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zipcodes.pro — CITY/IL/STERLING

Sterling ZIP code, Illinois

The ZIP code for Sterling, IL is 61081, and its area codes are 815 and 779.

USPS city name
1 ZIP code
Population
14,717
Area codes
815, 779

Sterling in numbers

About 14,717 people live in Sterling, in 6,579 households. The median household income is $57,350 a year, 31% below the Illinois median of $83,390 (US: $80,734). The median owner-occupied home is valued at $108,700 (59% below the Illinois median), and median gross rent is $859 a month. The median age is 42.6; 21.1% of adults 25 and over hold a bachelor's degree or higher (37.8% across Illinois); the average commute takes 18 minutes.

Population14,717Sterling14,717
Households6,579Sterling6,579
Median age42.6Sterling42.6Illinois39.0US 38.9
Median household income$57,350Sterling$57,350Illinois$83,390US $80,734
Median home value$108,700Sterling$108,700Illinois$263,300US $332,700
Median gross rent$859Sterling$859Illinois$1,274US $1,413
Bachelor's degree or higher21.1%Sterling21.1%Illinois37.8%US 35.7%
Mean commute18.1 minSterling18.1 minIllinois27.8 minUS 26.4 min
Population density2,475 / sq miSterling2,475 / sq mi

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

ZIP codes addressed as Sterling

ZIP codes with the USPS city name Sterling
ZIP City Type Population Median income Median home
61081 Sterling , IL Standard 20,844 $67,586 $123,400

Map of Sterling ZIP codes

61081

The ZIP codes of Sterling, 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 Sterling

The nearest larger towns are Dixon (14,910 people, 12 mi), Clinton, IA (24,322 people, 28 mi) and Freeport (23,505 people, 34 mi).

Towns near Sterling
TownPopulationDistance
Rock Falls 8,587 1.9 mi
Dixon 14,910 11.6 mi
Morrison 3,739 13.7 mi
Mount Morris 2,726 22.0 mi
Oregon 3,851 23.7 mi
Fulton 3,709 24.3 mi
Clinton, IA 24,322 28.3 mi
Camanche, IA 4,550 29.9 mi

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

Cite this page

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

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