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/CAMBRIDGE

Cambridge ZIP code, Illinois

The ZIP code for Cambridge, IL is 61238, and its area code is 309.

USPS city name
1 ZIP code
Population
2,128
Area code
309

Cambridge in numbers

About 2,128 people live in Cambridge, in 823 households. The median household income is $64,979 a year, 22% below the Illinois median of $83,390 (US: $80,734). The median owner-occupied home is valued at $123,100 (53% below the Illinois median), and median gross rent is $968 a month. The median age is 34.7; 15.6% of adults 25 and over hold a bachelor's degree or higher (37.8% across Illinois); the average commute takes 28 minutes.

Population2,128Cambridge2,128
Households823Cambridge823
Median age34.7Cambridge34.7Illinois39.0US 38.9
Median household income$64,979Cambridge$64,979Illinois$83,390US $80,734
Median home value$123,100Cambridge$123,100Illinois$263,300US $332,700
Median gross rent$968Cambridge$968Illinois$1,274US $1,413
Bachelor's degree or higher15.6%Cambridge15.6%Illinois37.8%US 35.7%
Mean commute28.4 minCambridge28.4 minIllinois27.8 minUS 26.4 min
Population density1,069 / sq miCambridge1,069 / sq mi

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

ZIP codes addressed as Cambridge

ZIP codes with the USPS city name Cambridge
ZIP City Type Population Median income Median home
61238 Cambridge , IL Standard 2,549 $64,583 $131,100

Map of Cambridge ZIP codes

61238

The ZIP codes of Cambridge, 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 Cambridge

The nearest larger towns are Geneseo (6,673 people, 11 mi), Galva (2,454 people, 12 mi) and Kewanee (11,913 people, 14 mi).

Towns near Cambridge
TownPopulationDistance
Geneseo 6,673 11.1 mi
Kewanee 11,913 14.3 mi
Colona 5,139 14.5 mi
Coal Valley 4,229 16.4 mi
Silvis 7,955 18.2 mi
East Moline 20,904 18.7 mi
Moline 42,197 20.4 mi
Milan 5,034 21.7 mi
Le Claire, IA 4,735 23.1 mi
Rock Island 36,151 23.8 mi
Bettendorf, IA 39,647 24.1 mi
Galesburg 29,481 25.5 mi
Knoxville 3,211 27.1 mi
Davenport, IA 100,913 28.1 mi

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

Cite this page

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

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