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Dupo

Illinoisvillage

Photograph of Dupo
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Dupo

Total population

3,879

Median home value

$113,800

17.8%

Bachelor's+

Median income

$61,644

Dupo$62k
National$74k

Founded

1750

Elevation410 m
Land area6.32 km²
Weather68°F · Showers And Thunderstorms Likely
Coordinates38.52°, -90.22°

Demographic figures from US Census Bureau · ACS 5-year estimates. Overview below cites Wikipedia and may reference a different year.

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Active weather alerts
  • Heat Advisory · Moderate
    Heat Advisory issued September 16 at 11:29AM CDT until September 19 at 8:00PM CDT by NWS St Louis MO

Source: NOAA National Weather Service.

City facts

Founded
1750
Elevation
410 m
Area
6.32 km²

Facts from Wikidata (CC0).

Overview

Dupo is a village in St. Clair County, Illinois, United States. As of the 2020 census, Dupo had a population of 3,996. The village was settled in about 1750 and was incorporated in 1907. Its modern name, adopted in the early 20th century, is shortened from Prairie du Pont.

Read more on Wikipedia

History & geography

History

In the Mississippian period, Dupo was the site of one of several multi-mound communities in the floodplain near Cahokia. These mounds remained standing at least as recently as 1915. The French village of Prairie du Pont was first settled around 1750 by townspeople moving out of Cahokia. It was located at a bridge over what is now known as Prairie du Pont Creek, on the trail from Cahokia to Kaskaskia, which was the first wagon road in Illinois. The settlement may have been motivated by Dupo being located 10–12 feet higher than Cahokia and thus being more protected from floods on the Mississippi River. The Sulpician mission established a mill near the bridge, which became the core of the town's development. The village elected a village council, or syndic, to maintain the fence around the common fields. Among the early inhabitants of Prairie du Pont was the noted gunsmith Philip Creamer, who settled in the area in 1805. At the instigation of the railroad, the name was shortened from Prairie du Pont to Dupo. This led to an oil boom in the town, in which oil wells were sunk in people's front yards. However, the oil boom was short-lived and the economy of the town returned to depending primarily on the rail yard. The crash was caused by a -long freight train breaking in half and the two halves then colliding. A tank car full of methyl isobutyl ketone caught fire.

Geography

Dupo is located in the American Bottom floodplain of the Mississippi River. According to the 2010 census, Dupo has a total area of , all land.

Read full article on Wikipedia

Excerpted from the corresponding Wikipedia article (CC BY-SA).

Demographics & economy

Median age
42.9
Median home value
$113,800
Housing units
1,739
Poverty rate
8.5%
Unemployment
6.2%

Race & ethnicity

White
86.6%
Black
5.5%
Asian
0.5%
Hispanic
1.5%

Source: US Census Bureau — American Community Survey, 5-year estimates.

Geography

Latitude
38.5161
Longitude
-90.2176
Water area
0.02 mi²
View on OpenStreetMap

Coordinates & boundaries from the US Census TIGER/Line shapefiles.

Climate

Current forecast

Overnight
68°F
Showers And Thunderstorms Likely
Monday
77°F
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
Monday Night
62°F
Mostly Cloudy
Tuesday
74°F
Partly Sunny
Tuesday Night
56°F
Partly Cloudy
Wednesday
75°F
Mostly Sunny

Forecast for Dupo, IL from NOAA NWS API.

Air quality

Industrial & pollution facilities

Natural hazard risk

Health (adults)

High blood pressure
32.5%
Diabetes
9.9%
Adult obesity
36.4%
Binge drinking
20.7%
Adult smoking
16.6%
No leisure activity
24.1%

Age-adjusted prevalence estimates from CDC PLACES (latest release).

Walkability

Amenities nearby

Wildlife & biodiversity

Observations (last 5 yrs, 10 mi)
762,922
Distinct species (top 10)
10

Most-observed species

  • Northern Cardinal
    Cardinalis cardinalis (Linnaeus, 1758) · Aves
    35,153
  • American Robin
    Turdus migratorius Linnaeus, 1766 · Aves
    33,162
  • Mourning Dove
    Zenaida macroura (Linnaeus, 1758) · Aves
    27,430
  • European Starling
    Sturnus vulgaris Linnaeus, 1758 · Aves
    26,245
  • Blue Jay
    Cyanocitta cristata (Linnaeus, 1758) · Aves
    25,088
  • House Finch
    Haemorhous mexicanus (P.L.Statius Müller, 1776) · Aves
    20,747
  • Downy Woodpecker
    Dryobates pubescens (Linnaeus, 1766) · Aves
    20,602
  • House Sparrow
    Passer domesticus (Linnaeus, 1758) · Aves
    17,396

Citizen-science & research observations from the Global Biodiversity Information Facility (GBIF).

Schools

Total
30
Elementary
14
Middle
7
High
8
Other
1

Largest nearby schools

  • Belleville High School-West
    High · Belleville · 2,234 students · 17.2:1 ratio
  • East St Louis Senior High School
    High · East Saint Louis · 1,299 students · 15.8:1 ratio
  • Cahokia High School
    High · Cahokia · 845 students · 16.6:1 ratio
  • Wirth/Parks Middle School
    Middle · Cahokia · 617 students · 15.8:1 ratio
  • Mason/Clark Middle Sch
    Middle · East Saint Louis · 615 students · 11.2:1 ratio
  • Bluffview Elem School
    Elementary · Dupo · 511 students · 13.4:1 ratio
  • Millstadt Consolidated School
    Middle · Millstadt · 470 students · 15.2:1 ratio
  • East St Louis-Lincoln Middle Sch
    Middle · East Saint Louis · 446 students · 8.9:1 ratio

Public K–12 schools within ~10 mi from Urban Institute Education Data Portal (NCES Common Core of Data, 2022).

Earthquake history

Photos

Sights & places nearby

Notable people from here

People born within ~10 km, from Wikidata (CC0). Click any name for their Wikipedia article.

Nearby places in Illinois

Browse all places in Illinois →

Geography & sun

Avg solar (kWh/m²/day)
4.17
Annual solar (kWh/m²)
1,522

Elevation, sunrise/sunset and daylight from Open-Meteo. Solar climatology from NASA POWER.

Nearby airports

Public attention

Wikipedia views (last 30 days)
447
Avg daily Wikipedia views
15
Attention level
Obscure

Pageview totals from the Wikimedia Pageviews API.

Books about Dupo

Search results from Open Library.

Recent natural events nearby

Ground air-quality sensors

Recently spotted species

Research-grade observations from iNaturalist (within ~15 mi).

Nearest stream gauge

Site
Martigney Creek near Arnold, MO
Distance
4.4 mi
Streamflow
21.6 cfs
Gage height
3.5 ft

Live readings from USGS NWIS · measured 2026-09-21 03:00 UTC.

Events

Sources

  • • Wikipedia
  • • US Census Bureau (ACS 5-year estimates)
  • • NOAA National Weather Service
  • • Wikidata
  • • USGS NWIS (water data)
  • • NCES via Urban Institute Education Data Portal
  • • GBIF (Global Biodiversity Information Facility)
  • • iNaturalist
  • • CDC PLACES
  • • Open-Meteo / sunrise-sunset.org
  • • Wikipedia Pageviews API
  • • Open Library