St. John, Indiana Population 2020

18,917

St. John is a city located in Indiana. With a 2020 population of 18,917, it is the 48th largest city in Indiana and the 1933rd largest city in the United States. St. John is currently growing at a rate of 2.35% annually and its population has increased by 27.39% since the most recent census, which recorded a population of 14,850 in 2010. Spanning over 13 miles, St. John has a population density of 1,520 people per square mile.

The average household income in St. John is $124,158 with a poverty rate of 3.32%. The median rental costs in recent years comes to $799 per month, and the median house value is $283,000. The median age in St. John is 43.3 years, 42.9 years for males, and 43.6 years for females. For every 100 females there are 90.7 males.

St. John Demographics

According to the most recent ACS, the racial composition of St. John was:

  • White: 92.89%
  • Two or more races: 2.38%
  • Other race: 2.13%
  • Asian: 1.28%
  • Black or African American: 1.15%
  • Native Hawaiian or Pacific Islander: 0.10%
  • Native American: 0.09%
The current population of St. John, Indiana is 18,917, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 18,047.The last official US Census in 2010 recorded the population at 14,850.

St. John, Indiana Population 2020

Population by Race

Race Population Percentage
White15,64292.89%
Two or More Races4002.38%
Some Other Race3582.13%
Asian2151.28%
Black or African American1931.15%
Native Hawaiian and Other Pacific Islander160.10%
American Indian and Alaska Native150.09%

St. John Population Pyramid 2020

St. John Median Age

43.3


Total

42.9


Male

43.6


Female

St. John Adults

There are 12,377 adults, (2,547 of whom are seniors) in St. John.

St. John Age Dependency

71.3

Age Dependency Ratio

25.9

Old Age Dependency Ratio

45.4

Child Dependency Ratio

St. John Sex Ratio

Female

8,832

52.45%

Male

8,007

47.55%

St. John Households and Families

St. John Renter vs Owner Occupied by Household Type

St. John Household Types

Type Owner Renter
Male100%0%
Married98.8%1.2%
All97.5%2.5%
Non Family94.3%5.7%
Female89.8%10.2%

97.5%

Rate of Home Ownership

Type Count Average Size Owned
All5,6842.9697.5
Married4,1833.3598.8
Non Family9261.1494.3
Female3723.2789.8
Male2032.6100

3.28

Average Family Size

2.96

Average Household Size

3.2%

Unmarried (Opposite Sex)

0.4%

Unmarried (Same Sex)

St. John Education

Education Attained Count Percentage
Less Than 9th Grade1541.38%
9th to 12th Grade2552.29%
High School Graduate3,00926.98%
Some College2,18219.56%
Associates Degree1,23811.10%
Bachelors Degree2,78825.00%
Graduate Degree1,52813.70%

St. John Educational Attainment by Race

Name Total High School Bachelors
White9,9509,7113,863
Hispanic876716255
Other Race25525518
Asian158158126
Multiple Races1507531
Black999941
Native American15156
Islander10

The highest rate of high school graduation is among black people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 79.75%.

Name Average Male Female
Overall$60,638$77,247$46,758
Less Than High School$$$
High School Grad$46,927$54,276$31,331
Some College$53,701$76,436$39,707
Bachelors Degree$69,878$95,174$49,219
Graduate Degree$78,900$107,888$68,125

$60,638

Average Earnings

$77,247

Average Male

$46,758

Average Female

St. John Language

St. John Language by Age

St. John Language

93.10% of St. John residents speak only English, while 6.90% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 3.85% of the population.

St. John Poverty

St. John Poverty by Race

Name Total In Poverty Poverty Rate
White14,5163792.61%
Multiple40011929.75%
Hispanic1,539684.42%
Other35882.23%
Black19321.04%

3.32%

Overall Poverty Rate

2.36%

Male Poverty Rate

4.19%

Female Poverty Rate

Poverty in St. John

The race most likely to be in poverty in St. John is Multiple, with 29.75% below the poverty level.

The race least likely to be in poverty in St. John is Black, with 1.04% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.85%. Among those working part-time, it was 3.68%, and for those that did not work, the poverty rate was 6.18%.

Name Poverty
Less Than High School5.38%
High School4.62%
Some College1.93%
Bachelors or Greater1.78%
Name Poverty
Female Employed1.39%
Male Employed0.91%
Female Unemployed0.00%
Male Unemployed0.00%

St. John Income

St. John Income by Household Type

Name Median Mean
Households$105,198$124,158
Families$111,125$135,047
Married Families$116,142-
Non Families$44,583$63,232

St. John Marital Status

St. John Marital Status

Marriage Rates

65.5%

Overall Marriage Rate

68.5%

Male Marriage Rate

62.7%

Female Marriage Rate

St. John Married by Age and Sex

St. John Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.

St. John Marital Status by Race

St. John Veterans

940

Number of Veterans

898

Male Veterans

42

Female Veterans

War Veterans
Vietnam400
First Gulf War177
Second Gulf War84
Korea80
World War II25
Age Group Veterans
65 to 74297
75+249
35 to 54187
55 to 64157
18 to 3450
Name Veterans % of Total
White9037.82%
Black2418.05%
Hispanic131.31%
2 or More135.44%

$St. John Veterans by Education

4.57%

Veteran Poverty Rate

26.70%

Veteran Disability Rate

St. John Employment Status

64.5%

Labor Force Participation

62.1%

Employment Rate

3.7%

Unemployment Rate

St. John Place of Birth

Origin of Non-Citizens

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

42.87%

Born in Indiana

95.61%

Native Born

4.39%

Foreign Born

1.16%

Non Citizen

Place of Birth

95.61% of St. John residents were born in the United States, with 42.87% having been born in Indiana. 1.16% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

Year Population Growth Annual Growth Rate
202018,9174352.35%
201918,4824352.41%
201818,0478384.87%
201717,2094352.59%
201616,7743081.87%
201516,4663181.97%
201416,1484713.00%
201315,6773382.20%
201215,3391460.96%
201115,1932431.63%
201014,9506,5685.96%
20008,3823,4615.47%
19904,9219472.16%
19803,9740.00%