Holcomb is a community in Ogle County, Illinois, home to about 152 people across 0.1 square miles. Its ZIP code is 61043, and parts of 61020 are in Holcomb too.
Homes sold for a median of $164 per square foot in the three months ending August 2026, a seller’s market.
Mostly Holcomb
Mostly Rockford; part is in Holcomb
Each card is that ZIP code’s whole market, including any part outside Holcomb. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Holcomb’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Chicago O'Hare International Airport (ORD)61 miles away |
|---|---|
| Closer regional airport | Chicago Rockford International Airport (RFD)9 miles away |
| Nearest city of 250,000+ | Madison, WI72 miles away |
| Nearest city of 1 million+ | Chicago, IL74 miles away |
Straight-line distances from the center of Holcomb; 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.
It’s the 1266th largest of 1,450 towns in Illinois by population.
Ogle County grew from 29,129 residents in 1900 to 51,788 in 2020.
Ogle 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 15°F. About 37.2 inches of rain and melted snow fall in a typical year, with about 37 inches of snow.
Source: NOAA 1991–2020 climate normals, Rockford Gtr Rockford Ap, IL weather station (8 miles away).
13,596 jobs at 1,053 businesses in Ogle 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.
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Shares ZIP codes with Rockford and Davis Junction.
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.