Gillespie is a city in Macoupin County, Illinois, home to about 2,815 people across 1.5 square miles. Its ZIP code is 62033.
Homes sold for a median of $109 per square foot in the three months ending August 2026, a balanced market.
Mostly Gillespie; also East Gillespie and Mount Clare
Each card is that ZIP code’s whole market, including any part outside Gillespie. 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)39 miles away |
|---|---|
| Nearest city of 250,000+ | St. Louis, MO41 miles away |
| Nearest city of 1 million+ | Chicago, IL218 miles away |
Straight-line distances from the center of Gillespie; 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.
Gillespie had 3,168 residents in the 2020 census, down 7% since 2000.
It’s the 438th largest of 1,450 towns in Illinois by population.
Macoupin County grew from 42,256 residents in 1900 to 44,967 in 2020.
Macoupin County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 86°F in summer, and winter lows average 19°F. About 39.9 inches of rain and melted snow fall in a typical year, with about 17 inches of snow.
Source: NOAA 1991–2020 climate normals, Carlinville, IL weather station (11 miles away).
7,626 jobs at 813 businesses in Macoupin County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
31 doctors and other health care providers list an office in Gillespie.
Nearest hospitals
Providers with an office here
| Primary care doctors | 4 |
|---|---|
| Dentists | 5 |
| Nurse practitioners and physician assistants | 14 |
| Mental health providers | 4 |
| Physical and occupational therapists | 3 |
| Chiropractors | 1 |
| Pharmacies | 3 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Grocery stores
Pharmacies
Libraries
Museums
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.
Notable people born here
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Gillespie CUSD 7. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Ben-Gil Elementary SchoolGillespie | Pre-K–5 | 523 | Public | 0.9 mi |
| Gillespie Middle SchoolGillespie | 6–8 | 244 | Public | 1.1 mi |
| Gillespie High SchoolGillespie | 9–12 | 328 | Public | 1.0 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with East Gillespie, Mount Clare and Dorchester.
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.