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CITY · 2010 ACS

St. Augustine

Illinois · 120 residents · 0.59 sq mi
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The short version

St. Augustine is home to 120 people in Illinois. At a median age of 50.7, this is an older place than the country as a whole. 90% of homes are owner-occupied. 7% of adults hold a bachelor's degree, below the 28% national rate. Households here earn about 57% less than in Illinois as a whole. Median home value sits at $46,700.

At a glance
Lower income
median household income $23,750, below the US median
US median: $52,703
Older
median age 50.7
US median: 37.2
Less educated
7% hold a bachelor's degree
US average: 28%
More affordable
home values down 6%, inflation adjusted
US median home: $225,659
Section 01

Population & growth

120
−21%since 2000
from 152 in 2000
1990 – 2025
202 / sq mi
−21%since 2000
from 256 / sq mi in 2000
US average: 261
50.7
+8%since 2000
from 47.0 in 2000
US average: 37.2
Land area
0.59 sq mi
Population, 1990 – 2024
8510612815017119902000201020202024St. Augustine
202492
1990201020202024
Age distribution, 2010
Under 53.3%(4)
US avg: 6.5%
5 to 94.2%(5)
US avg: 6.6%
10 to 142.5%(3)
US avg: 6.7%
15 to 192.5%(3)
US avg: 7.1%
20 to 246.7%(8)
US avg: 7%
25 to 3415%(18)
US avg: 13.3%
35 to 445%(6)
US avg: 13.3%
45 to 5420.8%(25)
US avg: 14.6%
55 to 6415%(18)
US avg: 11.8%
65 to 748.3%(10)
US avg: 7%
75 to 8412.5%(15)
US avg: 4.2%
85 and over4.2%(5)
US avg: 1.8%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

$23,750
−45%inflation adjusted, since 2000
from $34,375 in 2000
US average: $52,703
1990 – 2023
$15,074
−3%since 2000
from $15,549 in 2000
US average: $27,286
Households earning $100K+
3.9%
−2.3 ptssince 2009
from 6.3% in 2009
US average: 33.3%
12.5%
+6.9 ptssince 2000
from 5.6% in 2000
US average: 13.8%
0.324
US average: 0.461
Workforce by industry, 2010
Other services20%
US avg: 7%
Public administration20%
US avg: 4.9%
Retail trade12.5%
US avg: 10.9%
Finance & insurance10%
US avg: 5.1%
Professional, scientific, technical10%
US avg: 4.2%
Transportation & warehousing7.5%
US avg: 3.1%
Agriculture, forestry, fishing5%
US avg: 1.9%
Construction5%
US avg: 1.4%
Wholesale trade2.5%
US avg: 7.2%
Information2.5%
US avg: 11.5%
Manufacturing0%
US avg: 0.5%
Education & health services0%
US avg: 0.9%
Arts, entertainment, food0%
US avg: 2.4%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

$46,700
−6%inflation adjusted, since 2000
from $39,300 in 2000
US average: $225,659
1990 – 2024
90.0%
−2.6 ptssince 2000
from 92.6% in 2000
10.0% rent
32.9%
+32.9 ptssince 2009
from 0.0% in 2009
US average: 12.1%
1.88 people
US average: 2.60
8.3%
−3.5 ptssince 2009
from 11.9% in 2009
US average: 30.9%
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 46.8%
2.0
+16%since 2009
from 1.7 in 2009
1990 – 2023
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04

Race & ethnicity

2000
White, non-Hispanic100%(152)
Black0%(0)
Hispanic / Latino0%(0)
Asian0%(0)
Other0%
2010
White, non-Hispanic98.3%(118)
Black0%(0)
Hispanic / Latino0.8%(1)
Asian0%(0)
Other6.3%(8)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Ancestry
American24%(23)
Irish17.7%(17)
German14.6%(14)
Swedish11.5%(11)
English6.3%(6)
Dutch4.2%(4)
French2.1%(2)
Polish2.1%(2)
Section 05

