Galesburg is a city in Knox County, Illinois, home to about 29,481 people across 18 square miles. Its ZIP codes are 61401 and 61402.
Homes sold for a median of $91 per square foot in the three months ending August 2026, a seller’s market.
Mostly Galesburg
All in Galesburg
Each card is that ZIP code’s whole market, including any part outside Galesburg. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Galesburg’s story and what everyday life there is like, for people thinking about moving in.
Are you a local agent who knows Galesburg well? Agents who advertise here will be able to write the guide. Advertise on OfferBacked
| Nearest major airport | Chicago O'Hare International Airport (ORD)146 miles away |
|---|---|
| Closer regional airport | Quad City International Airport (MLI)35 miles away |
| Nearest city of 250,000+ | Chicago, IL152 miles away |
Straight-line distances from the center of Galesburg; 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.
Galesburg had 30,052 residents in the 2020 census, down 11% since 2000.
It’s the 67th largest of 1,450 towns in Illinois by population.
Knox County grew from 43,612 residents in 1900 to 49,967 in 2020.
Knox 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 inches of rain and melted snow fall in a typical year, with about 26 inches of snow.
Source: NOAA 1991–2020 climate normals, Galesburg, IL weather station (about a mile away).
14,242 jobs at 968 businesses in Knox County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
354 doctors and other health care providers list an office in Galesburg’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 36 |
|---|---|
| Specialist doctors | 66 |
| Dentists | 17 |
| Nurse practitioners and physician assistants | 75 |
| Mental health providers | 94 |
| Physical and occupational therapists | 44 |
| Optometrists | 10 |
| Chiropractors | 12 |
| Pharmacies | 11 |
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 (24 nearby)
Grocery stores (6 nearby)
Pharmacies (4 nearby)
Libraries (2 nearby)
Museums (3 nearby)
Theaters and performance venues (4 nearby)
Counts are within about 3 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.
Established in 1837.
Colleges and universities
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 Galesburg CUSD 205, Henderson/Knox/Mercer/Warren ROE, Knox Warren Spec Ed Districts. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Bright Futures Pre-K ProgGalesburg | Pre-K–K | 176 | Public | 1.0 mi |
| King SchoolGalesburg | K–4 | 510 | Public | 1.7 mi |
| Silas Willard Elem SchoolGalesburg | K–4 | 425 | Public | 0.8 mi |
| Steele SchoolGalesburg | K–4 | 542 | Public | 1.3 mi |
| Lombard Middle SchoolGalesburg | 5–6 | 534 | Public | 1.3 mi |
| Knox Co Mary Davis Detention HomeGalesburg | 6–12 | — | Alternative Education | 1.7 mi |
| RAES East Alt EdGalesburg | 6–12 | — | Alternative Education | 1.0 mi |
| RAES Night SchoolGalesburg | 6–12 | — | Alternative Education | 1.0 mi |
| Raes RsspGalesburg | 6–12 | — | Alternative Education | 1.0 mi |
| RAES WestGalesburg | 6–12 | — | Alternative Education | 1.0 mi |
| RAES West Alt EdGalesburg | 6–12 | — | Alternative Education | 1.0 mi |
| Galesburg Jr High SchoolGalesburg | 7–8 | 518 | Public | 1.3 mi |
| Roe 33 AlopGalesburg | 7–12 | — | Alternative Education | 1.0 mi |
| Galesburg Senior High SchoolGalesburg | 9–12 | 1,158 | Public | 1.3 mi |
| Galesburg Area Voc CtrGalesburg | 10–12 | — | Career and Technical | 1.0 mi |
| Knox-Warren SpEd Multi-Needs ProgGalesburg | — | — | Special Education | 0.4 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Costa Catholic SchoolGalesburg | Pre-K–8 | 115 | Roman Catholic | 2.0 mi |
| Galesburg Christian School AssocGalesburg | Pre-K–12 | 198 | Christian (no specific denomination) | 1.7 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
Buying or selling around Galesburg? Tell us what you need and when. No agents advertise here yet, so we’ll keep your request for up to 30 days and send it to local agents who join. No obligation, and you choose who to work with.
Loading map…
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.