United States › Illinois › St. Augustine CITY
St. Augustine Illinois · 113 residents (2025 est.) · 0.59 sq mi
Time machine
COMPARE TO 1990 Census 2000 Census 2009 ACS 2010 ACS 2011 ACS 2012 ACS 2013 ACS 2014 ACS 2015 ACS 2016 ACS 2017 ACS 2018 ACS 2019 ACS 2020 ACS 2021 ACS 2022 ACS 2023 ACS
The short version
St. Augustine is home to 92 people in Illinois. The median age is 60.3, about 21 years above the US median. Four-year degrees are less common here than nationally, at 5% of adults. 87% of homes are owner-occupied. The typical home is worth $49,000. The population has fallen 39% since 2000.
At a glance
Older
median age 60.3
US median: 38.9
Less educated
5% hold a bachelor's degree
US average: 36%
More affordable
home values down 32%, inflation adjusted
US median home: $376,019
Section 01
Population & growth from 152 in 2000
113 in 2025 (Census Bureau estimate)
155 / sq mi
−16%since 2009
from 185 / sq mi in 2009
US average: 281
from 47.0 in 2000
US average: 38.9
Population, 1990 – 2024
85 106 128 150 171 1990 2000 2010 2020 2024 St. Augustine Age distribution, 2024
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy from $15,549 in 2000
US average: $44,673
Households earning $100K+
from 6.3% in 2009
US average: 53.3%
from 5.6% in 2000
US average: 12.5%
from 0.324 in 2010
US average: 0.476
Workforce by industry, 2024
Agriculture, forestry, fishing 15.4%
Professional, scientific, technical 7.7%
Education & health services 7.7%
Transportation & warehousing 0%
Arts, entertainment, food 0%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
$49,000
−32%inflation adjusted, since 2000
from $39,300 in 2000
US average: $376,019
from 92.6% in 2000
12.7% rent
from 0.0% in 2009
US average: 10.0%
1.46 people
−22%since 2010
from 1.88 people in 2010
US average: 2.54
from 11.9% in 2009
US average: 22.9%
from 0.0% in 2009
US average: 47.4%
Section 04
Race & ethnicity 2000
White, non-Hispanic 100%(152)
2024
White, non-Hispanic 98.9%(91)
from 9 in 2009
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Section 04 · Origins
Detailed origins & ancestry from 7.4% in 2000
US average: 35.6%
High school or higher
from 81.8% in 2000
US average: 89.6%
from 0.0% in 2000
US average: 14.0%
Section 06
Commute & transportation from 14.3 min in 2000
US average: 26.5
from 87.3% in 2009
US average: 68.9%
from 9.1% in 2009
US average: 8.5%
from 0.0% in 2009
US average: 3.2%
from 0.0% in 2009
US average: 15.0%
from 3.6% in 2009
US average: 2.4%
from 0.0% in 2009
US average: 0.4%
from 7.8% in 2009
US average: 8.3%
Section 07
Work & employment from 10.2% in 2011
US average: 5.2%
from 52.1% in 2011
US average: 63.5%
Women 20-64 in the labor force
from 87.5% in 2020
US average: 74.6%
from 15.8% in 2009
US average: 13.1%
from 19.3% in 2009
US average: 42.5%
Section 08
People & community from 0.0% in 2009
US average: 14.1%
from 14.6% in 2009
US average: 6.2%
from 26.3% in 2012
US average: 13.3%
from 31.3% in 2013
US average: 8.4%
from 47.5% in 2017
US average: 91.0%
Computer in household
from 72.9% in 2020
US average: 95.5%
from 98.5% in 2020
US average: 87.7%
from 100.0% in 2016
US average: 77.7%
from 0.0% in 2016
US average: 13.6%
Marital status
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 31.3% in 2013
US average: 8.4%
from 53.4% in 2020
US average: 54.8%
Direct-purchase
from 16.5% in 2020
US average: 13.8%
from 16.5% in 2020
US average: 18.4%
from 29.3% in 2020
US average: 20.9%
VA health care
from 6.0% in 2020
US average: 2.2%
Any private
from 75.9% in 2020
US average: 67.1%
Any public
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)
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
Drill deeper
Places similar to St. Augustine Head to head
Compare St. Augustine to nearby cities ST. AUGUSTINE VS
Galesburg
Income $48,297
Home value $96,400 +97%
Population 28,581 +25193%
SEE FULL COMPARISON →
ST. AUGUSTINE VS
Monmouth
Income $61,138
Home value $86,800 +77%
Population 8,599 +7510%
SEE FULL COMPARISON →
ST. AUGUSTINE VS
Canton
Income $53,254
Home value $107,100 +119%
Population 13,297 +11667%
SEE FULL COMPARISON →
ST. AUGUSTINE VS
Macomb
Income $44,411
Home value $103,300 +111%
Population 14,530 +12758%
SEE FULL COMPARISON →
Frequently asked
How many people live in St. Augustine, Illinois? St. Augustine, Illinois has about 92 residents according to the 2024 American Community Survey.
Is St. Augustine, Illinois expensive? In St. Augustine, Illinois, the median home is worth about $49,000.
How educated are people in St. Augustine, Illinois? About 4.8% 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 23.9% 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 72 residents, a change of about -44 percent over that period.
Keep going
Explore from here 