Harrisburg is a city in Saline County, Illinois, home to about 8,372 people across 6.6 square miles. Its ZIP code is 62946, and parts of 62965 are in Harrisburg too.
Homes sold for a median of $85 per square foot in the three months ending August 2026, a buyer’s market.
Mostly Harrisburg; also Muddy
Mostly Muddy; part is in Harrisburg
Each card is that ZIP code’s whole market, including any part outside Harrisburg. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Harrisburg’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)122 miles away |
|---|---|
| Closer regional airport | Veterans Airport of Southern Illinois (MWA)26 miles away |
| Nearest city of 250,000+ | St. Louis, MO112 miles away |
| Nearest city of 1 million+ | Chicago, IL288 miles away |
Straight-line distances from the center of Harrisburg; 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.
Harrisburg had 8,219 residents in the 2020 census, down 17% since 2000.
It’s the 257th largest of 1,450 towns in Illinois by population.
Saline County grew from 21,685 residents in 1900 to 23,768 in 2020.
Saline County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 89°F in summer, and winter lows average 24°F. About 47.7 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Harrisburg, IL weather station (about a mile away).
5,502 jobs at 538 businesses in Saline County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
101 doctors and other health care providers list an office in Harrisburg.
Nearest hospitals
Providers with an office here
| Primary care doctors | 17 |
|---|---|
| Specialist doctors | 8 |
| Dentists | 4 |
| Nurse practitioners and physician assistants | 28 |
| Mental health providers | 19 |
| Physical and occupational therapists | 11 |
| Optometrists | 5 |
| Chiropractors | 9 |
| 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 (6 nearby)
Grocery stores (3 nearby)
Pharmacies (2 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.
Established in 1847.
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 Harrisburg CUSD 3, IDJJ Sch Dist 428. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Bulldog Early Learning AcademyHarrisburg | Pre-K | 111 | Public | 1.5 mi |
| West Side Primary SchoolHarrisburg | K–2 | 400 | Public | 0.6 mi |
| East Side Intermediate SchoolHarrisburg | 3–5 | 397 | Public | 0.8 mi |
| Harrisburg Middle SchoolHarrisburg | 6–8 | 382 | Public | 1.5 mi |
| School District 428 IYC-HRBHarrisburg | 7–12 | 42 | Alternative Education | 1.1 mi |
| Harrisburg High SchoolHarrisburg | 9–12 | 491 | Public | 0.2 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| New Hope Christian Academy of Southern IllinoisHarrisburg | Pre-K–11 | 74 | Christian (no specific denomination) | 1.4 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.
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Shares ZIP codes with Muddy.
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.