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.

Sleepy Hollow, IL Population, Income & Demographics 2026

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Demographics — 2024 ACS 5-Year Estimatesi

Census

Populationi

3,161

Median Agei

52.3

Race & Ethnicityi

White

80.1%2,531

Hispanic/Latino

12.8%404

Black

2.8%90

Two or More

2.8%88

Asian

1.5%48

Educational Attainment (Age 25+)i

GED/Alternative

1.2%28

High School Diploma

18.6%448

Some College (<1 yr)

6.3%151

Some College (1+ yr)

13.5%325

Associate's Degree

8.8%212

Bachelor's Degree

29.6%714

Master's Degree

13.1%316

Professional Degree

1.3%31

Doctorate

3.2%77

HS or Higher

95.4%

BA or Higher

47.2%

Graduate+

17.6%

Housingi

Median Home Valuei

$382,800

Median Renti

$1,363

Tenure

Owner-Occupied

93.2%1,132

Renter-Occupied

6.8%82

Total Units

1,214

Homeownership

93.2%

Economyi

Median Household Incomei

$149,813

Mean Household Incomei

$189,784

Per Capita Incomei

$74,152

Poverty Ratei

4.7%

Unemploymenti

5.1%

Labor Forcei

1,940

Household Income Distribution

Under $10K

4.8%58

$10K–$15K

1.2%15

$15K–$20K

0.4%5

$20K–$25K

0.8%10

$25K–$30K

0.9%11

$30K–$35K

2.4%29

$35K–$40K

3.2%39

$40K–$45K

2.5%30

$45K–$50K

1.2%14

$50K–$60K

4.7%57

$60K–$75K

5.1%62

$75K–$100K

8.7%106

$100K–$125K

3.2%39

$125K–$150K

11.1%135

$150K–$200K

15.2%184

$200K+

34.6%420

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 Vouchers2 homes

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

Ancestry & Heritage

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

Social Characteristicsi

Marital Status (15+)i

Veteransi

91(3.3% of civilian adults)