Oswego is a village in Kendall County, Illinois, home to about 36,375 people across 15 square miles. Its ZIP code is 60543, and parts of 60560 are in Oswego too.
Homes sold for a median of $206 per square foot in the three months ending August 2026, a seller’s market.
Mostly Oswego; also Plainfield and Montgomery
Mostly Yorkville; part is in Oswego
Each card is that ZIP code’s whole market, including any part outside Oswego. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Oswego’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Chicago O'Hare International Airport (ORD)31 miles away |
|---|---|
| Nearest city of 250,000+ | Chicago, IL36 miles away |
Straight-line distances from the center of Oswego; 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.
Oswego had 34,585 residents in the 2020 census, up 160% since 2000.
It’s the 50th largest of 1,450 towns in Illinois by population.
Kendall County grew from 11,467 residents in 1900 to 131,869 in 2020.
Kendall 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 16°F. About 39.7 inches of rain and melted snow fall in a typical year, with about 28 inches of snow.
Source: NOAA 1991–2020 climate normals, Aurora, IL weather station (7 miles away).
25,500 jobs at 2,548 businesses in Kendall County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
305 doctors and other health care providers list an office in Oswego.
Nearest hospitals
Providers with an office here
| Primary care doctors | 28 |
|---|---|
| Specialist doctors | 6 |
| Dentists | 33 |
| Nurse practitioners and physician assistants | 32 |
| Mental health providers | 117 |
| Physical and occupational therapists | 64 |
| Optometrists | 10 |
| Chiropractors | 15 |
| 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 (42 nearby)
Grocery stores (2 nearby)
Pharmacies (2 nearby)
Libraries (1 nearby)
Museums (1 nearby)
Theaters and performance venues
Counts are within about 2.5 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.
Established in 1833.
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by CUSD 308, Grundy/Kendall ROE. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Brokaw Early Learning CenterOswego | Pre-K | 345 | Public | 3.0 mi |
| Churchill Elem SchoolOswego | K–5 | 425 | Public | 2.9 mi |
| East View Academy SchoolOswego | K–12 | — | Alternative Education | 0.4 mi |
| Fox Chase Elementary SchoolOswego | K–5 | 661 | Public | 1.1 mi |
| Hunt Club ElemOswego | K–5 | 357 | Public | 2.4 mi |
| Old Post Elementary SchoolOswego | K–5 | 387 | Public | 1.9 mi |
| Prairie Point Elem SchoolOswego | K–5 | 455 | Public | 0.9 mi |
| Southbury Elem SchoolOswego | K–5 | 676 | Public | 1.3 mi |
| Oswego GOALOswego | 6–12 | — | Alternative Education | 0.4 mi |
| Plank Junior HighOswego | 6–8 | 595 | Public | 2.8 mi |
| Thompson Jr High SchoolOswego | 6–8 | 832 | Public | 1.2 mi |
| Traughber Jr High SchoolOswego | 6–8 | 1,070 | Public | 1.3 mi |
| Oswego East High SchoolOswego | 9–12 | 2,758 | Public | 3.8 mi |
| Oswego High SchoolOswego | 9–12 | 2,870 | Public | 0.5 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 Yorkville, Plainfield, Montgomery, Joliet, Plattville and Millbrook.
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.