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.

Nilwood, IL Population, Income & Demographics 2026

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Demographics — 2024 ACS 5-Year Estimatesi

Census

Populationi

151

Median Agei

56.5

Race & Ethnicityi

White

96.7%146

Two or More

3.3%5

Educational Attainment (Age 25+)i

GED/Alternative

9.7%11

High School Diploma

36.3%41

Some College (<1 yr)

8.8%10

Some College (1+ yr)

6.2%7

Associate's Degree

13.3%15

Bachelor's Degree

6.2%7

HS or Higher

80.5%

BA or Higher

6.2%

Housingi

Median Home Valuei

$47,600

Median Renti

—

Tenure

Owner-Occupied

95.4%62

Renter-Occupied

4.6%3

Total Units

112

Homeownership

95.4%

Vacancy Rate

42%

Home Values

Under $50K

56.5%35

$50K–$100K

19.4%12

$100K–$150K

9.7%6

$150K–$200K

4.8%3

$200K–$300K

3.2%2

$300K–$500K

3.2%2

$500K–$1M

3.2%2

Rent Distribution

$500–$750

Year Built

2010–2019

1.8%2

1990–1999

9.8%11

1980–1989

9.8%11

1970–1979

3.6%4

1960–1969

0.9%1

1950–1959

13.4%15

1940–1949

11.6%13

1939 or earlier

49.1%55

Heating Fuel

Bottled/LP Gas

55.4%36

Utility Gas

36.9%24

Electricity

7.7%5

Economyi

Median Household Incomei

$46,771

Mean Household Incomei

$57,491

Per Capita Incomei

$24,078

Poverty Ratei

15.2%

Unemploymenti

8.3%

Labor Forcei

Household Income Distribution

$10K–$15K

9.2%6

$20K–$25K

7.7%5

$25K–$30K

4.6%3

$30K–$35K

9.2%6

$35K–$40K

6.2%4

$45K–$50K

21.5%14

$50K–$60K

10.8%7

$75K–$100K

20%13

$100K–$125K

3.1%2

$125K–$150K

7.7%5

Ancestry & Heritage

Self-reported ancestry groups. Residents may report multiple ancestries, so totals may exceed 100%.

Commute & Transportationi

Workersi

Avg. Commutei

33.1 min

How People Get to Work

Travel Time to Work

Workforce

Total Employed

Occupations

Industries

Social Characteristicsi

Marital Status (15+)i

Veteransi

7(5% of civilian adults)

Health Insurancei

95.4%Insured

4.6%Uninsured