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.

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Algonquin, IL

CSAChicago-Naperville MSAChicago-Naperville-Elgin#57/341 Population

Algonquin, IL Population, Income & Demographics 2026

Census

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Demographicsi2024 ACS 5-Year EstimatesCensus

30,067population

41.4median age

This community is a community of 30,067 with a median age of 41.4. The population is predominantly White (72.7%) with a significant Hispanic/Latino community (15.6%). Median household income is $134,525. 95.7% of adults hold a high school diploma or higher, and 43.6% have a bachelor's degree. The homeownership rate is 88.2%, with a median home value of $351,000.

Race & Ethnicityi

White

72.7%21,867

Hispanic/Latino

15.6%4,682

Asian

5.3%1,581

Two or More

3.5%1,039

Black

2.8%832

Other

0.1%44

American Indian/Alaska Native

0.1%22

Educational Attainment (Age 25+)i

GED/Alternative

1.9%405

High School Diploma

17.4%3,695

Some College (<1 yr)

7.3%1,539

Some College (1+ yr)

13.7%2,898

Associate's Degree

11.9%2,525

Bachelor's Degree

27.3%5,796

Master's Degree

13.6%2,878

Professional Degree

1.4%295

Doctorate

1.3%277

HS or Higher

95.7%

BA or Higher

43.6%

Graduate+

16.3%

Housingi

$351,000median home value

$1,723median rent

88.2%homeownership

11,151total units

1.6%vacancy

Tenure

Owner 88.2%

Home Values

Under $50K

2.5%244

$50K–$100K

1%97

$100K–$150K

0.4%43

$150K–$200K

4.7%450

$200K–$300K

25.9%2,500

$300K–$500K

57.1%5,526

$500K–$1M

8.1%784

$1M+

0.3%27

Rent Distribution

$750–$1,000

220

$1,000–$1,250

196

$1,250–$1,500

$1,500–$2,000

295

$2,000+

459

Year Built

2020 or later

1.9%209

2010–2019

6.8%756

2000–2009

20.4%2,278

1990–1999

33.9%3,778

1980–1989

17%1,900

1970–1979

9.2%1,023

1960–1969

2.6%294

1950–1959

3%338

1940–1949

1.6%183

1939 or earlier

3.5%392

Heating Fuel

Utility Gas

93.5%10,256

Electricity

5.9%649

Bottled/LP Gas

0.6%63

Household Economyi

$134,525median household income

$54,037per capita income

4.1%poverty rate

4.1%unemployment

17,567labor force

Household Income Distribution

Under $10K

1.9%210

$10K–$15K

0.9%104

$15K–$20K

1.1%116

$20K–$25K

0.5%58

$25K–$30K

1.2%132

$30K–$35K

1.5%167

$35K–$40K

1.6%177

$40K–$45K

2.3%250

$45K–$50K

1.1%123

$50K–$60K

3.5%387

$60K–$75K

7%769

$75K–$100K

10.8%1,189

$100K–$125K

12.5%1,375

$125K–$150K

10.6%1,162

$150K–$200K

22.9%2,512

$200K+

20.4%2,237

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

Residentsi

Avg. Tenant Renti

$550/mo

Avg. Waitlisti

17 months

Programs in this community

Housing Choice Vouchers35 homes84% occupied$550/mo rent

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

Household Incomei

Based on area median of $134,525/yr

Extremely low incomeUnder $40K/yr

76%

Very low income$40K–$67K/yr

17%

Low income$67K–$108K/yr

Who Receives This Housing

90% of subsidized households are headed by a single mother

69% of subsidized households are minority

16% of subsidized households include someone with a disability

10% of subsidized households include a senior (62+)

Ancestry & Heritage

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

Foreign-Born Populationi

Foreign-Borni

3,68612.3%

By Region

Top Countries

Mexico

927

Poland

600

Philippines

295

Korea

205

India

132

Guatemala

Germany

United Kingdom

Commute & Transportationi

Workersi

16,629

Avg. Commutei

30.6 min

How People Get to Work

Travel Time to Work

Workforce

Total Employed

16,796

Occupations

Industries

Social Characteristicsi

Marital Status (15+)i

Veteransi

1,311(5.5% of civilian adults)

Health Insurancei

96%Insured

4%Uninsured