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.

Old Mill Creek, IL Population, Income & Demographics 2026

CSAChicago-Naperville MSAChicago-Naperville-Elgin#55/303 Home Value

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Demographics — 2024 ACS 5-Year Estimatesi

Census

Populationi

143

Median Agei

47.3

Race & Ethnicityi

White

82.5%118

Hispanic/Latino

10.5%15

Two or More

6.3%9

American Indian/Alaska Native

0.7%1

Educational Attainment (Age 25+)i

GED/Alternative

3.8%4

High School Diploma

4.8%5

Some College (<1 yr)

1.9%2

Some College (1+ yr)

8.6%9

Associate's Degree

3.8%4

Bachelor's Degree

41%43

Master's Degree

28.6%30

Professional Degree

2.9%3

Doctorate

1.9%2

HS or Higher

97.1%

BA or Higher

74.3%

Graduate+

33.3%

Housingi

Median Home Valuei

$450,000

Median Renti

$1,688

Tenure

Owner-Occupied

43.8%28

Renter-Occupied

56.3%36

Total Units

Homeownership

43.8%

Vacancy Rate

16.9%

Home Values

$200K–$300K

32.1%9

$300K–$500K

25%7

$500K–$1M

35.7%10

$1M+

7.1%2

Rent Distribution

$500–$750

$750–$1,000

$1,000–$1,250

$1,250–$1,500

$1,500–$2,000

$2,000+

Year Built

2000–2009

3.9%3

1990–1999

10.4%8

1980–1989

6.5%5

1970–1979

5.2%4

1960–1969

9.1%7

1950–1959

5.2%4

1940–1949

15.6%12

1939 or earlier

44.2%34

Heating Fuel

Utility Gas

81.2%52

Bottled/LP Gas

12.5%8

Other

4.7%3

Electricity

1.6%1

Economyi

Median Household Incomei

$108,333

Mean Household Incomei

$147,483

Per Capita Incomei

$70,157

Poverty Ratei

4.9%

Unemploymenti

6.1%

Labor Forcei

Household Income Distribution

Under $10K

7.8%5

$10K–$15K

3.1%2

$25K–$30K

1.6%1

$35K–$40K

3.1%2

$40K–$45K

4.7%3

$50K–$60K

7.8%5

$60K–$75K

17.2%11

$75K–$100K

3.1%2

$100K–$125K

12.5%8

$125K–$150K

15.6%10

$150K–$200K

7.8%5

$200K+

15.6%10

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

Avg. Commutei

23.4 min

How People Get to Work

Travel Time to Work

Workforce

Total Employed

Occupations

Industries

Social Characteristicsi

Marital Status (15+)i

Veteransi

3(2.7% of civilian adults)