Education

7.4%
Unchangedsince 2000
from 7.4% in 2000
US average: 27.9%
High school or higher
60.5%
−21.3 ptssince 2000
from 81.8% in 2000
US average: 84.9%
0.0%
Unchangedsince 2000
from 0.0% in 2000
US average: 10.2%
Section 06

Commute & transportation

42.0 min
+193%since 2000
from 14.3 min in 2000
US average: 25.2
84.2%
−3.1 ptssince 2009
from 87.3% in 2009
US average: 76.2%
10.5%
+1.4 ptssince 2009
from 9.1% in 2009
US average: 10.4%
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 4.7%
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 4.1%
5.3%
+1.6 ptssince 2009
from 3.6% in 2009
US average: 2.8%
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 0.5%
7.8%
Unchangedsince 2009
from 7.8% in 2009
US average: 8.7%
Section 07

Work & employment

20.0%
+4.2 ptssince 2009
from 15.8% in 2009
US average: 12.9%
20.0%
+0.7 ptssince 2009
from 19.3% in 2009
US average: 35.2%
Section 08

People & community

45.8%
+3.1 ptssince 2009
from 42.7% in 2009
54.2%
−3.1 ptssince 2009
from 57.3% in 2009
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 12.8%
8.9%
−5.7 ptssince 2009
from 14.6% in 2009
US average: 9.9%
Marital status (2024)
Men 15+
Never married20.4%(11)
Married37%(20)
Widowed22.2%(12)
Divorced20.4%(11)
Women 15+
Never married3%(1)
Married45.5%(15)
Widowed21.2%(7)
Divorced30.3%(10)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

0.0%
−31.3 ptssince 2013
from 31.3% in 2013
US average: 8.4%
37.0%
−16.4 ptssince 2020
from 53.4% in 2020
US average: 54.8%
Direct-purchase
18.5%
+2.0 ptssince 2020
from 16.5% in 2020
US average: 13.8%
39.1%
+22.6 ptssince 2020
from 16.5% in 2020
US average: 18.4%
34.8%
+5.5 ptssince 2020
from 29.3% in 2020
US average: 20.9%
VA health care
9.8%
+3.8 ptssince 2020
from 6.0% in 2020
US average: 2.2%
Any private
58.7%
−17.2 ptssince 2020
from 75.9% in 2020
US average: 67.1%
Any public
67.4%
+20.8 ptssince 2020
from 46.6% in 2020
US average: 36.7%

Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.

Section 09 · Service history

Veterans

Veterans by period of service, 2024
Gulf War (2001 or later)6.7%(1)
US avg: 26.4%
Gulf War (1990s)0%(0)
US avg: 24.3%
Vietnam era26.7%(4)
US avg: 33.1%
Korean War0%(0)
US avg: 4.5%
World War II0%(0)
US avg: 1%

Share of the 15 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.

BAR + DOT: THIS PLACE · TICK: US AVERAGE
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Frequently asked

How many people live in St. Augustine, Illinois?

St. Augustine, Illinois has about 120 residents according to the 2010 American Community Survey.

What is the median household income in St. Augustine, Illinois?

The typical household in St. Augustine, Illinois earns about $23,750 a year. Half of households make more than that, and half make less.

Is St. Augustine, Illinois expensive?

In St. Augustine, Illinois, the median home is worth about $46,700.

How educated are people in St. Augustine, Illinois?

About 7.4% of adults age 25 and over in St. Augustine, Illinois hold a bachelor's degree or higher.

What is the poverty rate in St. Augustine, Illinois?

About 12.5% of people in St. Augustine, Illinois live below the federal poverty line.

Has St. Augustine, Illinois grown since 1990?

Yes, St. Augustine, Illinois has shrunk since 1990. The population has lost about 44 residents, a change of about -27 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →