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/STILLMAN-VALLEY

Stillman Valley ZIP code, Illinois

The ZIP code for Stillman Valley, IL is 61084, and its area code is 815.

USPS city name
1 ZIP code
Population
1,260
Area code
815

Stillman Valley in numbers

About 1,260 people live in Stillman Valley, in 476 households. The median household income is $87,833 a year, 5% above the Illinois median of $83,390 (US: $80,734). The median owner-occupied home is valued at $175,800 (33% below the Illinois median), and median gross rent is $1,307 a month. The median age is 38.9; 29.4% of adults 25 and over hold a bachelor's degree or higher (37.8% across Illinois); the average commute takes 23 minutes.

Population1,260Stillman Valley1,260
Households476Stillman Valley476
Median age38.9Stillman Valley38.9Illinois39.0US 38.9
Median household income$87,833Stillman Valley$87,833Illinois$83,390US $80,734
Median home value$175,800Stillman Valley$175,800Illinois$263,300US $332,700
Median gross rent$1,307Stillman Valley$1,307Illinois$1,274US $1,413
Bachelor's degree or higher29.4%Stillman Valley29.4%Illinois37.8%US 35.7%
Mean commute23.1 minStillman Valley23.1 minIllinois27.8 minUS 26.4 min
Population density2,211 / sq miStillman Valley2,211 / sq mi

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

ZIP codes addressed as Stillman Valley

ZIP codes with the USPS city name Stillman Valley
ZIP City Type Population Median income Median home
61084 Stillman Valley , IL Standard 3,201 $102,817 $214,100

Map of Stillman Valley ZIP codes

The ZIP codes of Stillman Valley, 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 Stillman Valley

The nearest larger towns are Davis Junction (2,757 people, 4.6 mi), Byron (3,743 people, 4.6 mi) and Oregon (3,851 people, 10 mi).

Towns near Stillman Valley
TownPopulationDistance
Davis Junction 2,757 4.6 mi
Byron 3,743 4.6 mi
Oregon 3,851 10.3 mi
Winnebago 2,981 11.5 mi
Rockford 147,521 12.2 mi
Mount Morris 2,726 13.4 mi
Cherry Valley 3,749 13.8 mi
Rochelle 9,529 14.2 mi
Loves Park 23,502 18.5 mi
Belvidere 24,752 18.6 mi
Machesney Park 22,630 19.8 mi
Candlewick Lake 5,448 23.2 mi
Dixon 14,910 23.7 mi
Roscoe 10,706 23.8 mi

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

Cite this page

zipcodes.pro. “Stillman Valley, IL ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/il/stillman-valley

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