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/WINNEBAGO

Winnebago ZIP code, Illinois

The ZIP code for Winnebago, IL is 61088, and its area codes are 815 and 779.

USPS city name
1 ZIP code
Population
2,981
Area codes
815, 779

Winnebago in numbers

About 2,981 people live in Winnebago, in 1,134 households. The median household income is $92,614 a year, 11% above the Illinois median of $83,390 (US: $80,734). The median owner-occupied home is valued at $194,000 (26% below the Illinois median), and median gross rent is $992 a month. The median age is 39.6; 30.0% of adults 25 and over hold a bachelor's degree or higher (37.8% across Illinois); the average commute takes 25 minutes.

Population2,981Winnebago2,981
Households1,134Winnebago1,134
Median age39.6Winnebago39.6Illinois39.0US 38.9
Median household income$92,614Winnebago$92,614Illinois$83,390US $80,734
Median home value$194,000Winnebago$194,000Illinois$263,300US $332,700
Median gross rent$992Winnebago$992Illinois$1,274US $1,413
Bachelor's degree or higher30.0%Winnebago30.0%Illinois37.8%US 35.7%
Mean commute25.3 minWinnebago25.3 minIllinois27.8 minUS 26.4 min
Population density1,541 / sq miWinnebago1,541 / sq mi

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

ZIP codes addressed as Winnebago

ZIP codes with the USPS city name Winnebago
ZIP City Type Population Median income Median home
61088 Winnebago , IL Standard 6,167 $98,088 $208,700

Map of Winnebago ZIP codes

61088

The ZIP codes of Winnebago, 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 Winnebago

The nearest larger towns are Rockford (147,521 people, 8.7 mi), Byron (3,743 people, 10 mi) and Machesney Park (22,630 people, 13 mi).

Towns near Winnebago
TownPopulationDistance
Rockford 147,521 8.7 mi
Byron 3,743 10.2 mi
Machesney Park 22,630 12.8 mi
Davis Junction 2,757 12.9 mi
Loves Park 23,502 13.0 mi
Cherry Valley 3,749 13.4 mi
Rockton 7,974 15.2 mi
Roscoe 10,706 15.9 mi
Belvidere 24,752 17.7 mi
Mount Morris 2,726 18.1 mi
Oregon 3,851 18.3 mi
South Beloit 7,946 18.4 mi
Candlewick Lake 5,448 19.5 mi
Freeport 23,505 20.5 mi

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

Cite this page

zipcodes.pro. “Winnebago, IL ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/il/winnebago

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