Hamilton is a city in Hancock County, Illinois, home to about 2,714 people across 3.6 square miles. Its ZIP code is 62341, and parts of 62379 are in Hamilton too.
Homes sold for a median of $70 per square foot in the three months ending August 2026, a seller’s market.
Mostly Hamilton
Mostly Warsaw; part is in Hamilton
Each card is that ZIP code’s whole market, including any part outside Hamilton. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Hamilton’s story and what everyday life there is like, for people thinking about moving in.
Are you a local agent who knows Hamilton well? Agents who advertise here will be able to write the guide. Advertise on OfferBacked
| Nearest major airport | St. Louis Lambert International Airport (STL)125 miles away |
|---|---|
| Closer regional airport | Southeast Iowa Regional Airport (BRL)29 miles away |
| Nearest city of 250,000+ | St. Louis, MO135 miles away |
| Nearest city of 1 million+ | Chicago, IL215 miles away |
Straight-line distances from the center of Hamilton; 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.
Hamilton had 2,753 residents in the 2020 census, down 9% since 2000.
It’s the 447th largest of 1,450 towns in Illinois by population.
Hancock County grew from 32,215 residents in 1900 to 17,620 in 2020.
Hancock 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 17°F. About 39.8 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Keokuk Lock Dam 19, IA weather station (2 miles away).
2,706 jobs at 365 businesses in Hancock County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
8 doctors and other health care providers list an office in Hamilton.
Nearest hospitals
Providers with an office here
| Primary care doctors | 1 |
|---|---|
| Dentists | 2 |
| Mental health providers | 3 |
| Physical and occupational therapists | 1 |
| Chiropractors | 1 |
| Pharmacies | 2 |
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
Pharmacies
Libraries (1 nearby)
Museums
Theaters and performance venues
Counts are within about 1.5 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 Hamilton CCSD 328. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Hamilton Elementary SchoolHamilton | Pre-K–8 | 384 | Public | 0.6 mi |
| Hamilton High SchoolHamilton | 9–12 | 193 | Public | 0.1 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 Warsaw and Meyer.
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.