Round Lake is a village in Lake County, Illinois, home to about 18,628 people across 5.6 square miles. It has no ZIP code of its own: it’s part of 60041 and 60073.
Homes sold for a median of $194 per square foot across 2 ZIP codes in the three months ending August 2026, and all of them were seller’s markets.
Mostly Long Lake; part is in Round Lake
Mostly Round Lake Beach; part is in Round Lake
Each card is that ZIP code’s whole market, including any part outside Round Lake. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Round Lake’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)28 miles away |
|---|---|
| Nearest city of 250,000+ | Chicago, IL42 miles away |
Straight-line distances from the center of Round Lake; 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.
Round Lake had 18,721 residents in the 2020 census, up 220% since 2000.
It’s the 132nd largest of 1,450 towns in Illinois by population.
Lake County grew from 34,504 residents in 1900 to 714,342 in 2020.
Lake County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 82°F in summer, and winter lows average 15°F. About 37.7 inches of rain and melted snow fall in a typical year, with about 43 inches of snow.
Source: NOAA 1991–2020 climate normals, Lake Villa 2ne, IL weather station (5 miles away).
337,069 jobs at 20,076 businesses in Lake County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
143 doctors and other health care providers list an office in Round Lake’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 17 |
|---|---|
| Specialist doctors | 2 |
| Dentists | 23 |
| Nurse practitioners and physician assistants | 11 |
| Mental health providers | 59 |
| Physical and occupational therapists | 21 |
| Chiropractors | 10 |
| Pharmacies | 6 |
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 (20 nearby)
Grocery stores (7 nearby)
Pharmacies (1 nearby)
Libraries (1 nearby)
Museums
Theaters and performance venues
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 1908.
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 Big Hollow SD 38, Gavin SD 37, Grayslake CCSD 46 and others. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Big Hollow Primary SchoolIngleside | Pre-K–1 | 387 | Public | 3.0 mi |
| Gavin Central Elementary SchoolIngleside | Pre-K–4 | 467 | Public | 3.3 mi |
| Avon Center Elem SchoolRound Lake Beach | K–4 | 361 | Public | 1.7 mi |
| Park East SchoolRound Lake | K–4 | 312 | Public | 2.6 mi |
| Raymond Ellis Elem SchoolRound Lake Beach | K–5 | 617 | Public | 0.6 mi |
| Round Lake Beach Elem SchoolRound Lake Beach | K–2 | 491 | Public | 0.6 mi |
| W J Murphy Elem SchoolRound Lake Park | K–2 | 414 | Public | 1.0 mi |
| Big Hollow Elem SchoolIngleside | 2–4 | 522 | Public | 3.1 mi |
| Indian Hill Elem SchoolRound Lake Heights | 3–5 | 529 | Public | 1.4 mi |
| Village Elementary SchoolRound Lake | 3–5 | 433 | Public | 1.1 mi |
| Big Hollow Middle SchoolIngleside | 5–8 | 744 | Public | 2.9 mi |
| Gavin South Middle SchoolIngleside | 5–8 | 325 | Public | 2.4 mi |
| Park West SchoolRound Lake | 5–8 | 321 | Public | 2.6 mi |
| Magee Middle SchoolRound Lake | 6–8 | 642 | Public | 0.6 mi |
| Round Lake ALOPRound Lake | 6–12 | — | Alternative Education | 0.4 mi |
| Round Lake Middle SchoolRound Lake Heights | 6–8 | 783 | Public | 1.4 mi |
| Round Lake Senior High SchoolRound Lake | 9–12 | 2,194 | Public | 0.4 mi |
| Round Lake Transition CenterRound Lake | 12 | — | Alternative Education | 0.5 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| St Bede Elementary SchoolIngleside | Pre-K–8 | 165 | Roman Catholic | 3.1 mi |
| Chesterton Academy of the Immaculate HeartVolo | 9–12 | 46 | Roman Catholic | 5.0 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 Round Lake Beach, Round Lake Park, Volo, Round Lake Heights, Long Lake, Hainesville, Fox Lake and Lakemoor.
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.