Kirkwood is a village in Warren County, Illinois, home to about 754 people across 0.9 square miles. Its ZIP code is 61447.
Homes sold for a median of $117 per square foot in the three months ending August 2026, a seller’s market.
Each card is that ZIP code’s whole market, including any part outside Kirkwood. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
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| Nearest major airport | St. Louis Lambert International Airport (STL)147 miles away |
|---|---|
| Closer regional airport | Southeast Iowa Regional Airport (BRL)21 miles away |
| Nearest city of 250,000+ | St. Louis, MO156 miles away |
| Nearest city of 1 million+ | Chicago, IL172 miles away |
Straight-line distances from the center of Kirkwood; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Kirkwood had 678 residents in the 2020 census, down 15% since 2000.
It’s the 785th largest of 1,450 towns in Illinois by population.
Warren County grew from 23,163 residents in 1900 to 16,835 in 2020.
Warren County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 84°F in summer, and winter lows average 14°F. About 39.1 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Monmouth 4nw, IL weather station (5 miles away).
5,447 jobs at 351 businesses in Warren County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Nearest hospitals
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances.
Libraries (1 nearby)
Counts are within about 1 mile of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.