Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/IL/LAKE-SUMMERSET

Lake Summerset ZIP codes, Illinois

No ZIP code is named for Lake Summerset, IL; addresses there use a neighbouring town's name. The ZIP code covering it is 61019. Its area codes are 815 and 779.

USPS city name
0 ZIP codes
Overlapping the city
1 more
Population
2,364
Area codes
815, 779

NANPA lists no telephone rate centre for Lake Summerset itself, so these are the area codes of the nearest one, Davis (0.0 miles). A town on an area-code boundary can differ from its neighbour.

Lake Summerset in numbers

About 2,364 people live in Lake Summerset, in 979 households. The median household income is $108,355 a year, 30% above the Illinois median of $83,390 (US: $80,734). The median owner-occupied home is valued at $237,300 (10% below the Illinois median), and median gross rent is $1,318 a month. The median age is 45.1; 30.5% of adults 25 and over hold a bachelor's degree or higher (37.8% across Illinois); the average commute takes 40 minutes.

Population2,364Lake Summerset2,364
Households979Lake Summerset979
Median age45.1Lake Summerset45.1Illinois39.0US 38.9
Median household income$108,355Lake Summerset$108,355Illinois$83,390US $80,734
Median home value$237,300Lake Summerset$237,300Illinois$263,300US $332,700
Median gross rent$1,318Lake Summerset$1,318Illinois$1,274US $1,413
Bachelor's degree or higher30.5%Lake Summerset30.5%Illinois37.8%US 35.7%
Mean commute40.2 minLake Summerset40.2 minIllinois27.8 minUS 26.4 min
Population density1,116 / sq miLake Summerset1,116 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Lake Summerset CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes covering Lake Summerset

These ZIP codes cover part of Lake Summerset but are addressed as somewhere else.

ZIP codes overlapping Lake Summerset
ZIP City Type Population Median income Median home
61019 Davis , IL Standard 3,461 $105,150 $232,100

Map of Lake Summerset ZIP codes

The ZIP codes of Lake Summerset, IL, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Lake Summerset

The nearest larger towns are Brodhead, WI (3,197 people, 11 mi), Winnebago (2,981 people, 15 mi) and Monroe, WI (10,587 people, 16 mi).

Towns near Lake Summerset
TownPopulationDistance
Brodhead, WI 3,197 11.3 mi
Winnebago 2,981 15.2 mi
Monroe, WI 10,587 16.3 mi
Rockton 7,974 16.7 mi
Freeport 23,505 16.9 mi
South Beloit 7,946 18.6 mi
Roscoe 10,706 19.5 mi
Beloit, WI 36,534 19.6 mi
Machesney Park 22,630 19.6 mi
Rockford 147,521 21.4 mi
Loves Park 23,502 21.5 mi
Lena 2,761 22.6 mi
Evansville, WI 5,782 22.9 mi
Byron 3,743 23.8 mi

More nearby: every ZIP code in Stephenson County · Illinois ZIP codes

Cite this page

zipcodes.pro. “Lake Summerset, IL ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/il/lake-summerset

Underlying data is public domain or openly licensed — sources, vintages and licences.