Chatham is a village in Sangamon County, Illinois, home to about 14,639 people across 7.4 square miles. Its ZIP codes are 62536 and 62629, and parts of 62615 are in Chatham too.
Homes sold for a median of $130 per square foot across 2 ZIP codes in the three months ending August 2026, and 1 of 2 were seller’s markets.
Mostly Chatham; also Springfield
Mostly Chatham; also Springfield
Mostly Auburn; part is in Chatham
Each card is that ZIP code’s whole market, including any part outside Chatham. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Chatham’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | St. Louis Lambert International Airport (STL)73 miles away |
|---|---|
| Closer regional airport | Abraham Lincoln Capital Airport (SPI)12 miles away |
| Nearest city of 250,000+ | St. Louis, MO77 miles away |
| Nearest city of 1 million+ | Chicago, IL183 miles away |
Straight-line distances from the center of Chatham; 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.
Chatham had 14,377 residents in the 2020 census, up 68% since 2000.
It’s the 168th largest of 1,450 towns in Illinois by population.
Sangamon County grew from 71,593 residents in 1900 to 196,343 in 2020.
Sangamon 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 40.5 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Springfield #2, IL weather station (9 miles away).
80,005 jobs at 4,925 businesses in Sangamon County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
51 doctors and other health care providers list an office in Chatham’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 13 |
|---|---|
| Specialist doctors | 1 |
| Dentists | 2 |
| Nurse practitioners and physician assistants | 19 |
| Mental health providers | 10 |
| Physical and occupational therapists | 2 |
| Chiropractors | 4 |
| Pharmacies | 7 |
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.
Parks (4 nearby)
Grocery stores (2 nearby)
Pharmacies (1 nearby)
Libraries (1 nearby)
Museums (1 nearby)
Counts are within about 2 miles 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.
Public schools here are run by Ball Chatham CUSD 5. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Ball Elementary SchoolChatham | Pre-K–4 | 552 | Public | 4.3 mi |
| Chatham Elem SchoolChatham | K–4 | 500 | Public | 0.1 mi |
| Glenwood Elementary SchoolChatham | K–4 | 573 | Public | 1.7 mi |
| Glenwood Intermediate SchChatham | 5–6 | 672 | Public | 2.9 mi |
| Glenwood Middle SchoolChatham | 7–8 | 735 | Public | 2.7 mi |
| Glenwood High SchoolChatham | 9–12 | 1,484 | Public | 1.8 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 Springfield, Auburn and Thayer.
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.