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.

St. Johns, IL Population, Income & Demographics 2026

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Demographics — 2024 ACS 5-Year Estimatesi

Census

Populationi

184

Median Agei

46.4

Race & Ethnicityi

White

76.1%140

Two or More

10.3%19

Asian

9.2%17

Hispanic/Latino

3.8%7

American Indian/Alaska Native

0.5%1

Educational Attainment (Age 25+)i

GED/Alternative

7.7%11

High School Diploma

28.7%41

Some College (<1 yr)

2.8%4

Some College (1+ yr)

14.7%21

Associate's Degree

21%30

Bachelor's Degree

6.3%9

Master's Degree

11.9%17

Professional Degree

0.7%1

HS or Higher

93.7%

BA or Higher

18.9%

Graduate+

12.6%

Housingi

Median Home Valuei

$80,000

Median Renti

$720

Tenure

Owner-Occupied

58.7%54

Renter-Occupied

41.3%38

Total Units

106

Homeownership

58.7%

Vacancy Rate

13.2%

Home Values

Under $50K

27.8%15

$50K–$100K

33.3%18

$100K–$150K

18.5%10

$150K–$200K

11.1%6

$200K–$300K

3.7%2

$300K–$500K

5.6%3

Rent Distribution

Under $500

$500–$750

$750–$1,000

$1,250–$1,500

$1,500–$2,000

Year Built

2020 or later

4.7%5

2010–2019

9.4%10

2000–2009

6.6%7

1990–1999

5.7%6

1980–1989

15.1%16

1970–1979

26.4%28

1960–1969

0.9%1

1950–1959

4.7%5

1940–1949

6.6%7

1939 or earlier

19.8%21

Heating Fuel

Utility Gas

45.7%42

Electricity

43.5%40

Bottled/LP Gas

6.5%6

Solar

4.3%4

Economyi

Median Household Incomei

$62,500

Mean Household Incomei

$66,440

Per Capita Incomei

$33,474

Poverty Ratei

14.1%

Unemploymenti

4.3%

Labor Forcei

117

Household Income Distribution

Under $10K

2.2%2

$10K–$15K

4.3%4

$15K–$20K

2.2%2

$20K–$25K

5.4%5

$30K–$35K

2.2%2

$35K–$40K

7.6%7

$40K–$45K

22.8%21

$45K–$50K

1.1%1

$50K–$60K

2.2%2

$60K–$75K

12%11

$75K–$100K

21.7%20

$100K–$125K

7.6%7

$125K–$150K

3.3%3

$150K–$200K

5.4%5

Ancestry & Heritage

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

Foreign-Born Populationi

Foreign-Borni

94.9%

By Region

Commute & Transportationi

Workersi

112

Avg. Commutei

26.2 min

How People Get to Work

Travel Time to Work

Workforce

Total Employed

112

Occupations

Industries

Social Characteristicsi

Marital Status (15+)i

Veteransi

8(5.1% of civilian adults)

Health Insurancei

89.7%Insured

10.3%Uninsured