St. John

Population: 21,639
Median household income: $127,449
Median home value: $370,800

St. John, a community in Lake County, Indiana, has 21,639 residents. At $127,449, its median household income sits above Lake County's $68,985.

Between 2019 and 2023, St. John's population grew 24.2% from 17,426 to 21,639, while its median home value rose 27.8% from $290,200 to $370,800.

White (non-Hispanic) residents are the largest group, 80.5% of the population. 80.5% of workers drive to work alone.

Demographics

ACS 2019–2023

Population: 21,639
Median age: 41.4 yrs
Median household income: $127,449
Median home value: $370,800
Median gross rent: $971
Housing units: 7,614
Homeownership rate: 98.1%
Bachelor's degree or higher: 42.9%
Unemployment rate: 3.2%

Trends

ACS 5-year · 2019–2023

Population

17,42621,639

Median household income

$105,852$127,449

Median home value

$290,200$370,800

Median gross rent

$908$971

Year	Population	Median household income	Median home value	Median gross rent
2019	17,426	$105,852	$290,200	$908
2020	18,382	$103,851	$279,700	$955
2021	19,805	$115,230	$303,100	$872
2022	20,727	$123,799	$346,900	$909
2023	21,639	$127,449	$370,800	$971

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 55.2%

5 to 1719.7%

18 to 248.1%

25 to 348.0%

35 to 4413.0%

45 to 5415.2%

55 to 6412.3%

65 to 7411.9%

75 and over6.6%

	Count	Share
Under 5	1,127	5.2%
5 to 17	4,261	19.7%
18 to 24	1,756	8.1%
25 to 34	1,739	8.0%
35 to 44	2,807	13.0%
45 to 54	3,295	15.2%
55 to 64	2,662	12.3%
65 to 74	2,573	11.9%
75 and over	1,419	6.6%

Race & ethnicity

	Count	Share
White (non-Hispanic)	17,424	80.5%
Black or African American	598	2.8%
American Indian & Alaska Native	19	0.1%
Asian	525	2.4%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	462	2.1%
Two or more races	312	1.4%
Hispanic or Latino (any race)	2,299	10.6%

Educational attainment (age 25+)

No high school diploma5.3%

High school graduate22.6%

Some college or associate's29.2%

Bachelor's degree28.9%

Graduate or professional degree14.0%

	Count	Share
No high school diploma	771	5.3%
High school graduate	3,273	22.6%
Some college or associate's	4,237	29.2%
Bachelor's degree	4,189	28.9%
Graduate or professional degree	2,025	14.0%

Commute to work

Mean travel time to work: 32 min

Drove alone80.5%

Carpooled4.4%

Public transit1.8%

Walked1.0%

Bicycle0.0%

Worked from home11.4%

Other means1.0%

How workers get to work

	Count	Share
Drove alone	8,372	80.5%
Carpooled	456	4.4%
Public transit	185	1.8%
Walked	101	1.0%
Bicycle	0	0.0%
Worked from home	1,191	11.4%
Other means	99	1.0%

Travel time

	Count	Share
Under 15 min	1,517	16.5%
15 to 29 min	3,143	34.1%
30 to 44 min	2,051	22.3%
45 to 59 min	1,135	12.3%
60+ min	1,367	14.8%

Households

Average household size: 2.87
Poverty rate: 2.3% (494 of 21,597)

	Count	Share
Family households	6,140	81.6%
Nonfamily households	1,382	18.4%

Housing

Median year structure built: 2002

Occupancy

	Count	Share
Occupied	7,522	98.8%
Vacant	92	1.2%

Tenure (of occupied units)

	Count	Share
Owner-occupied	7,380	98.1%
Renter-occupied	142	1.9%

1-unit, detached84.7%

1-unit, attached12.7%

2 to 4 units1.7%

5 to 19 units0.0%

20 or more units0.6%

Mobile home & other0.4%

Units in structure

	Count	Share
1-unit, detached	6,446	84.7%
1-unit, attached	969	12.7%
2 to 4 units	126	1.7%
5 to 19 units	0	0.0%
20 or more units	42	0.6%
Mobile home & other	31	0.4%

Geography

Place GEOID: 1866852
Type (LSAD): 43
Land area: 13 sq mi
Water area: 0.09 sq mi
Center point: 41.4418, -87.4678