducted every 10 years) is a full population count focusing on basic demographics. The ACS is an ongoing survey that collects detailed data on income, education, housing, commute patterns, and more. ACS data is updated annually but represents averages over a 5-year period.

How accurate is this data for small towns?

For smaller municipalities, ACS estimates have wider margins of error because fewer residents are sampled. The 5-year estimates reduce this uncertainty by averaging over a longer period. For towns under 5,000 people, treat specific numbers as approximations rather than precise counts.

Northfield, IL Population, Income & Demographics 2026

CSAChicago-Naperville MSAChicago-Naperville-Elgin#11/303 Home Value

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Demographics — 2024 ACS 5-Year Estimatesi

Census

Populationi

5,487

Median Agei

49.2

Race & Ethnicityi

White

85.3%4,678

Asian

8.1%445

Two or More

3.2%173

Hispanic/Latino

2.2%118

Other

1.2%64

Black

0.2%9

Educational Attainment (Age 25+)i

GED/Alternative

0.5%21

High School Diploma

4.7%181

Some College (<1 yr)

1.3%52

Some College (1+ yr)

10.2%395

Associate's Degree

2.2%87

Bachelor's Degree

42.1%1,630

Master's Degree

24.1%934

Professional Degree

11.2%434

Doctorate

3.3%126

HS or Higher

99.7%

BA or Higher

80.7%

Graduate+

38.6%

Housingi

Median Home Valuei

$878,300

Median Renti

$2,083

Tenure

Owner-Occupied

91.8%2,113

Renter-Occupied

8.2%189

Total Units

2,464

Homeownership

91.8%

Vacancy Rate

6.6%

Home Values

$100K–$150K

0.4%9

$150K–$200K

3.1%66

$200K–$300K

6.2%132

$300K–$500K

14%296

$500K–$1M

35.8%757

$1M+

40.4%853

Rent Distribution

$1,250–$1,500

$1,500–$2,000

$2,000+

Year Built

2020 or later

0.6%14

2010–2019

3.4%85

2000–2009

11.9%292

1990–1999

5.9%145

1980–1989

11.7%289

1970–1979

18.9%465

1960–1969

13.2%325

1950–1959

22.4%553

1940–1949

7.8%193

1939 or earlier

4.2%103

Heating Fuel

Utility Gas

82.4%1,897

Electricity

15.2%350

Other

1.8%41

Solar

0.6%14

Economyi

Median Household Incomei

$161,500

Mean Household Incomei

$264,530

Per Capita Incomei

$111,184

Poverty Ratei

3.2%

Unemploymenti

2.2%

Labor Forcei

2,765

Household Income Distribution

Under $10K

3.6%83

$10K–$15K

1.9%44

$20K–$25K

4%92

$25K–$30K

2%47

$30K–$35K

2.7%62

$35K–$40K

2%46

$50K–$60K

8.5%195

$60K–$75K

6.2%142

$75K–$100K

3.2%74

$100K–$125K

9.2%211

$125K–$150K

4.4%101

$150K–$200K

7.7%178

$200K+

44.6%1,027

Federally Subsidized Housingi

HUD

The federal government helps low-income families, seniors, and people with disabilities afford housing through several programs. Residents typically pay about 30% of their income toward rent, with the government covering the rest. This data shows how many households in this community receive that assistance.

Subsidized Homesi

Programs in this community

Housing Choice Vouchers1 homes

Rental vouchers (Section 8) that help tenants pay for private-market housing

Commute & Transportationi

Workersi

2,660

Avg. Commutei

24.8 min

How People Get to Work

Travel Time to Work

Workforce

Total Employed

2,704

Occupations

Industries

Social Characteristicsi

Marital Status (15+)i

Veteransi

151(3.5% of civilian adults)