St. Johns, Arizona Population 2020

3,555
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St. Johns is a city located in Arizona. With a 2020 population of 3,555, it is the 70th largest city in Arizona and the 5737th largest city in the United States. St. Johns is currently growing at a rate of 0.54% annually and its population has increased by 2.16% since the most recent census, which recorded a population of 3,480 in 2010. Spanning over 26 miles, St. Johns has a population density of 137 people per square mile.

The average household income in St. Johns is $60,945 with a poverty rate of 15.19%. The median rental costs in recent years comes to $523 per month, and the median house value is $88,700. The median age in St. Johns is 32.3 years, 32.9 years for males, and 30.9 years for females. For every 100 females there are 86.7 males.

St. Johns Demographics

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

  • White: 82.49%
  • Native American: 10.06%
  • Two or more races: 5.63%
  • Other race: 1.14%
  • Black or African American: 0.69%
  • Asian: 0.00%
  • Native Hawaiian or Pacific Islander: 0.00%
The current population of St. Johns, Arizona is 3,555, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 3,517.The last official US Census in 2010 recorded the population at 3,480.

St. Johns, Arizona Population 2020

Population by Race

Race Population Percentage
White2,88782.49%
American Indian and Alaska Native35210.06%
Two or More Races1975.63%
Some Other Race401.14%
Black or African American240.69%
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St. Johns Population Pyramid 2020

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St. Johns Median Age

32.3


Total

32.9


Male

30.9


Female

St. Johns Adults

There are 2,471 adults, (411 of whom are seniors) in St. Johns.

St. Johns Age Dependency

69.9

Age Dependency Ratio

20

Old Age Dependency Ratio

50

Child Dependency Ratio

St. Johns Sex Ratio

Female

1,875

53.57%

Male

1,625

46.43%

St. Johns Households and Families

St. Johns Renter vs Owner Occupied by Household Type

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St. Johns Household Types

Type Owner Renter
Non Family100%0%
All75.1%24.9%
Married73.8%26.2%
Female65.7%34.3%
Male47.5%52.5%

75.1%

Rate of Home Ownership

Type Count Average Size Owned
All9973.4375.1
Married5953.5973.8
Female2074.5765.7
Non Family1551.29100
Male403.2547.5

3.82

Average Family Size

3.43

Average Household Size

0%

Unmarried (Opposite Sex)

0.5%

Unmarried (Same Sex)

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St. Johns Education

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Education Attained Count Percentage
Less Than 9th Grade884.42%
9th to 12th Grade1587.94%
High School Graduate55828.05%
Some College82141.28%
Associates Degree1728.65%
Bachelors Degree1045.23%
Graduate Degree884.42%
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St. Johns Educational Attainment by Race

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Name Total High School Bachelors
White1,2711,223192
Hispanic615441
Native American101101
Other Race4032
Black24
Multiple Races99

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

The highest rate of bachelors degrees is among white people with a rate of 15.11%.

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Name Average Male Female
Overall$40,327$46,100$34,787
Less Than High School$15,379$15,379$
High School Grad$40,043$40,668$
Some College$36,092$66,227$33,883
Bachelors Degree$50,600$$
Graduate Degree$$$

$40,327

Average Earnings

$46,100

Average Male

$34,787

Average Female

St. Johns Language

St. Johns Language by Age

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St. Johns Language

79.61% of St. Johns residents speak only English, while 20.39% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 18.42% of the population.

St. Johns Poverty

St. Johns Poverty by Race

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Name Total In Poverty Poverty Rate
Hispanic1,35828220.77%
White1,7881689.40%
Multiple19712764.47%
Native3386519.23%
Black44100.00%

15.19%

Overall Poverty Rate

10.77%

Male Poverty Rate

18.83%

Female Poverty Rate

Poverty in St. Johns

The race most likely to be in poverty in St. Johns is Black, with 100.00% below the poverty level.

The race least likely to be in poverty in St. Johns is White, with 9.40% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.83%. Among those working part-time, it was 30.77%, and for those that did not work, the poverty rate was 16.18%.

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Name Poverty
Less Than High School29.86%
Some College17.95%
High School15.09%
Bachelors or Greater0.00%
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Name Poverty
Female Unemployed0.00%
Male Unemployed100.00%
Female Employed15.86%
Male Employed10.00%

St. Johns Income

St. Johns Income by Household Type

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Name Median Mean
Households$57,929$60,945
Families$59,706$66,698
Married Families$76,471-
Non Families-$29,695
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St. Johns Marital Status

St. Johns Marital Status

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Marriage Rates

48.3%

Overall Marriage Rate

54.4%

Male Marriage Rate

42.8%

Female Marriage Rate

St. Johns Married by Age and Sex

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St. Johns Marriage

The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 55-64.

St. Johns Marital Status by Race

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St. Johns Veterans

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86

Number of Veterans

86

Male Veterans

Female Veterans

War Veterans
Vietnam37
First Gulf War22
World War II
Korea
Second Gulf War
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Age Group Veterans
65 to 7461
35 to 5425
75+
55 to 64
18 to 34
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St. Johns Veterans by Education

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0.00%

Veteran Poverty Rate

17.44%

Veteran Disability Rate

St. Johns Employment Status

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45.3%

Labor Force Participation

44.5%

Employment Rate

1.6%

Unemployment Rate

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Origin of Non-Citizens

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

Origin of Naturalized Citizens

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71.77%

Born in Arizona

96.09%

Native Born

3.91%

Foreign Born

3.06%

Non Citizen

0.86%

Naturalized

Place of Birth

96.09% of St. Johns residents were born in the United States, with 71.77% having been born in Arizona. 3.06% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Year Population Growth Annual Growth Rate
20203,555190.54%
20193,536190.54%
20183,517120.34%
20173,505190.55%
20163,486210.61%
20153,465-43-1.23%
20143,508-26-0.74%
20133,534-3-0.08%
20123,537240.68%
20113,513190.54%
20103,4942250.67%
20003,269-25-0.08%
19903,294-74-0.22%
19803,3680.00%