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/ROCK-ISLAND-ARSENAL

Rock Island Arsenal ZIP codes, Illinois

No ZIP code is named for Rock Island Arsenal, IL; addresses there use a neighbouring town's name. The ZIP code covering it is 61201. Its area codes are 309 and 861.

USPS city name
0 ZIP codes
Overlapping the city
1 more
Population
470
Area codes
309, 861

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

Rock Island Arsenal in numbers

About 470 people live in Rock Island Arsenal, in 94 households. Median gross rent is $1,372 a month. The median age is 39.3; 23.8% of adults 25 and over hold a bachelor's degree or higher (37.8% across Illinois).

Population470Rock Island Arsenal470
Households94Rock Island Arsenal94
Median age39.3Rock Island Arsenal39.3Illinois39.0US 38.9
Median gross rent$1,372Rock Island Arsenal$1,372Illinois$1,274US $1,413
Bachelor's degree or higher23.8%Rock Island Arsenal23.8%Illinois37.8%US 35.7%
Population density299 / sq miRock Island Arsenal299 / sq mi

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

ZIP codes covering Rock Island Arsenal

These ZIP codes cover part of Rock Island Arsenal but are addressed as somewhere else.

ZIP codes overlapping Rock Island Arsenal
ZIP City Type Population Median income Median home
61201 Rock Island , IL Standard 36,766 $59,396 $125,600

Map of Rock Island Arsenal ZIP codes

61201

The ZIP codes of Rock Island Arsenal, 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 Rock Island Arsenal

The nearest larger towns are Moline (42,197 people, 3.4 mi), Rock Island (36,151 people, 4.0 mi) and Davenport, IA (100,913 people, 4.3 mi).

Towns near Rock Island Arsenal
TownPopulationDistance
Moline 42,197 3.4 mi
Rock Island 36,151 4.0 mi
Davenport, IA 100,913 4.3 mi
Bettendorf, IA 39,647 4.7 mi
Milan 5,034 5.8 mi
Silvis 7,955 6.8 mi
Coal Valley 4,229 7.5 mi
East Moline 20,904 7.9 mi
Eldridge, IA 6,818 8.7 mi
Le Claire, IA 4,735 10.0 mi
Colona 5,139 11.1 mi
Geneseo 6,673 20.4 mi
DeWitt, IA 5,546 21.1 mi
Camanche, IA 4,550 23.4 mi

More nearby: every ZIP code in Rock Island County · Illinois ZIP codes

Cite this page

zipcodes.pro. “Rock Island Arsenal, IL ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/il/rock-island-arsenal

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