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.

Griffith, IN Population, Income & Demographics 2026

CSAChicago-Naperville MSAChicago-Naperville-Elgin#131/341 Population

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Demographics — 2024 ACS 5-Year Estimatesi

Census

Populationi

16,273

Median Agei

37.5

Race & Ethnicityi

White

58.7%9,554

Hispanic/Latino

19.1%3,103

Black

14.5%2,364

Two or More

5.2%847

Asian

2%321

Other

0.5%74

American Indian/Alaska Native

0.1%10

Educational Attainment (Age 25+)i

GED/Alternative

3.8%432

High School Diploma

33%3,804

Some College (<1 yr)

7.2%825

Some College (1+ yr)

15.2%1,744

Associate's Degree

8.7%999

Bachelor's Degree

20.2%2,328

Master's Degree

5.6%641

Professional Degree

1.5%167

Doctorate

0.7%78

HS or Higher

95.7%

BA or Higher

27.9%

Graduate+

7.7%

Housingi

Median Home Valuei

$210,100

Median Renti

$1,235

Tenure

Owner-Occupied

71.7%4,998

Renter-Occupied

28.3%1,971

Total Units

7,301

Homeownership

71.7%

Vacancy Rate

4.5%

Home Values

Under $50K

3.6%179

$50K–$100K

5.3%264

$100K–$150K

10.9%545

$150K–$200K

25.1%1,252

$200K–$300K

43.7%2,185

$300K–$500K

10.4%521

$500K–$1M

0.9%44

$1M+

0.2%8

Rent Distribution

Under $500

$750–$1,000

158

$1,000–$1,250

835

$1,250–$1,500

587

$1,500–$2,000

260

$2,000+

Year Built

2010–2019

2.7%198

2000–2009

3%217

1990–1999

6.5%472

1980–1989

10.1%736

1970–1979

11.4%834

1960–1969

32.5%2,373

1950–1959

20.5%1,497

1940–1949

6.5%477

1939 or earlier

6.8%497

Heating Fuel

Utility Gas

85.2%5,937

Electricity

9.9%687

Bottled/LP Gas

2.2%151

No Fuel

1.9%133

Other

0.9%61

Economyi

Median Household Incomei

$76,636

Mean Household Incomei

$91,177

Per Capita Incomei

$40,565

Poverty Ratei

7.1%

Unemploymenti

3.8%

Labor Forcei

9,086

Household Income Distribution

Under $10K

4.7%329

$10K–$15K

1.2%85

$15K–$20K

2.5%176

$20K–$25K

3.7%255

$25K–$30K

1.2%81

$30K–$35K

4.3%303

$35K–$40K

2.7%185

$40K–$45K

2.1%143

$45K–$50K

4.8%336

$50K–$60K

7.4%518

$60K–$75K

13.5%942

$75K–$100K

19.8%1,382

$100K–$125K

11.4%796

$125K–$150K

8%556

$150K–$200K

6.7%467

$200K+

6%415

Ancestry & Heritage

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

Foreign-Born Populationi

Foreign-Borni

9736%

By Region

Top Countries

Mexico

416

China

107

Poland

Philippines

Guatemala

Commute & Transportationi

Workersi

8,487

Avg. Commutei

28.3 min

How People Get to Work

Travel Time to Work

Workforce

Total Employed

8,735

Occupations

Industries

Social Characteristicsi

Marital Status (15+)i

Veteransi

1,044(8.1% of civilian adults)

Health Insurancei

92.7%Insured

7.3%Uninsured